125 files changed, 1275 insertions, 1525 deletions
diff --git a/Documentation/ja_JP/HOWTO b/Documentation/ja_JP/HOWTO
index 488c77fa3aae..0775cf4798b2 100644
--- a/Documentation/ja_JP/HOWTO
+++ b/Documentation/ja_JP/HOWTO
@@ -11,14 +11,14 @@ for non English (read: Japanese) speakers and is not intended as a
 fork. So if you have any comments or updates for this file, please try
 to update the original English file first.
-Last Updated: 2007/11/16
+Last Updated: 2008/08/21
 ==================================
 これは、
-linux-2.6.24/Documentation/HOWTO
+linux-2.6.27/Documentation/HOWTO
 の和訳です。
 翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ >
-翻訳日： 2007/11/10
+翻訳日： 2008/8/5
 翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
 校正者： 松倉さん <nbh--mats at nifty dot com>
         小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp>
@@ -287,13 +287,15 @@ Linux カーネルの開発プロセスは現在幾つかの異なるメイン�
    に安定した状態にあると判断したときにリリースされます。目標は毎週新
    しい -rc カーネルをリリースすることです。
-   - 以下の URL で各 -rc リリースに存在する既知の後戻り問題のリスト
-     が追跡されます-
-     http://kernelnewbies.org/known_regressions
  - このプロセスはカーネルが 「準備ができた」と考えられるまで継続しま
    す。このプロセスはだいたい 6週間継続します。
+  - 各リリースでの既知の後戻り問題(regression: このリリースの中で新規
+    に作り込まれた問題を指す) はその都度 Linux-kernel メーリングリスト
+    に投稿されます。ゴールとしては、カーネルが 「準備ができた」と宣言
+    する前にこのリストの長さをゼロに減らすことですが、現実には、数個の
+    後戻り問題がリリース時にたびたび残ってしまいます。
 Andrew Morton が Linux-kernel メーリングリストにカーネルリリースについ
 て書いたことをここで言っておくことは価値があります-
  「カーネルがいつリリースされるかは誰も知りません。なぜなら、これは現
@@ -303,18 +305,20 @@ Andrew Morton が Linux-kernel メーリングリストにカーネルリリー�
 2.6.x.y -stable カーネルツリー
 ---------------------------
-バージョン��4つ目の数字が��い���カーネルは -stable カーネルです。これに
+バージョン番号��4つの数字��分か����い���カーネルは -stable カーネルです。
-は、2.6.x カーネルで見つかったセキュリティ問題や重大な後戻りに対する比
+��れに��、2.6.x カーネルで見つかったセキュリティ問題や重大な後戻りに対
-較的小さい重要な修正が含まれます。
+する比較的小さい重要な修正が含まれます。
 これは、開発/実験的バージョンのテストに協力することに興味が無く、
 最新の安定したカーネルを使いたいユーザに推奨するブランチです。
-もし、2.6.x.y カーネルが存在しない場合には、番号が一番大きい 2.6.x
+もし、2.6.x.y カーネルが存在しない場合には、番号が一番大きい 2.6.x が
-が最新の安定版カーネルです。
+最新の安定版カーネルです。
-2.6.x.y は "stable" チーム <stable@kernel.org> でメンテされており、だ
+2.6.x.y は "stable" チーム <stable@kernel.org> でメンテされており、必
-いたい隔週でリリースされています。
+要に応じてリリースされます。通常のリリース期間は 2週間毎ですが、差し迫っ
+た問題がなければもう少し長くなることもあります。セキュリティ関連の問題
+の場合はこれに対してだいたいの場合、すぐにリリースがされます。
 カーネルツリーに入っている、Documentation/stable_kernel_rules.txt ファ
 イルにはどのような種類の変更が -stable ツリーに受け入れ可能か、またリ
@@ -341,7 +345,9 @@ linux-kernel メーリングリストで収集された多数のパッチと同�
 メインラインへ入れるように Linus にプッシュします。
 メインカーネルツリーに含めるために Linus に送る前に、すべての新しいパッ
-チが -mm ツリーでテストされることが強く推奨されます。
+チが -mm ツリーでテストされることが強く推奨されています。マージウィン
+ドウが開く前に -mm ツリーに現れなかったパッチはメインラインにマージさ
+れることは困難になります。
 これらのカーネルは安定して動作すべきシステムとして使うのには適切ではあ
 りませんし、カーネルブランチの中でももっとも動作にリスクが高いものです。
@@ -395,13 +401,15 @@ linux-kernel メーリングリストで収集された多数のパッチと同�
    - pcmcia, Dominik Brodowski <linux@dominikbrodowski.net>
        git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
-    - SCSI, James Bottomley <James.Bottomley@SteelEye.com>
+    - SCSI, James Bottomley <James.Bottomley@hansenpartnership.com>
        git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
+    - x86, Ingo Molnar <mingo@elte.hu>
+        git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
  quilt ツリー-
-    - USB, PCI ドライバコアと I2C, Greg Kroah-Hartman <gregkh@suse.de>
+    - USB, ドライバコアと I2C, Greg Kroah-Hartman <gregkh@suse.de>
        kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
-    - x86-64 と i386 の仲間 Andi Kleen <ak@suse.de>
  その他のカーネルツリーは http://git.kernel.org/ と MAINTAINERS ファ
  イルに一覧表があります。
@@ -412,13 +420,32 @@ linux-kernel メーリングリストで収集された多数のパッチと同�
 bugzilla.kernel.org は Linux カーネル開発者がカーネルのバグを追跡する
 場所です。ユーザは見つけたバグの全てをこのツールで報告すべきです。
 どう kernel bugzilla を使うかの詳細は、以下を参照してください-
-        http://test.kernel.org/bugzilla/faq.html
+        http://bugzilla.kernel.org/page.cgi?id=faq.html
 メインカーネルソースディレクトリにあるファイル REPORTING-BUGS はカーネ
 ルバグらしいものについてどうレポートするかの良いテンプレートであり、問
 題の追跡を助けるためにカーネル開発者にとってどんな情報が必要なのかの詳
 細が書かれています。
+バグレポートの管理
+-------------------
+あなたのハッキングのスキルを訓練する最高の方法のひとつに、他人がレポー
+トしたバグを修正することがあります。あなたがカーネルをより安定化させる
+こに寄与するということだけでなく、あなたは 現実の問題を修正することを
+学び、自分のスキルも強化でき、また他の開発者があなたの存在に気がつき
+ます。バグを修正することは、多くの開発者の中から自分が功績をあげる最善
+の道です、なぜなら多くの人は他人のバグの修正に時間を浪費することを好ま
+ないからです。
+すでにレポートされたバグのために仕事をするためには、
+http://bugzilla.kernel.org に行ってください。もし今後のバグレポートに
+ついてアドバイスを受けたいのであれば、bugme-new メーリングリスト(新し
+いバグレポートだけがここにメールされる) または bugme-janitor メーリン
+グリスト(bugzilla の変更毎にここにメールされる)を購読できます。
+        http://lists.linux-foundation.org/mailman/listinfo/bugme-new
+        http://lists.linux-foundation.org/mailman/listinfo/bugme-janitors
 メーリングリスト
 -------------
diff --git a/Documentation/ja_JP/SubmitChecklist b/Documentation/ja_JP/SubmitChecklist
new file mode 100644
index 000000000000..6c42e071d723
--- /dev/null
+++ b/Documentation/ja_JP/SubmitChecklist
@@ -0,0 +1,111 @@
+NOTE:
+This is a version of Documentation/SubmitChecklist into Japanese.
+This document is maintained by Takenori Nagano <t-nagano@ah.jp.nec.com>
+and the JF Project team <http://www.linux.or.jp/JF/>.
+If you find any difference between this document and the original file
+or a problem with the translation,
+please contact the maintainer of this file or JF project.
+Please also note that the purpose of this file is to be easier to read
+for non English (read: Japanese) speakers and is not intended as a
+fork. So if you have any comments or updates of this file, please try
+to update the original English file first.
+Last Updated: 2008/07/14
+==================================
+これは、
+linux-2.6.26/Documentation/SubmitChecklist の和訳です。
+翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ >
+翻訳日： 2008/07/14
+翻訳者： Takenori Nagano <t-nagano at ah dot jp dot nec dot com>
+校正者： Masanori Kobayashi さん <zap03216 at nifty dot ne dot jp>
+==================================
+Linux カーネルパッチ投稿者向けチェックリスト
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+本書では、パッチをより素早く取り込んでもらいたい開発者が実践すべき基本的な事柄
+をいくつか紹介します。ここにある全ての事柄は、Documentation/SubmittingPatches
+などのLinuxカーネルパッチ投稿に際しての心得を補足するものです。
+ 1: 妥当なCONFIGオプションや変更されたCONFIGオプション、つまり =y, =m, =n
+    全てで正しくビルドできることを確認してください。その際、gcc及びリンカが
+    warningやerrorを出していないことも確認してください。
+ 2: allnoconfig, allmodconfig オプションを用いて正しくビルドできることを
+    確認してください。
+ 3: 手許のクロスコンパイルツールやOSDLのPLMのようなものを用いて、複数の
+    アーキテクチャにおいても正しくビルドできることを確認してください。
+ 4: 64bit長の'unsigned long'を使用しているppc64は、クロスコンパイルでの
+    チェックに適当なアーキテクチャです。
+ 5: カーネルコーディングスタイルに準拠しているかどうか確認してください(!)
+ 6: CONFIGオプションの追加・変更をした場合には、CONFIGメニューが壊れていない
+    ことを確認してください。
+ 7: 新しくKconfigのオプションを追加する際には、必ずそのhelpも記述してください。
+ 8: 適切なKconfigの依存関係を考えながら慎重にチェックしてください。
+    ただし、この作業はマシンを使ったテストできちんと行うのがとても困難です。
+    うまくやるには、自分の頭で考えることです。
+ 9: sparseを利用してちゃんとしたコードチェックをしてください。
+10: 'make checkstack' と 'make namespacecheck' を利用し、問題が発見されたら
+    修正してください。'make checkstack' は明示的に問題を示しませんが、どれか
+    １つの関数が512バイトより大きいスタックを使っていれば、修正すべき候補と
+    なります。
+11: グローバルなkernel API を説明する kernel-doc をソースの中に含めてください。
+    ( staticな関数においては必須ではありませんが、含めてもらっても結構です )
+    そして、'make htmldocs' もしくは 'make mandocs' を利用して追記した
+    ドキュメントのチェックを行い、問題が見つかった場合には修正を行ってください。
+12: CONFIG_PREEMPT, CONFIG_DEBUG_PREEMPT, CONFIG_DEBUG_SLAB,
+    CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_MUTEXES, CONFIG_DEBUG_SPINLOCK,
+    CONFIG_DEBUG_SPINLOCK_SLEEP これら全てを同時に有効にして動作確認を
+    行ってください。
+13: CONFIG_SMP, CONFIG_PREEMPT を有効にした場合と無効にした場合の両方で
+    ビルドした上、動作確認を行ってください。
+14: もしパッチがディスクのI/O性能などに影響を与えるようであれば、
+    'CONFIG_LBD'オプションを有効にした場合と無効にした場合の両方で
+    テストを実施してみてください。
+15: lockdepの機能を全て有効にした上で、全てのコードパスを評価してください。
+16: /proc に新しいエントリを追加した場合には、Documentation/ 配下に
+    必ずドキュメントを追加してください。
+17: 新しいブートパラメータを追加した場合には、
+    必ずDocumentation/kernel-parameters.txt に説明を追加してください。
+18: 新しくmoduleにパラメータを追加した場合には、MODULE_PARM_DESC()を
+    利用して必ずその説明を記述してください。
+19: 新しいuserspaceインタフェースを作成した場合には、Documentation/ABI/ に
+    Documentation/ABI/README を参考にして必ずドキュメントを追加してください。
+20: 'make headers_check'を実行して全く問題がないことを確認してください。
+21: 少なくともslabアロケーションとpageアロケーションに失敗した場合の
+    挙動について、fault-injectionを利用して確認してください。
+    Documentation/fault-injection/ を参照してください。
+    追加したコードがかなりの量であったならば、サブシステム特有の
+    fault-injectionを追加したほうが良いかもしれません。
+22: 新たに追加したコードは、`gcc -W'でコンパイルしてください。
+    このオプションは大量の不要なメッセージを出力しますが、
+    "warning: comparison between signed and unsigned" のようなメッセージは、
+    バグを見つけるのに役に立ちます。
+23: 投稿したパッチが -mm パッチセットにマージされた後、全ての既存のパッチや
+    VM, VFS およびその他のサブシステムに関する様々な変更と、現時点でも共存
+    できることを確認するテストを行ってください。
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a8976467a983..1150444a21ab 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1074,6 +1074,9 @@ and is between 256 and 4096 characters. It is defined in the file
                        * [no]ncq: Turn on or off NCQ.
+                        * nohrst, nosrst, norst: suppress hard, soft
+                          and both resets.
                        If there are multiple matching configurations changing
                        the same attribute, the last one is used.
diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index 0a7b3267c8d8..3c8383dbe9e6 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -405,7 +405,7 @@ static int impd1_probe(struct lm_device *dev)
                ret = amba_device_register(d, &dev->resource);
                if (ret) {
-                        dev_err(&d->dev, "unable to register device: %d\n");
+                        dev_err(&d->dev, "unable to register device: %d\n", ret);
                        kfree(d);
                }
        }
diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c
index 0db3a909ae61..501dfdcc39fe 100644
--- a/arch/arm/mach-ixp4xx/fsg-setup.c
+++ b/arch/arm/mach-ixp4xx/fsg-setup.c
@@ -64,7 +64,7 @@ static struct platform_device fsg_i2c_gpio = {
 static struct i2c_board_info __initdata fsg_i2c_board_info [] = {
        {
-                I2C_BOARD_INFO("rtc-isl1208", 0x6f),
+                I2C_BOARD_INFO("isl1208", 0x6f),
        },
 };
@@ -179,7 +179,6 @@ static void __init fsg_init(void)
 {
        DECLARE_MAC_BUF(mac_buf);
        uint8_t __iomem *f;
-        int i;
        ixp4xx_sys_init();
@@ -228,6 +227,7 @@ static void __init fsg_init(void)
        f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x400000);
        if (f) {
 #ifdef __ARMEB__
+                int i;
                for (i = 0; i < 6; i++) {
                        fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
                        fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index c01eea88f787..ca8e20538157 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -125,3 +125,28 @@ void clks_register(struct clk *clks, size_t num)
                list_add(&clks[i].node, &clocks);
        mutex_unlock(&clocks_mutex);
 }
+int clk_add_alias(char *alias, struct device *alias_dev, char *id,
+        struct device *dev)
+{
+        struct clk *r = clk_lookup(dev, id);
+        struct clk *new;
+        if (!r)
+                return -ENODEV;
+        new = kzalloc(sizeof(struct clk), GFP_KERNEL);
+        if (!new)
+                return -ENOMEM;
+        new->name = alias;
+        new->dev = alias_dev;
+        new->other = r;
+        mutex_lock(&clocks_mutex);
+        list_add(&new->node, &clocks);
+        mutex_unlock(&clocks_mutex);
+        return 0;
+}
diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h
index 1ec8f9178aaf..73be795fe3bf 100644
--- a/arch/arm/mach-pxa/clock.h
+++ b/arch/arm/mach-pxa/clock.h
@@ -1,3 +1,5 @@
+#include <linux/list.h>
 struct clk;
 struct clkops {
@@ -86,3 +88,6 @@ extern void clk_pxa3xx_cken_disable(struct clk *);
 #endif
 void clks_register(struct clk *clks, size_t num);
+int clk_add_alias(char *alias, struct device *alias_dev, char *id,
+        struct device *dev);
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 03942450885b..001a252bd514 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -10,18 +10,78 @@
 *
 */
+#include <linux/kernel.h>
 #include <linux/init.h>
 #include <asm/setup.h>
 #include <asm/mach/arch.h>
-#include <mach/hardware.h>
 #include <asm/mach-types.h>
+#include <mach/mfp-pxa25x.h>
+#include <mach/hardware.h>
 #include "generic.h"
+static unsigned long e740_pin_config[] __initdata = {
+        /* Chip selects */
+        GPIO15_nCS_1,   /* CS1 - Flash */
+        GPIO79_nCS_3,   /* CS3 - IMAGEON */
+        GPIO80_nCS_4,   /* CS4 - TMIO */
+        /* Clocks */
+        GPIO12_32KHz,
+        /* BTUART */
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_GPIO, /* Used by TMIO for #SUSPEND */
+        /* PC Card */
+        GPIO8_GPIO,   /* CD0 */
+        GPIO44_GPIO,  /* CD1 */
+        GPIO11_GPIO,  /* IRQ0 */
+        GPIO6_GPIO,   /* IRQ1 */
+        GPIO27_GPIO,  /* RST0 */
+        GPIO24_GPIO,  /* RST1 */
+        GPIO20_GPIO,  /* PWR0 */
+        GPIO23_GPIO,  /* PWR1 */
+        GPIO48_nPOE,
+        GPIO49_nPWE,
+        GPIO50_nPIOR,
+        GPIO51_nPIOW,
+        GPIO52_nPCE_1,
+        GPIO53_nPCE_2,
+        GPIO54_nPSKTSEL,
+        GPIO55_nPREG,
+        GPIO56_nPWAIT,
+        GPIO57_nIOIS16,
+        /* wakeup */
+        GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,
+};
+static unsigned long e400_pin_config[] __initdata = {
+        /* Chip selects */
+        GPIO15_nCS_1,   /* CS1 - Flash */
+        GPIO80_nCS_4,   /* CS4 - TMIO */
+        /* Clocks */
+        GPIO12_32KHz,
+        /* BTUART */
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_GPIO, /* Used by TMIO for #SUSPEND */
+        /* wakeup */
+        GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,
+};
 /* Only e800 has 128MB RAM */
 static void __init eseries_fixup(struct machine_desc *desc,
-                      struct tag *tags, char **cmdline, struct meminfo *mi)
+        struct tag *tags, char **cmdline, struct meminfo *mi)
 {
        mi->nr_banks=1;
        mi->bank[0].start = 0xa0000000;
@@ -32,83 +92,95 @@ static void __init eseries_fixup(struct machine_desc *desc,
                mi->bank[0].size = (64*1024*1024);
 }
+static void __init e740_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(e740_pin_config));
+}
+static void __init e400_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(e400_pin_config));
+}
 /* e-series machine definitions */
 #ifdef CONFIG_MACH_E330
 MACHINE_START(E330, "Toshiba e330")
-        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
 #ifdef CONFIG_MACH_E350
 MACHINE_START(E350, "Toshiba e350")
        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
 #ifdef CONFIG_MACH_E740
 MACHINE_START(E740, "Toshiba e740")
-        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .init_machine   = e740_init,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
 #ifdef CONFIG_MACH_E750
 MACHINE_START(E750, "Toshiba e750")
-        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
 #ifdef CONFIG_MACH_E400
 MACHINE_START(E400, "Toshiba e400")
-        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .init_machine   = e400_init,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
 #ifdef CONFIG_MACH_E800
 MACHINE_START(E800, "Toshiba e800")
-        /* Maintainer: Ian Molton (spyro@f2s.com) */
+        /* Maintainer: Ian Molton (spyro@f2s.com) */
-        .phys_io        = 0x40000000,
+        .phys_io        = 0x40000000,
-        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
-        .boot_params    = 0xa0000100,
+        .boot_params    = 0xa0000100,
-        .map_io         = pxa_map_io,
+        .map_io         = pxa_map_io,
-        .init_irq       = pxa25x_init_irq,
+        .init_irq       = pxa25x_init_irq,
-        .fixup          = eseries_fixup,
+        .fixup          = eseries_fixup,
-        .timer = &pxa_timer,
+        .timer          = &pxa_timer,
 MACHINE_END
 #endif
diff --git a/arch/arm/mach-pxa/include/mach/irqs.h b/arch/arm/mach-pxa/include/mach/irqs.h
index 32772bc6925c..108b5db9b2af 100644
--- a/arch/arm/mach-pxa/include/mach/irqs.h
+++ b/arch/arm/mach-pxa/include/mach/irqs.h
@@ -183,6 +183,7 @@
      defined(CONFIG_MACH_TOSA) || \
      defined(CONFIG_MACH_MAINSTONE) || \
      defined(CONFIG_MACH_PCM027) || \
+      defined(CONFIG_ARCH_PXA_ESERIES) || \
      defined(CONFIG_MACH_MAGICIAN)
 #define NR_IRQS                 (IRQ_BOARD_END)
 #elif defined(CONFIG_MACH_ZYLONITE)
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index bb9e09208b9f..4ffdff2d9ff1 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -52,6 +52,7 @@
 #include <mach/mmc.h>
 #include "generic.h"
+#include "clock.h"
 #include "devices.h"
 static unsigned long lubbock_pin_config[] __initdata = {
@@ -485,6 +486,7 @@ static void __init lubbock_init(void)
        pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
+        clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
        pxa_set_udc_info(&udc_info);
        set_pxa_fb_info(&sharp_lm8v31);
        pxa_set_mci_info(&lubbock_mci_platform_data);
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 9e5d8a8c6424..305452b56e91 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -166,8 +166,7 @@ static struct clk pxa25x_hwuart_clk =
 ;
 /*
- * PXA 2xx clock declarations. Order is important (see aliases below)
+ * PXA 2xx clock declarations.
- * Please be careful not to disrupt the ordering.
 */
 static struct clk pxa25x_clks[] = {
        INIT_CK("LCDCLK", LCD, &clk_pxa25x_lcd_ops, &pxa_device_fb.dev),
@@ -194,11 +193,6 @@ static struct clk pxa25x_clks[] = {
        INIT_CKEN("FICPCLK", FICP, 47923000, 0, NULL),
 };
-static struct clk pxa2xx_clk_aliases[] = {
-        INIT_CKOTHER("GPIO7_CLK", &pxa25x_clks[4], NULL),
-        INIT_CKOTHER("SA1111_CLK", &pxa25x_clks[5], NULL),
-};
 #ifdef CONFIG_PM
 #define SAVE(x)         sleep_save[SLEEP_SAVE_##x] = x
@@ -375,8 +369,6 @@ static int __init pxa25x_init(void)
        if (cpu_is_pxa255())
                ret = platform_device_register(&pxa_device_hwuart);
-        clks_register(pxa2xx_clk_aliases, ARRAY_SIZE(pxa2xx_clk_aliases));
        return ret;
 }
diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c
index 494fc1f032db..9adc7fc4618a 100644
--- a/arch/arm/mach-pxa/pxa300.c
+++ b/arch/arm/mach-pxa/pxa300.c
@@ -90,7 +90,9 @@ static struct clk common_clks[] = {
 };
 static struct clk pxa310_clks[] = {
+#ifdef CONFIG_CPU_PXA310
        PXA3xx_CKEN("MMCCLK", MMC3, 19500000, 0, &pxa3xx_device_mci3.dev),
+#endif
 };
 static int __init pxa300_init(void)
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index c5cdb975d590..9b0bc2c9fba0 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.26-rc4
+# Linux kernel version: 2.6.27-rc4
-# Fri May 30 09:49:33 2008
+# Thu Aug 21 19:43:29 2008
 #
 CONFIG_SCHED_MC=y
 CONFIG_MMU=y
@@ -68,7 +68,6 @@ CONFIG_INITRAMFS_SOURCE=""
 CONFIG_SYSCTL=y
 # CONFIG_EMBEDDED is not set
 CONFIG_SYSCTL_SYSCALL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
@@ -93,11 +92,17 @@ CONFIG_SLAB=y
 # CONFIG_MARKERS is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_KPROBES=y
+# CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is not set
 CONFIG_KRETPROBES=y
+# CONFIG_HAVE_IOREMAP_PROT is not set
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
+# CONFIG_HAVE_ARCH_TRACEHOOK is not set
 # CONFIG_HAVE_DMA_ATTRS is not set
+# CONFIG_USE_GENERIC_SMP_HELPERS is not set
+# CONFIG_HAVE_CLK is not set
 CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -113,6 +118,7 @@ CONFIG_STOP_MACHINE=y
 CONFIG_BLOCK=y
 # CONFIG_BLK_DEV_IO_TRACE is not set
 CONFIG_BLK_DEV_BSG=y
+# CONFIG_BLK_DEV_INTEGRITY is not set
 CONFIG_BLOCK_COMPAT=y
 #
@@ -175,6 +181,8 @@ CONFIG_PREEMPT=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_DEFAULT=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
 CONFIG_SELECT_MEMORY_MODEL=y
 # CONFIG_FLATMEM_MANUAL is not set
 # CONFIG_DISCONTIGMEM_MANUAL is not set
@@ -185,8 +193,12 @@ CONFIG_HAVE_MEMORY_PRESENT=y
 CONFIG_SPARSEMEM_EXTREME=y
 CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_SPARSE=y
+CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_MIGRATION=y
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=1
 CONFIG_BOUNCE=y
@@ -198,6 +210,7 @@ CONFIG_VIRT_TO_BUS=y
 CONFIG_MACHCHK_WARNING=y
 CONFIG_QDIO=y
 # CONFIG_QDIO_DEBUG is not set
+CONFIG_CHSC_SCH=m
 #
 # Misc
@@ -206,6 +219,7 @@ CONFIG_IPL=y
 # CONFIG_IPL_TAPE is not set
 CONFIG_IPL_VM=y
 CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 CONFIG_FORCE_MAX_ZONEORDER=9
 # CONFIG_PROCESS_DEBUG is not set
@@ -226,10 +240,6 @@ CONFIG_S390_HYPFS_FS=y
 CONFIG_KEXEC=y
 # CONFIG_ZFCPDUMP is not set
 CONFIG_S390_GUEST=y
-#
-# Networking
-#
 CONFIG_NET=y
 #
@@ -364,7 +374,6 @@ CONFIG_NET_SCH_CBQ=m
 # CONFIG_NET_SCH_HTB is not set
 # CONFIG_NET_SCH_HFSC is not set
 CONFIG_NET_SCH_PRIO=m
-CONFIG_NET_SCH_RR=m
 CONFIG_NET_SCH_RED=m
 CONFIG_NET_SCH_SFQ=m
 CONFIG_NET_SCH_TEQL=m
@@ -430,7 +439,9 @@ CONFIG_CCW=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
+CONFIG_FW_LOADER=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_EXTRA_FIRMWARE=""
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 CONFIG_SYS_HYPERVISOR=y
@@ -507,6 +518,11 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_DEBUG is not set
 CONFIG_ZFCP=y
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=m
@@ -522,14 +538,10 @@ CONFIG_DM_CRYPT=y
 CONFIG_DM_SNAPSHOT=y
 CONFIG_DM_MIRROR=y
 CONFIG_DM_ZERO=y
-CONFIG_DM_MULTIPATH=y
+CONFIG_DM_MULTIPATH=m
-# CONFIG_DM_MULTIPATH_EMC is not set
-# CONFIG_DM_MULTIPATH_RDAC is not set
-# CONFIG_DM_MULTIPATH_HP is not set
 # CONFIG_DM_DELAY is not set
 # CONFIG_DM_UEVENT is not set
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_IFB is not set
 CONFIG_DUMMY=m
 CONFIG_BONDING=m
@@ -544,7 +556,6 @@ CONFIG_NET_ETHERNET=y
 # CONFIG_IBM_NEW_EMAC_TAH is not set
 # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NETDEV_1000=y
-# CONFIG_E1000E_ENABLED is not set
 CONFIG_NETDEV_10000=y
 # CONFIG_TR is not set
 # CONFIG_WAN is not set
@@ -576,7 +587,10 @@ CONFIG_DEVKMEM=y
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_HVC_DRIVER=y
+CONFIG_VIRTIO_CONSOLE=y
 CONFIG_HW_RANDOM=m
+CONFIG_HW_RANDOM_VIRTIO=m
 # CONFIG_R3964 is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_MAX_RAW_DEVS=256
@@ -616,6 +630,7 @@ CONFIG_MONWRITER=m
 CONFIG_S390_VMUR=m
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
 # CONFIG_WATCHDOG is not set
 #
@@ -693,6 +708,7 @@ CONFIG_CONFIGFS_FS=m
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
 # CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -712,7 +728,6 @@ CONFIG_LOCKD_V4=y
 CONFIG_EXPORTFS=y
 CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=y
-# CONFIG_SUNRPC_BIND34 is not set
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
@@ -780,6 +795,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_WRITECOUNT is not set
+CONFIG_DEBUG_MEMORY_INIT=y
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
 # CONFIG_FRAME_POINTER is not set
@@ -789,6 +805,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_SAMPLES=y
 # CONFIG_SAMPLE_KOBJECT is not set
 # CONFIG_SAMPLE_KPROBES is not set
@@ -847,6 +864,10 @@ CONFIG_CRYPTO_HMAC=m
 # CONFIG_CRYPTO_MD4 is not set
 CONFIG_CRYPTO_MD5=m
 # CONFIG_CRYPTO_MICHAEL_MIC is not set
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
 CONFIG_CRYPTO_SHA1=m
 # CONFIG_CRYPTO_SHA256 is not set
 # CONFIG_CRYPTO_SHA512 is not set
@@ -895,6 +916,7 @@ CONFIG_BITREVERSE=m
 # CONFIG_GENERIC_FIND_NEXT_BIT is not set
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
+CONFIG_CRC_T10DIF=y
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=m
 CONFIG_CRC7=m
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index b4eb24ab5af9..8e9243ae0c19 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -709,7 +709,7 @@ static inline int find_next_zero_bit (const unsigned long * addr,
                 * __ffz_word returns __BITOPS_WORDSIZE
                 * if no zero bit is present in the word.
                 */
-                set = __ffz_word(0, *p >> bit) + bit;
+                set = __ffz_word(bit, *p >> bit);
                if (set >= size)
                        return size + offset;
                if (set < __BITOPS_WORDSIZE)
@@ -824,7 +824,7 @@ static inline int ext2_find_next_zero_bit(void *vaddr, unsigned long size,
                 * s390 version of ffz returns __BITOPS_WORDSIZE
                 * if no zero bit is present in the word.
                 */
-                set = ffz(__load_ulong_le(p, 0) >> bit) + bit;
+                set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit);
                if (set >= size)
                        return size + offset;
                if (set < __BITOPS_WORDSIZE)
@@ -865,7 +865,7 @@ static inline int ext2_find_next_bit(void *vaddr, unsigned long size,
                 * s390 version of ffz returns __BITOPS_WORDSIZE
                 * if no zero bit is present in the word.
                 */
-                set = ffs(__load_ulong_le(p, 0) >> bit) + bit;
+                set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit));
                if (set >= size)
                        return size + offset;
                if (set < __BITOPS_WORDSIZE)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 9839767d0842..3e2c05cb6a87 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -75,7 +75,9 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
        return sf->gprs[8];
 }
-DEFINE_PER_CPU(struct s390_idle_data, s390_idle);
+DEFINE_PER_CPU(struct s390_idle_data, s390_idle) = {
+        .lock = __SPIN_LOCK_UNLOCKED(s390_idle.lock)
+};
 static int s390_idle_enter(void)
 {
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b795b3e24afd..00b9b4dec5eb 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -610,7 +610,6 @@ static void __init smp_create_idle(unsigned int cpu)
        if (IS_ERR(p))
                panic("failed fork for CPU %u: %li", cpu, PTR_ERR(p));
        current_set[cpu] = p;
-        spin_lock_init(&(&per_cpu(s390_idle, cpu))->lock);
 }
 static int __cpuinit smp_alloc_lowcore(int cpu)
@@ -845,7 +844,6 @@ void __init smp_prepare_boot_cpu(void)
        current_set[0] = current;
        smp_cpu_state[0] = CPU_STATE_CONFIGURED;
        smp_cpu_polarization[0] = POLARIZATION_UNKNWN;
-        spin_lock_init(&(&__get_cpu_var(s390_idle))->lock);
 }
 void __init smp_cpus_done(unsigned int max_cpus)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index de39e1f2ede5..69b4d060b21c 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -65,7 +65,7 @@ static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
        u8 *target;
        tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
-        target = (iommu->cmd_buf + tail);
+        target = iommu->cmd_buf + tail;
        memcpy_toio(target, cmd, sizeof(*cmd));
        tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size;
        head = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET);
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c
index 84a8220a6072..a6ef672adbba 100644
--- a/arch/x86/kernel/cpu/addon_cpuid_features.c
+++ b/arch/x86/kernel/cpu/addon_cpuid_features.c
@@ -56,9 +56,22 @@ void __cpuinit validate_pat_support(struct cpuinfo_x86 *c)
        switch (c->x86_vendor) {
        case X86_VENDOR_INTEL:
-                if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
+                /*
+                 * There is a known erratum on Pentium III and Core Solo
+                 * and Core Duo CPUs.
+                 * " Page with PAT set to WC while associated MTRR is UC
+                 *   may consolidate to UC "
+                 * Because of this erratum, it is better to stick with
+                 * setting WC in MTRR rather than using PAT on these CPUs.
+                 *
+                 * Enable PAT WC only on P4, Core 2 or later CPUs.
+                 */
+                if (c->x86 > 0x6 || (c->x86 == 6 && c->x86_model >= 15))
                        return;
-                break;
+                pat_disable("PAT WC disabled due to known CPU erratum.");
+                return;
        case X86_VENDOR_AMD:
        case X86_VENDOR_CENTAUR:
        case X86_VENDOR_TRANSMETA:
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 3fd7a67bb06a..e710a21bb6e8 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -134,23 +134,6 @@ static void __cpuinit set_cx86_memwb(void)
        setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14);
 }
-static void __cpuinit set_cx86_inc(void)
-{
-        unsigned char ccr3;
-        printk(KERN_INFO "Enable Incrementor on Cyrix/NSC processor.\n");
-        ccr3 = getCx86(CX86_CCR3);
-        setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
-        /* PCR1 -- Performance Control */
-        /* Incrementor on, whatever that is */
-        setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02);
-        /* PCR0 -- Performance Control */
-        /* Incrementor Margin 10 */
-        setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04);
-        setCx86(CX86_CCR3, ccr3);       /* disable MAPEN */
-}
 /*
 *      Configure later MediaGX and/or Geode processor.
 */
@@ -174,7 +157,6 @@ static void __cpuinit geode_configure(void)
        set_cx86_memwb();
        set_cx86_reorder();
-        set_cx86_inc();
        local_irq_restore(flags);
 }
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 509bd3d9eacd..cb7d3b6a80eb 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -379,6 +379,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
                             unsigned long *size, mtrr_type *type)
 {
        unsigned int mask_lo, mask_hi, base_lo, base_hi;
+        unsigned int tmp, hi;
        rdmsr(MTRRphysMask_MSR(reg), mask_lo, mask_hi);
        if ((mask_lo & 0x800) == 0) {
@@ -392,8 +393,23 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
        rdmsr(MTRRphysBase_MSR(reg), base_lo, base_hi);
        /* Work out the shifted address mask. */
-        mask_lo = size_or_mask | mask_hi << (32 - PAGE_SHIFT)
+        tmp = mask_hi << (32 - PAGE_SHIFT) | mask_lo >> PAGE_SHIFT;
-            | mask_lo >> PAGE_SHIFT;
+        mask_lo = size_or_mask | tmp;
+        /* Expand tmp with high bits to all 1s*/
+        hi = fls(tmp);
+        if (hi > 0) {
+                tmp |= ~((1<<(hi - 1)) - 1);
+                if (tmp != mask_lo) {
+                        static int once = 1;
+                        if (once) {
+                                printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
+                                once = 0;
+                        }
+                        mask_lo = tmp;
+                }
+        }
        /* This works correctly if size is a power of two, i.e. a
           contiguous range. */
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 6f23969c8faf..b117d7f8a564 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -1496,11 +1496,8 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
        /* kvm/qemu doesn't have mtrr set right, don't trim them all */
        if (!highest_pfn) {
-                if (!kvm_para_available()) {
+                WARN(!kvm_para_available(), KERN_WARNING
-                        printk(KERN_WARNING
                                "WARNING: strange, CPU MTRRs all blank?\n");
-                        WARN_ON(1);
-                }
                return 0;
        }
diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c
index 2d7e307c7779..bfa837cb16be 100644
--- a/arch/x86/kernel/genx2apic_uv_x.c
+++ b/arch/x86/kernel/genx2apic_uv_x.c
@@ -293,7 +293,9 @@ static __init void uv_rtc_init(void)
                sn_rtc_cycles_per_second = ticks_per_sec;
 }
-static __init void uv_system_init(void)
+static bool uv_system_inited;
+void __init uv_system_init(void)
 {
        union uvh_si_addr_map_config_u m_n_config;
        union uvh_node_id_u node_id;
@@ -383,6 +385,7 @@ static __init void uv_system_init(void)
        map_mmr_high(max_pnode);
        map_config_high(max_pnode);
        map_mmioh_high(max_pnode);
+        uv_system_inited = true;
 }
 /*
@@ -391,8 +394,7 @@ static __init void uv_system_init(void)
 */
 void __cpuinit uv_cpu_init(void)
 {
-        if (!uv_node_to_blade)
+        BUG_ON(!uv_system_inited);
-                uv_system_init();
        uv_blade_info[uv_numa_blade_id()].nr_online_cpus++;
diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c
index b8c45610b20a..eecc8c18f010 100644
--- a/arch/x86/kernel/numaq_32.c
+++ b/arch/x86/kernel/numaq_32.c
@@ -73,7 +73,7 @@ static void __init smp_dump_qct(void)
 }
-void __init numaq_tsc_disable(void)
+void __cpuinit numaq_tsc_disable(void)
 {
        if (!found_numaq)
                return;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 94da4d52d798..300da17e61cb 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -471,7 +471,7 @@ struct pv_lock_ops pv_lock_ops = {
        .spin_unlock = __ticket_spin_unlock,
 #endif
 };
-EXPORT_SYMBOL_GPL(pv_lock_ops);
+EXPORT_SYMBOL(pv_lock_ops);
 EXPORT_SYMBOL_GPL(pv_time_ops);
 EXPORT_SYMBOL    (pv_cpu_ops);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 218d783ed7a8..dcdac6c826e9 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -343,9 +343,8 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
        /* were we called with bad_dma_address? */
        badend = bad_dma_address + (EMERGENCY_PAGES * PAGE_SIZE);
        if (unlikely((dma_addr >= bad_dma_address) && (dma_addr < badend))) {
-                printk(KERN_ERR "Calgary: driver tried unmapping bad DMA "
+                WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
                       "address 0x%Lx\n", dma_addr);
-                WARN_ON(1);
                return;
        }
@@ -1269,13 +1268,15 @@ static inline int __init determine_tce_table_size(u64 ram)
 static int __init build_detail_arrays(void)
 {
        unsigned long ptr;
-        int i, scal_detail_size, rio_detail_size;
+        unsigned numnodes, i;
+        int scal_detail_size, rio_detail_size;
-        if (rio_table_hdr->num_scal_dev > MAX_NUMNODES){
+        numnodes = rio_table_hdr->num_scal_dev;
+        if (numnodes > MAX_NUMNODES){
                printk(KERN_WARNING
                        "Calgary: MAX_NUMNODES too low! Defined as %d, "
                        "but system has %d nodes.\n",
-                        MAX_NUMNODES, rio_table_hdr->num_scal_dev);
+                        MAX_NUMNODES, numnodes);
                return -ENODEV;
        }
@@ -1296,8 +1297,7 @@ static int __init build_detail_arrays(void)
        }
        ptr = ((unsigned long)rio_table_hdr) + 3;
-        for (i = 0; i < rio_table_hdr->num_scal_dev;
+        for (i = 0; i < numnodes; i++, ptr += scal_detail_size)
-                    i++, ptr += scal_detail_size)
                scal_devs[i] = (struct scal_detail *)ptr;
        for (i = 0; i < rio_table_hdr->num_rio_dev;
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index a4656adab53b..362d4e7f2d38 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -604,14 +604,6 @@ void __init setup_arch(char **cmdline_p)
        early_cpu_init();
        early_ioremap_init();
-#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
-        /*
-         * Must be before kernel pagetables are setup
-         * or fixmap area is touched.
-         */
-        vmi_init();
-#endif
        ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
        screen_info = boot_params.screen_info;
        edid_info = boot_params.edid_info;
@@ -678,6 +670,14 @@ void __init setup_arch(char **cmdline_p)
        parse_early_param();
+#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
+        /*
+         * Must be before kernel pagetables are setup
+         * or fixmap area is touched.
+         */
+        vmi_init();
+#endif
        /* after early param, so could get panic from serial */
        reserve_early_setup_data();
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index e139e617f422..7985c5b3f916 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1221,6 +1221,9 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
        printk(KERN_INFO "CPU%d: ", 0);
        print_cpu_info(&cpu_data(0));
        setup_boot_clock();
+        if (is_uv_system())
+                uv_system_init();
 out:
        preempt_enable();
 }
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index d0fbb7712ab0..8b8c0d6640fa 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -17,6 +17,7 @@
 #include <asm/genapic.h>
 #include <asm/idle.h>
 #include <asm/tsc.h>
+#include <asm/irq_vectors.h>
 #include <mach_apic.h>
@@ -783,7 +784,7 @@ static int __init uv_bau_init(void)
                uv_init_blade(blade, node, cur_cpu);
                cur_cpu += uv_blade_nr_possible_cpus(blade);
        }
-        set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
+        alloc_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
        uv_enable_timeouts();
        return 0;
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 0577825cf89b..9ffb01c31c40 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -88,11 +88,9 @@ static __cpuinit void check_tsc_warp(void)
                        __raw_spin_unlock(&sync_lock);
                }
        }
-        if (!(now-start)) {
+        WARN(!(now-start),
-                printk("Warning: zero tsc calibration delta: %Ld [max: %Ld]\n",
+                "Warning: zero tsc calibration delta: %Ld [max: %Ld]\n",
                        now-start, end-start);
-                WARN_ON(1);
-        }
 }
 /*
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a87ea0e4b3dc..d3746efb060d 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -241,7 +241,7 @@ static unsigned long __initdata table_start;
 static unsigned long __meminitdata table_end;
 static unsigned long __meminitdata table_top;
-static __meminit void *alloc_low_page(unsigned long *phys)
+static __ref void *alloc_low_page(unsigned long *phys)
 {
        unsigned long pfn = table_end++;
        void *adr;
@@ -262,7 +262,7 @@ static __meminit void *alloc_low_page(unsigned long *phys)
        return adr;
 }
-static __meminit void unmap_low_page(void *adr)
+static __ref void unmap_low_page(void *adr)
 {
        if (after_bootmem)
                return;
@@ -336,9 +336,12 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end,
                }
                if (pmd_val(*pmd)) {
-                        if (!pmd_large(*pmd))
+                        if (!pmd_large(*pmd)) {
+                                spin_lock(&init_mm.page_table_lock);
                                last_map_addr = phys_pte_update(pmd, address,
-                                                                 end);
+                                                                end);
+                                spin_unlock(&init_mm.page_table_lock);
+                        }
                        /* Count entries we're using from level2_ident_pgt */
                        if (start == 0)
                                pages++;
@@ -347,8 +350,10 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end,
                if (page_size_mask & (1<<PG_LEVEL_2M)) {
                        pages++;
+                        spin_lock(&init_mm.page_table_lock);
                        set_pte((pte_t *)pmd,
                                pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
+                        spin_unlock(&init_mm.page_table_lock);
                        last_map_addr = (address & PMD_MASK) + PMD_SIZE;
                        continue;
                }
@@ -357,7 +362,9 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end,
                last_map_addr = phys_pte_init(pte, address, end);
                unmap_low_page(pte);
+                spin_lock(&init_mm.page_table_lock);
                pmd_populate_kernel(&init_mm, pmd, __va(pte_phys));
+                spin_unlock(&init_mm.page_table_lock);
        }
        update_page_count(PG_LEVEL_2M, pages);
        return last_map_addr;
@@ -370,9 +377,7 @@ phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end,
        pmd_t *pmd = pmd_offset(pud, 0);
        unsigned long last_map_addr;
-        spin_lock(&init_mm.page_table_lock);
        last_map_addr = phys_pmd_init(pmd, address, end, page_size_mask);
-        spin_unlock(&init_mm.page_table_lock);
        __flush_tlb_all();
        return last_map_addr;
 }
@@ -408,20 +413,21 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
                if (page_size_mask & (1<<PG_LEVEL_1G)) {
                        pages++;
+                        spin_lock(&init_mm.page_table_lock);
                        set_pte((pte_t *)pud,
                                pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
+                        spin_unlock(&init_mm.page_table_lock);
                        last_map_addr = (addr & PUD_MASK) + PUD_SIZE;
                        continue;
                }
                pmd = alloc_low_page(&pmd_phys);
-                spin_lock(&init_mm.page_table_lock);
                last_map_addr = phys_pmd_init(pmd, addr, end, page_size_mask);
                unmap_low_page(pmd);
+                spin_lock(&init_mm.page_table_lock);
                pud_populate(&init_mm, pud, __va(pmd_phys));
                spin_unlock(&init_mm.page_table_lock);
        }
        __flush_tlb_all();
        update_page_count(PG_LEVEL_1G, pages);
@@ -513,16 +519,14 @@ static unsigned long __init kernel_physical_mapping_init(unsigned long start,
                        continue;
                }
-                if (after_bootmem)
+                pud = alloc_low_page(&pud_phys);
-                        pud = pud_offset(pgd, start & PGDIR_MASK);
-                else
-                        pud = alloc_low_page(&pud_phys);
                last_map_addr = phys_pud_init(pud, __pa(start), __pa(next),
                                                 page_size_mask);
                unmap_low_page(pud);
-                pgd_populate(&init_mm, pgd_offset_k(start),
-                             __va(pud_phys));
+                spin_lock(&init_mm.page_table_lock);
+                pgd_populate(&init_mm, pgd, __va(pud_phys));
+                spin_unlock(&init_mm.page_table_lock);
        }
        return last_map_addr;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 6ba6f889c79d..d4b6e6a29ae3 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -553,13 +553,11 @@ static int __init check_early_ioremap_leak(void)
 {
        if (!early_ioremap_nested)
                return 0;
+        WARN(1, KERN_WARNING
-        printk(KERN_WARNING
               "Debug warning: early ioremap leak of %d areas detected.\n",
-               early_ioremap_nested);
+                early_ioremap_nested);
        printk(KERN_WARNING
-               "please boot with early_ioremap_debug and report the dmesg.\n");
+                "please boot with early_ioremap_debug and report the dmesg.\n");
-        WARN_ON(1);
        return 1;
 }
diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
index e7397e108beb..635b50e85581 100644
--- a/arch/x86/mm/mmio-mod.c
+++ b/arch/x86/mm/mmio-mod.c
@@ -430,7 +430,9 @@ static void enter_uniprocessor(void)
                                                "may miss events.\n");
 }
-static void leave_uniprocessor(void)
+/* __ref because leave_uniprocessor calls cpu_up which is __cpuinit,
+   but this whole function is ifdefed CONFIG_HOTPLUG_CPU */
+static void __ref leave_uniprocessor(void)
 {
        int cpu;
        int err;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index f5f5154ea11e..43e2f8483e4f 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -849,7 +849,7 @@ int set_memory_uc(unsigned long addr, int numpages)
        /*
         * for now UC MINUS. see comments in ioremap_nocache()
         */
-        if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
+        if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
                            _PAGE_CACHE_UC_MINUS, NULL))
                return -EINVAL;
@@ -868,7 +868,7 @@ int set_memory_wc(unsigned long addr, int numpages)
        if (!pat_enabled)
                return set_memory_uc(addr, numpages);
-        if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
+        if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
                _PAGE_CACHE_WC, NULL))
                return -EINVAL;
@@ -884,7 +884,7 @@ int _set_memory_wb(unsigned long addr, int numpages)
 int set_memory_wb(unsigned long addr, int numpages)
 {
-        free_memtype(addr, addr + numpages * PAGE_SIZE);
+        free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
        return _set_memory_wb(addr, numpages);
 }
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 2fe30916d4b6..2a50e0fa64a5 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -207,6 +207,9 @@ static int chk_conflict(struct memtype *new, struct memtype *entry,
        return -EBUSY;
 }
+static struct memtype *cached_entry;
+static u64 cached_start;
 /*
 * req_type typically has one of the:
 * - _PAGE_CACHE_WB
@@ -280,11 +283,17 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
        spin_lock(&memtype_lock);
+        if (cached_entry && start >= cached_start)
+                entry = cached_entry;
+        else
+                entry = list_entry(&memtype_list, struct memtype, nd);
        /* Search for existing mapping that overlaps the current range */
        where = NULL;
-        list_for_each_entry(entry, &memtype_list, nd) {
+        list_for_each_entry_continue(entry, &memtype_list, nd) {
                if (end <= entry->start) {
                        where = entry->nd.prev;
+                        cached_entry = list_entry(where, struct memtype, nd);
                        break;
                } else if (start <= entry->start) { /* end > entry->start */
                        err = chk_conflict(new, entry, new_type);
@@ -292,6 +301,8 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
                                dprintk("Overlap at 0x%Lx-0x%Lx\n",
                                        entry->start, entry->end);
                                where = entry->nd.prev;
+                                cached_entry = list_entry(where,
+                                                        struct memtype, nd);
                        }
                        break;
                } else if (start < entry->end) { /* start > entry->start */
@@ -299,7 +310,20 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
                        if (!err) {
                                dprintk("Overlap at 0x%Lx-0x%Lx\n",
                                        entry->start, entry->end);
-                                where = &entry->nd;
+                                cached_entry = list_entry(entry->nd.prev,
+                                                        struct memtype, nd);
+                                /*
+                                 * Move to right position in the linked
+                                 * list to add this new entry
+                                 */
+                                list_for_each_entry_continue(entry,
+                                                        &memtype_list, nd) {
+                                        if (start <= entry->start) {
+                                                where = entry->nd.prev;
+                                                break;
+                                        }
+                                }
                        }
                        break;
                }
@@ -314,6 +338,8 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
                return err;
        }
+        cached_start = start;
        if (where)
                list_add(&new->nd, where);
        else
@@ -343,6 +369,9 @@ int free_memtype(u64 start, u64 end)
        spin_lock(&memtype_lock);
        list_for_each_entry(entry, &memtype_list, nd) {
                if (entry->start == start && entry->end == end) {
+                        if (cached_entry == entry || cached_start == start)
+                                cached_entry = NULL;
                        list_del(&entry->nd);
                        kfree(entry);
                        err = 0;
@@ -361,14 +390,6 @@ int free_memtype(u64 start, u64 end)
 }
-/*
- * /dev/mem mmap interface. The memtype used for mapping varies:
- * - Use UC for mappings with O_SYNC flag
- * - Without O_SYNC flag, if there is any conflict in reserve_memtype,
- *   inherit the memtype from existing mapping.
- * - Else use UC_MINUS memtype (for backward compatibility with existing
- *   X drivers.
- */
 pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
                                unsigned long size, pgprot_t vma_prot)
 {
@@ -406,14 +427,14 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
                                unsigned long size, pgprot_t *vma_prot)
 {
        u64 offset = ((u64) pfn) << PAGE_SHIFT;
-        unsigned long flags = _PAGE_CACHE_UC_MINUS;
+        unsigned long flags = -1;
        int retval;
        if (!range_is_allowed(pfn, size))
                return 0;
        if (file->f_flags & O_SYNC) {
-                flags = _PAGE_CACHE_UC;
+                flags = _PAGE_CACHE_UC_MINUS;
        }
 #ifdef CONFIG_X86_32
@@ -436,13 +457,14 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
 #endif
        /*
-         * With O_SYNC, we can only take UC mapping. Fail if we cannot.
+         * With O_SYNC, we can only take UC_MINUS mapping. Fail if we cannot.
+         *
         * Without O_SYNC, we want to get
         * - WB for WB-able memory and no other conflicting mappings
         * - UC_MINUS for non-WB-able memory with no other conflicting mappings
         * - Inherit from confliting mappings otherwise
         */
-        if (flags != _PAGE_CACHE_UC_MINUS) {
+        if (flags != -1) {
                retval = reserve_memtype(offset, offset + size, flags, NULL);
        } else {
                retval = reserve_memtype(offset, offset + size, -1, &flags);
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 3f90289410e6..0227694f7dab 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/moduleparam.h>
 #include <linux/kdebug.h>
+#include <linux/cpu.h>
 #include <asm/nmi.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
@@ -28,23 +29,48 @@ static DEFINE_PER_CPU(unsigned long, saved_lvtpc);
 static int nmi_start(void);
 static void nmi_stop(void);
+static void nmi_cpu_start(void *dummy);
+static void nmi_cpu_stop(void *dummy);
 /* 0 == registered but off, 1 == registered and on */
 static int nmi_enabled = 0;
+#ifdef CONFIG_SMP
+static int oprofile_cpu_notifier(struct notifier_block *b, unsigned long action,
+                                 void *data)
+{
+        int cpu = (unsigned long)data;
+        switch (action) {
+        case CPU_DOWN_FAILED:
+        case CPU_ONLINE:
+                smp_call_function_single(cpu, nmi_cpu_start, NULL, 0);
+                break;
+        case CPU_DOWN_PREPARE:
+                smp_call_function_single(cpu, nmi_cpu_stop, NULL, 1);
+                break;
+        }
+        return NOTIFY_DONE;
+}
+static struct notifier_block oprofile_cpu_nb = {
+        .notifier_call = oprofile_cpu_notifier
+};
+#endif
 #ifdef CONFIG_PM
 static int nmi_suspend(struct sys_device *dev, pm_message_t state)
 {
+        /* Only one CPU left, just stop that one */
        if (nmi_enabled == 1)
-                nmi_stop();
+                nmi_cpu_stop(NULL);
        return 0;
 }
 static int nmi_resume(struct sys_device *dev)
 {
        if (nmi_enabled == 1)
-                nmi_start();
+                nmi_cpu_start(NULL);
        return 0;
 }
@@ -463,6 +489,9 @@ int __init op_nmi_init(struct oprofile_operations *ops)
        }
        init_sysfs();
+#ifdef CONFIG_SMP
+        register_cpu_notifier(&oprofile_cpu_nb);
+#endif
        using_nmi = 1;
        ops->create_files = nmi_create_files;
        ops->setup = nmi_setup;
@@ -476,6 +505,10 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 void op_nmi_exit(void)
 {
-        if (using_nmi)
+        if (using_nmi) {
                exit_sysfs();
+#ifdef CONFIG_SMP
+                unregister_cpu_notifier(&oprofile_cpu_nb);
+#endif
+        }
 }
diff --git a/block/genhd.c b/block/genhd.c
index c13cc77291af..656c2c7abf99 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -293,27 +293,30 @@ void __init printk_all_partitions(void)
 /* iterator */
 static int find_start(struct device *dev, void *data)
 {
-        loff_t k = *(loff_t *)data;
+        loff_t *k = data;
        if (dev->type != &disk_type)
                return 0;
-        if (!k--)
+        if (!*k)
                return 1;
+        (*k)--;
        return 0;
 }
 static void *part_start(struct seq_file *part, loff_t *pos)
 {
        struct device *dev;
-        loff_t n = *pos;
+        loff_t k = *pos;
-        if (!n)
+        if (!k)
                seq_puts(part, "major minor  #blocks  name\n\n");
        mutex_lock(&block_class_lock);
-        dev = class_find_device(&block_class, NULL, (void *)pos, find_start);
+        dev = class_find_device(&block_class, NULL, &k, find_start);
-        if (dev)
+        if (dev) {
+                put_device(dev);
                return dev_to_disk(dev);
+        }
        return NULL;
 }
@@ -330,8 +333,10 @@ static void *part_next(struct seq_file *part, void *v, loff_t *pos)
        struct device *dev;
        ++*pos;
        dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
-        if (dev)
+        if (dev) {
+                put_device(dev);
                return dev_to_disk(dev);
+        }
        return NULL;
 }
@@ -568,11 +573,14 @@ static struct device_type disk_type = {
 static void *diskstats_start(struct seq_file *part, loff_t *pos)
 {
        struct device *dev;
+        loff_t k = *pos;
        mutex_lock(&block_class_lock);
-        dev = class_find_device(&block_class, NULL, (void *)pos, find_start);
+        dev = class_find_device(&block_class, NULL, &k, find_start);
-        if (dev)
+        if (dev) {
+                put_device(dev);
                return dev_to_disk(dev);
+        }
        return NULL;
 }
@@ -583,8 +591,10 @@ static void *diskstats_next(struct seq_file *part, void *v, loff_t *pos)
        ++*pos;
        dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
-        if (dev)
+        if (dev) {
+                put_device(dev);
                return dev_to_disk(dev);
+        }
        return NULL;
 }
@@ -712,10 +722,12 @@ dev_t blk_lookup_devt(const char *name, int part)
        mutex_lock(&block_class_lock);
        find.name = name;
        find.part = part;
-        dev = class_find_device(&block_class, NULL, (void *)&find, match_id);
+        dev = class_find_device(&block_class, NULL, &find, match_id);
-        if (dev)
+        if (dev) {
+                put_device(dev);
                devt = MKDEV(MAJOR(dev->devt),
                             MINOR(dev->devt) + part);
+        }
        mutex_unlock(&block_class_lock);
        return devt;
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ef3e5522e1a4..c729e6988bbb 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -486,6 +486,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
        { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
        { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
+        { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
+        { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
        /* JMicron 360/1/3/5/6, match class to avoid IDE function */
        { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -575,9 +577,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci },            /* MCP7B */
        /* SiS */
-        { PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp },          /* SiS 966 */
+        { PCI_VDEVICE(SI, 0x1184), board_ahci },                /* SiS 966 */
-        { PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp },          /* SiS 968 */
+        { PCI_VDEVICE(SI, 0x1185), board_ahci },                /* SiS 968 */
-        { PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp },          /* SiS 968 */
+        { PCI_VDEVICE(SI, 0x0186), board_ahci },                /* SiS 968 */
        /* Marvell */
        { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },        /* 6145 */
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index c294121fd69e..b1d08a8f5003 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -275,6 +275,14 @@ static const struct pci_device_id piix_pci_tbl[] = {
        { 0x8086, 0x3a20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
        /* SATA Controller IDE (ICH10) */
        { 0x8086, 0x3a26, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+        /* SATA Controller IDE (PCH) */
+        { 0x8086, 0x3b20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
+        /* SATA Controller IDE (PCH) */
+        { 0x8086, 0x3b26, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+        /* SATA Controller IDE (PCH) */
+        { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+        /* SATA Controller IDE (PCH) */
+        { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
        { }     /* terminate list */
 };
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 5ba96c5052c8..79e3a8e7a84a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -104,6 +104,7 @@ struct ata_force_param {
        unsigned long   xfer_mask;
        unsigned int    horkage_on;
        unsigned int    horkage_off;
+        unsigned int    lflags;
 };
 struct ata_force_ent {
@@ -196,22 +197,23 @@ void ata_force_cbl(struct ata_port *ap)
 }
 /**
- *      ata_force_spd_limit - force SATA spd limit according to libata.force
+ *      ata_force_link_limits - force link limits according to libata.force
 *      @link: ATA link of interest
 *
- *      Force SATA spd limit according to libata.force and whine about
+ *      Force link flags and SATA spd limit according to libata.force
- *      it.  When only the port part is specified (e.g. 1:), the limit
+ *      and whine about it.  When only the port part is specified
- *      applies to all links connected to both the host link and all
+ *      (e.g. 1:), the limit applies to all links connected to both
- *      fan-out ports connected via PMP.  If the device part is
+ *      the host link and all fan-out ports connected via PMP.  If the
- *      specified as 0 (e.g. 1.00:), it specifies the first fan-out
+ *      device part is specified as 0 (e.g. 1.00:), it specifies the
- *      link not the host link.  Device number 15 always points to the
+ *      first fan-out link not the host link.  Device number 15 always
- *      host link whether PMP is attached or not.
+ *      points to the host link whether PMP is attached or not.
 *
 *      LOCKING:
 *      EH context.
 */
-static void ata_force_spd_limit(struct ata_link *link)
+static void ata_force_link_limits(struct ata_link *link)
 {
+        bool did_spd = false;
        int linkno, i;
        if (ata_is_host_link(link))
@@ -228,13 +230,22 @@ static void ata_force_spd_limit(struct ata_link *link)
                if (fe->device != -1 && fe->device != linkno)
                        continue;
-                if (!fe->param.spd_limit)
+                /* only honor the first spd limit */
-                        continue;
+                if (!did_spd && fe->param.spd_limit) {
+                        link->hw_sata_spd_limit = (1 << fe->param.spd_limit) - 1;
+                        ata_link_printk(link, KERN_NOTICE,
+                                        "FORCE: PHY spd limit set to %s\n",
+                                        fe->param.name);
+                        did_spd = true;
+                }
-                link->hw_sata_spd_limit = (1 << fe->param.spd_limit) - 1;
+                /* let lflags stack */
-                ata_link_printk(link, KERN_NOTICE,
+                if (fe->param.lflags) {
-                        "FORCE: PHY spd limit set to %s\n", fe->param.name);
+                        link->flags |= fe->param.lflags;
-                return;
+                        ata_link_printk(link, KERN_NOTICE,
+                                        "FORCE: link flag 0x%x forced -> 0x%x\n",
+                                        fe->param.lflags, link->flags);
+                }
        }
 }
@@ -3277,7 +3288,7 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
                dev->dma_mode = ata_xfer_mask2mode(dma_mask);
                found = 1;
-                if (dev->dma_mode != 0xff)
+                if (ata_dma_enabled(dev))
                        used_dma = 1;
        }
        if (!found)
@@ -3302,7 +3313,7 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
        /* step 3: set host DMA timings */
        ata_link_for_each_dev(dev, link) {
-                if (!ata_dev_enabled(dev) || dev->dma_mode == 0xff)
+                if (!ata_dev_enabled(dev) || !ata_dma_enabled(dev))
                        continue;
                dev->xfer_mode = dev->dma_mode;
@@ -5188,19 +5199,18 @@ void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp)
 */
 int sata_link_init_spd(struct ata_link *link)
 {
-        u32 scontrol;
        u8 spd;
        int rc;
-        rc = sata_scr_read(link, SCR_CONTROL, &scontrol);
+        rc = sata_scr_read(link, SCR_CONTROL, &link->saved_scontrol);
        if (rc)
                return rc;
-        spd = (scontrol >> 4) & 0xf;
+        spd = (link->saved_scontrol >> 4) & 0xf;
        if (spd)
                link->hw_sata_spd_limit &= (1 << spd) - 1;
-        ata_force_spd_limit(link);
+        ata_force_link_limits(link);
        link->sata_spd_limit = link->hw_sata_spd_limit;
@@ -5783,9 +5793,10 @@ static void ata_port_detach(struct ata_port *ap)
        ata_port_wait_eh(ap);
        /* EH is now guaranteed to see UNLOADING - EH context belongs
-         * to us.  Disable all existing devices.
+         * to us.  Restore SControl and disable all existing devices.
         */
-        ata_port_for_each_link(link, ap) {
+        __ata_port_for_each_link(link, ap) {
+                sata_scr_write(link, SCR_CONTROL, link->saved_scontrol);
                ata_link_for_each_dev(dev, link)
                        ata_dev_disable(dev);
        }
@@ -5991,6 +6002,9 @@ static int __init ata_parse_force_one(char **cur,
                { "udma133",    .xfer_mask      = 1 << (ATA_SHIFT_UDMA + 6) },
                { "udma/133",   .xfer_mask      = 1 << (ATA_SHIFT_UDMA + 6) },
                { "udma7",      .xfer_mask      = 1 << (ATA_SHIFT_UDMA + 7) },
+                { "nohrst",     .lflags         = ATA_LFLAG_NO_HRST },
+                { "nosrst",     .lflags         = ATA_LFLAG_NO_SRST },
+                { "norst",      .lflags         = ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST },
        };
        char *start = *cur, *p = *cur;
        char *id, *val, *endp;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 58bdc538d229..c1db2f234d2e 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2040,7 +2040,7 @@ static void ata_eh_link_report(struct ata_link *link)
        }
        if (ehc->i.serror)
-                ata_port_printk(ap, KERN_ERR,
+                ata_link_printk(link, KERN_ERR,
                  "SError: { %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s}\n",
                  ehc->i.serror & SERR_DATA_RECOVERED ? "RecovData " : "",
                  ehc->i.serror & SERR_COMM_RECOVERED ? "RecovComm " : "",
@@ -2171,18 +2171,12 @@ static int ata_do_reset(struct ata_link *link, ata_reset_fn_t reset,
 }
 static int ata_eh_followup_srst_needed(struct ata_link *link,
-                                       int rc, int classify,
+                                       int rc, const unsigned int *classes)
-                                       const unsigned int *classes)
 {
        if ((link->flags & ATA_LFLAG_NO_SRST) || ata_link_offline(link))
                return 0;
-        if (rc == -EAGAIN) {
+        if (rc == -EAGAIN)
-                if (classify)
+                return 1;
-                        return 1;
-                rc = 0;
-        }
-        if (rc != 0)
-                return 0;
        if (sata_pmp_supported(link->ap) && ata_is_host_link(link))
                return 1;
        return 0;
@@ -2210,6 +2204,10 @@ int ata_eh_reset(struct ata_link *link, int classify,
         */
        while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX)
                max_tries++;
+        if (link->flags & ATA_LFLAG_NO_HRST)
+                hardreset = NULL;
+        if (link->flags & ATA_LFLAG_NO_SRST)
+                softreset = NULL;
        now = jiffies;
        deadline = ata_deadline(ehc->last_reset, ATA_EH_RESET_COOL_DOWN);
@@ -2247,10 +2245,10 @@ int ata_eh_reset(struct ata_link *link, int classify,
        ehc->i.action &= ~ATA_EH_RESET;
        if (hardreset) {
                reset = hardreset;
-                ehc->i.action = ATA_EH_HARDRESET;
+                ehc->i.action |= ATA_EH_HARDRESET;
        } else if (softreset) {
                reset = softreset;
-                ehc->i.action = ATA_EH_SOFTRESET;
+                ehc->i.action |= ATA_EH_SOFTRESET;
        }
        if (prereset) {
@@ -2305,9 +2303,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
                        ehc->i.flags |= ATA_EHI_DID_SOFTRESET;
                rc = ata_do_reset(link, reset, classes, deadline);
+                if (rc && rc != -EAGAIN)
+                        goto fail;
                if (reset == hardreset &&
-                    ata_eh_followup_srst_needed(link, rc, classify, classes)) {
+                    ata_eh_followup_srst_needed(link, rc, classes)) {
                        /* okay, let's do follow-up softreset */
                        reset = softreset;
@@ -2322,10 +2322,6 @@ int ata_eh_reset(struct ata_link *link, int classify,
                        ata_eh_about_to_do(link, NULL, ATA_EH_RESET);
                        rc = ata_do_reset(link, reset, classes, deadline);
                }
-                /* -EAGAIN can happen if we skipped followup SRST */
-                if (rc && rc != -EAGAIN)
-                        goto fail;
        } else {
                if (verbose)
                        ata_link_printk(link, KERN_INFO, "no reset method "
diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c
index fbe605711554..eb919c16a03e 100644
--- a/drivers/ata/pata_acpi.c
+++ b/drivers/ata/pata_acpi.c
@@ -181,7 +181,7 @@ static unsigned int pacpi_qc_issue(struct ata_queued_cmd *qc)
        if (adev != acpi->last) {
                pacpi_set_piomode(ap, adev);
-                if (adev->dma_mode)
+                if (ata_dma_enabled(adev))
                        pacpi_set_dmamode(ap, adev);
                acpi->last = adev;
        }
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index d7de7baf58a8..e8a0d99d7356 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -183,7 +183,7 @@ static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
        u16 tmp16;
        pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
-        if (adev->dma_mode >= XFER_UDMA_0)
+        if (ata_using_udma(adev))
                tmp16 |= (1 << dn);
        else
                tmp16 &= ~(1 << dn);
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index 744beebaaf49..0c4b271a9d5a 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -149,10 +149,10 @@ static unsigned int cs5530_qc_issue(struct ata_queued_cmd *qc)
        struct ata_device *prev = ap->private_data;
        /* See if the DMA settings could be wrong */
-        if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
+        if (ata_dma_enabled(adev) && adev != prev && prev != NULL) {
                /* Maybe, but do the channels match MWDMA/UDMA ? */
-                if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
+                if ((ata_using_udma(adev) && !ata_using_udma(prev)) ||
-                    (adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
+                    (ata_using_udma(prev) && !ata_using_udma(adev)))
                        /* Switch the mode bits */
                        cs5530_set_dmamode(ap, adev);
        }
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 27843c70eb9d..0221c9a46769 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -606,7 +606,7 @@ static void it821x_display_disk(int n, u8 *buf)
 {
        unsigned char id[41];
        int mode = 0;
-        char *mtype;
+        char *mtype = "";
        char mbuf[8];
        char *cbl = "(40 wire cable)";
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index e678af383d13..df64f2443001 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -198,7 +198,7 @@ static unsigned int oldpiix_qc_issue(struct ata_queued_cmd *qc)
        if (adev != ap->private_data) {
                oldpiix_set_piomode(ap, adev);
-                if (adev->dma_mode)
+                if (ata_dma_enabled(adev))
                        oldpiix_set_dmamode(ap, adev);
        }
        return ata_sff_qc_issue(qc);
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index cbab397e3db7..0278fd2b8fb1 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -167,10 +167,10 @@ static unsigned int sc1200_qc_issue(struct ata_queued_cmd *qc)
        struct ata_device *prev = ap->private_data;
        /* See if the DMA settings could be wrong */
-        if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
+        if (ata_dma_enabled(adev) && adev != prev && prev != NULL) {
                /* Maybe, but do the channels match MWDMA/UDMA ? */
-                if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
+                if ((ata_using_udma(adev) && !ata_using_udma(prev)) ||
-                    (adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
+                    (ata_using_udma(prev) && !ata_using_udma(adev)))
                        /* Switch the mode bits */
                        sc1200_set_dmamode(ap, adev);
        }
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 57d951b11f2d..8fdb2ce73210 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -324,62 +324,26 @@ static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 }
 /**
- *      via_ata_sff_tf_load - send taskfile registers to host controller
+ *      via_tf_load - send taskfile registers to host controller
 *      @ap: Port to which output is sent
 *      @tf: ATA taskfile register set
 *
 *      Outputs ATA taskfile to standard ATA host controller.
 *
 *      Note: This is to fix the internal bug of via chipsets, which
- *  will reset the device register after changing the IEN bit on
+ *      will reset the device register after changing the IEN bit on
- *  ctl register
+ *      ctl register
 */
-static void via_ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
+static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
 {
-        struct ata_ioports *ioaddr = &ap->ioaddr;
+        struct ata_taskfile tmp_tf;
-        unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
-        if (tf->ctl != ap->last_ctl) {
-                iowrite8(tf->ctl, ioaddr->ctl_addr);
-                iowrite8(tf->device, ioaddr->device_addr);
-                ap->last_ctl = tf->ctl;
-                ata_wait_idle(ap);
-        }
-        if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
-                iowrite8(tf->hob_feature, ioaddr->feature_addr);
-                iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
-                iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
-                iowrite8(tf->hob_lbam, ioaddr->lbam_addr);
-                iowrite8(tf->hob_lbah, ioaddr->lbah_addr);
-                VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
-                        tf->hob_feature,
-                        tf->hob_nsect,
-                        tf->hob_lbal,
-                        tf->hob_lbam,
-                        tf->hob_lbah);
-        }
-        if (is_addr) {
+        if (ap->ctl != ap->last_ctl && !(tf->flags & ATA_TFLAG_DEVICE)) {
-                iowrite8(tf->feature, ioaddr->feature_addr);
+                tmp_tf = *tf;
-                iowrite8(tf->nsect, ioaddr->nsect_addr);
+                tmp_tf.flags |= ATA_TFLAG_DEVICE;
-                iowrite8(tf->lbal, ioaddr->lbal_addr);
+                tf = &tmp_tf;
-                iowrite8(tf->lbam, ioaddr->lbam_addr);
-                iowrite8(tf->lbah, ioaddr->lbah_addr);
-                VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
-                        tf->feature,
-                        tf->nsect,
-                        tf->lbal,
-                        tf->lbam,
-                        tf->lbah);
        }
+        ata_sff_tf_load(ap, tf);
-        if (tf->flags & ATA_TFLAG_DEVICE) {
-                iowrite8(tf->device, ioaddr->device_addr);
-                VPRINTK("device 0x%X\n", tf->device);
-        }
-        ata_wait_idle(ap);
 }
 static struct scsi_host_template via_sht = {
@@ -392,13 +356,12 @@ static struct ata_port_operations via_port_ops = {
        .set_piomode    = via_set_piomode,
        .set_dmamode    = via_set_dmamode,
        .prereset       = via_pre_reset,
-        .sff_tf_load = via_ata_tf_load,
+        .sff_tf_load    = via_tf_load,
 };
 static struct ata_port_operations via_port_ops_noirq = {
        .inherits       = &via_port_ops,
        .sff_data_xfer  = ata_sff_data_xfer_noirq,
-        .sff_tf_load = via_ata_tf_load,
 };
 /**
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index ad169ffbc4cb..13c1d2af18ac 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1134,30 +1134,16 @@ static int mv_qc_defer(struct ata_queued_cmd *qc)
        if (ap->nr_active_links == 0)
                return 0;
-        if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) {
+        /*
-                /*
+         * The port is operating in host queuing mode (EDMA) with NCQ
-                 * The port is operating in host queuing mode (EDMA).
+         * enabled, allow multiple NCQ commands.  EDMA also allows
-                 * It can accomodate a new qc if the qc protocol
+         * queueing multiple DMA commands but libata core currently
-                 * is compatible with the current host queue mode.
+         * doesn't allow it.
-                 */
+         */
-                if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) {
+        if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) &&
-                        /*
+            (pp->pp_flags & MV_PP_FLAG_NCQ_EN) && ata_is_ncq(qc->tf.protocol))
-                         * The host queue (EDMA) is in NCQ mode.
+                return 0;
-                         * If the new qc is also an NCQ command,
-                         * then allow the new qc.
-                         */
-                        if (qc->tf.protocol == ATA_PROT_NCQ)
-                                return 0;
-                } else {
-                        /*
-                         * The host queue (EDMA) is in non-NCQ, DMA mode.
-                         * If the new qc is also a non-NCQ, DMA command,
-                         * then allow the new qc.
-                         */
-                        if (qc->tf.protocol == ATA_PROT_DMA)
-                                return 0;
-                }
-        }
        return ATA_DEFER_PORT;
 }
@@ -3036,7 +3022,8 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
                break;
        case chip_soc:
                hpriv->ops = &mv_soc_ops;
-                hp_flags |= MV_HP_FLAG_SOC | MV_HP_ERRATA_60X1C0;
+                hp_flags |= MV_HP_FLAG_SOC | MV_HP_GEN_IIE |
+                        MV_HP_ERRATA_60X1C0;
                break;
        default:
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 5667c2f02c51..cc5e28c8885c 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -295,6 +295,12 @@ int class_for_each_device(struct class *class, struct device *start,
        if (!class)
                return -EINVAL;
+        if (!class->p) {
+                WARN(1, "%s called for class '%s' before it was initialized",
+                     __func__, class->name);
+                return -EINVAL;
+        }
        mutex_lock(&class->p->class_mutex);
        list_for_each_entry(dev, &class->p->class_devices, node) {
                if (start) {
@@ -344,6 +350,11 @@ struct device *class_find_device(struct class *class, struct device *start,
        if (!class)
                return NULL;
+        if (!class->p) {
+                WARN(1, "%s called for class '%s' before it was initialized",
+                     __func__, class->name);
+                return NULL;
+        }
        mutex_lock(&class->p->class_mutex);
        list_for_each_entry(dev, &class->p->class_devices, node) {
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 068aa1c9538c..d021c98605b3 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -53,7 +53,7 @@ static inline int device_is_not_partition(struct device *dev)
 * it is attached to.  If it is not attached to a bus either, an empty
 * string will be returned.
 */
-const char *dev_driver_string(struct device *dev)
+const char *dev_driver_string(const struct device *dev)
 {
        return dev->driver ? dev->driver->name :
                        (dev->bus ? dev->bus->name :
@@ -541,6 +541,7 @@ void device_initialize(struct device *dev)
        spin_lock_init(&dev->devres_lock);
        INIT_LIST_HEAD(&dev->devres_head);
        device_init_wakeup(dev, 0);
+        device_pm_init(dev);
        set_dev_node(dev, -1);
 }
@@ -843,13 +844,19 @@ int device_add(struct device *dev)
 {
        struct device *parent = NULL;
        struct class_interface *class_intf;
-        int error;
+        int error = -EINVAL;
        dev = get_device(dev);
-        if (!dev || !strlen(dev->bus_id)) {
+        if (!dev)
-                error = -EINVAL;
+                goto done;
-                goto Done;
-        }
+        /* Temporarily support init_name if it is set.
+         * It will override bus_id for now */
+        if (dev->init_name)
+                dev_set_name(dev, "%s", dev->init_name);
+        if (!strlen(dev->bus_id))
+                goto done;
        pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
@@ -897,9 +904,10 @@ int device_add(struct device *dev)
        error = bus_add_device(dev);
        if (error)
                goto BusError;
-        error = device_pm_add(dev);
+        error = dpm_sysfs_add(dev);
        if (error)
-                goto PMError;
+                goto DPMError;
+        device_pm_add(dev);
        kobject_uevent(&dev->kobj, KOBJ_ADD);
        bus_attach_device(dev);
        if (parent)
@@ -917,10 +925,10 @@ int device_add(struct device *dev)
                                class_intf->add_dev(dev, class_intf);
                mutex_unlock(&dev->class->p->class_mutex);
        }
- Done:
+done:
        put_device(dev);
        return error;
- PMError:
+ DPMError:
        bus_remove_device(dev);
 BusError:
        if (dev->bus)
@@ -944,7 +952,7 @@ int device_add(struct device *dev)
        cleanup_device_parent(dev);
        if (parent)
                put_device(parent);
-        goto Done;
+        goto done;
 }
 /**
@@ -1007,6 +1015,7 @@ void device_del(struct device *dev)
        struct class_interface *class_intf;
        device_pm_remove(dev);
+        dpm_sysfs_remove(dev);
        if (parent)
                klist_del(&dev->knode_parent);
        if (MAJOR(dev->devt)) {
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 2ef5acf4368b..1e2bda780e48 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -16,9 +16,6 @@
 #include <linux/string.h>
 #include "base.h"
-#define to_dev(node) container_of(node, struct device, driver_list)
 static struct device *next_device(struct klist_iter *i)
 {
        struct klist_node *n = klist_next(i);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 3250c5257b74..273a944d4040 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -67,20 +67,16 @@ void device_pm_unlock(void)
 *      device_pm_add - add a device to the list of active devices
 *      @dev:   Device to be added to the list
 */
-int device_pm_add(struct device *dev)
+void device_pm_add(struct device *dev)
 {
-        int error;
        pr_debug("PM: Adding info for %s:%s\n",
                 dev->bus ? dev->bus->name : "No Bus",
                 kobject_name(&dev->kobj));
        mutex_lock(&dpm_list_mtx);
        if (dev->parent) {
-                if (dev->parent->power.status >= DPM_SUSPENDING) {
+                if (dev->parent->power.status >= DPM_SUSPENDING)
-                        dev_warn(dev, "parent %s is sleeping, will not add\n",
+                        dev_warn(dev, "parent %s should not be sleeping\n",
                                dev->parent->bus_id);
-                        WARN_ON(true);
-                }
        } else if (transition_started) {
                /*
                 * We refuse to register parentless devices while a PM
@@ -89,13 +85,9 @@ int device_pm_add(struct device *dev)
                 */
                WARN_ON(true);
        }
-        error = dpm_sysfs_add(dev);
-        if (!error) {
+        list_add_tail(&dev->power.entry, &dpm_list);
-                dev->power.status = DPM_ON;
-                list_add_tail(&dev->power.entry, &dpm_list);
-        }
        mutex_unlock(&dpm_list_mtx);
-        return error;
 }
 /**
@@ -110,7 +102,6 @@ void device_pm_remove(struct device *dev)
                 dev->bus ? dev->bus->name : "No Bus",
                 kobject_name(&dev->kobj));
        mutex_lock(&dpm_list_mtx);
-        dpm_sysfs_remove(dev);
        list_del_init(&dev->power.entry);
        mutex_unlock(&dpm_list_mtx);
 }
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index a3252c0e2887..41f51fae042f 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -1,3 +1,8 @@
+static inline void device_pm_init(struct device *dev)
+{
+        dev->power.status = DPM_ON;
+}
 #ifdef CONFIG_PM_SLEEP
 /*
@@ -11,12 +16,12 @@ static inline struct device *to_device(struct list_head *entry)
        return container_of(entry, struct device, power.entry);
 }
-extern int device_pm_add(struct device *);
+extern void device_pm_add(struct device *);
 extern void device_pm_remove(struct device *);
 #else /* CONFIG_PM_SLEEP */
-static inline int device_pm_add(struct device *dev) { return 0; }
+static inline void device_pm_add(struct device *dev) {}
 static inline void device_pm_remove(struct device *dev) {}
 #endif
diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c
index d90f5e9a54fa..9839e20119bc 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba7220.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c
@@ -1720,7 +1720,7 @@ static void ipath_7220_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr,
                                 "not 2KB aligned!\n", pa);
                        return;
                }
-                if (pa >= (1UL << IBA7220_TID_SZ_SHIFT)) {
+                if (chippa >= (1UL << IBA7220_TID_SZ_SHIFT)) {
                        ipath_dev_err(dd,
                                      "BUG: Physical page address 0x%lx "
                                      "larger than supported\n", pa);
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 36aa242c487c..729446f56aab 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -267,6 +267,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
        u16 lrh0;
        u16 lid;
        int ret = 0;
+        int next_cur;
        spin_lock_irqsave(&qp->s_lock, flags);
@@ -290,8 +291,9 @@ int ipath_make_ud_req(struct ipath_qp *qp)
                goto bail;
        wqe = get_swqe_ptr(qp, qp->s_cur);
-        if (++qp->s_cur >= qp->s_size)
+        next_cur = qp->s_cur + 1;
-                qp->s_cur = 0;
+        if (next_cur >= qp->s_size)
+                next_cur = 0;
        /* Construct the header. */
        ah_attr = &to_iah(wqe->wr.wr.ud.ah)->attr;
@@ -315,6 +317,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
                                qp->s_flags |= IPATH_S_WAIT_DMA;
                                goto bail;
                        }
+                        qp->s_cur = next_cur;
                        spin_unlock_irqrestore(&qp->s_lock, flags);
                        ipath_ud_loopback(qp, wqe);
                        spin_lock_irqsave(&qp->s_lock, flags);
@@ -323,6 +326,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
                }
        }
+        qp->s_cur = next_cur;
        extra_bytes = -wqe->length & 3;
        nwords = (wqe->length + extra_bytes) >> 2;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index f51201b17bfd..7e9e218738fa 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -156,14 +156,8 @@ static int ipoib_stop(struct net_device *dev)
        netif_stop_queue(dev);
-        /*
+        ipoib_ib_dev_down(dev, 0);
-         * Now flush workqueue to make sure a scheduled task doesn't
+        ipoib_ib_dev_stop(dev, 0);
-         * bring our internal state back up.
-         */
-        flush_workqueue(ipoib_workqueue);
-        ipoib_ib_dev_down(dev, 1);
-        ipoib_ib_dev_stop(dev, 1);
        if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
                struct ipoib_dev_priv *cpriv;
@@ -1314,7 +1308,7 @@ sysfs_failed:
 register_failed:
        ib_unregister_event_handler(&priv->event_handler);
-        flush_scheduled_work();
+        flush_workqueue(ipoib_workqueue);
 event_failed:
        ipoib_dev_cleanup(priv->dev);
@@ -1373,7 +1367,12 @@ static void ipoib_remove_one(struct ib_device *device)
        list_for_each_entry_safe(priv, tmp, dev_list, list) {
                ib_unregister_event_handler(&priv->event_handler);
-                flush_scheduled_work();
+                rtnl_lock();
+                dev_change_flags(priv->dev, priv->dev->flags & ~IFF_UP);
+                rtnl_unlock();
+                flush_workqueue(ipoib_workqueue);
                unregister_netdev(priv->dev);
                ipoib_dev_cleanup(priv->dev);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 8950e9546f4e..ac33c8f3ea85 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -392,8 +392,16 @@ static int ipoib_mcast_join_complete(int status,
                                           &priv->mcast_task, 0);
                mutex_unlock(&mcast_mutex);
-                if (mcast == priv->broadcast)
+                if (mcast == priv->broadcast) {
+                        /*
+                         * Take RTNL lock here to avoid racing with
+                         * ipoib_stop() and turning the carrier back
+                         * on while a device is being removed.
+                         */
+                        rtnl_lock();
                        netif_carrier_on(dev);
+                        rtnl_unlock();
+                }
                return 0;
        }
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 1b6c52ef7339..acb78017e7d0 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2333,13 +2333,11 @@ int dasd_generic_notify(struct ccw_device *cdev, int event)
 {
        struct dasd_device *device;
        struct dasd_ccw_req *cqr;
-        unsigned long flags;
        int ret;
-        device = dasd_device_from_cdev(cdev);
+        device = dasd_device_from_cdev_locked(cdev);
        if (IS_ERR(device))
                return 0;
-        spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
        ret = 0;
        switch (event) {
        case CIO_GONE:
@@ -2369,7 +2367,6 @@ int dasd_generic_notify(struct ccw_device *cdev, int event)
                ret = 1;
                break;
        }
-        spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
        dasd_put_device(device);
        return ret;
 }
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index 4bf0aa5112c1..2476f87d21d0 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -308,7 +308,7 @@ struct dasd_psf_prssd_data {
        unsigned char flags;
        unsigned char reserved[4];
        unsigned char suborder;
-        unsigned char varies[9];
+        unsigned char varies[5];
 } __attribute__ ((packed));
 /*
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index 29da4413ad43..bf512ac75b9e 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -16,6 +16,7 @@
 #include <linux/poll.h>
 #include <linux/mutex.h>
 #include <linux/smp_lock.h>
+#include <linux/err.h>
 #include <asm/uaccess.h>
 #include <asm/atomic.h>
@@ -457,7 +458,7 @@ int dasd_eer_enable(struct dasd_device *device)
        cqr = dasd_kmalloc_request("ECKD", 1 /* SNSS */,
                                   SNSS_DATA_SIZE, device);
-        if (!cqr)
+        if (IS_ERR(cqr))
                return -ENOMEM;
        cqr->startdev = device;
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 01fcdd91b846..db85f1fb131e 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -384,6 +384,10 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
         * get minor, add to list
         */
        down_write(&dcssblk_devices_sem);
+        if (dcssblk_get_segment_by_name(local_buf)) {
+                rc = -EEXIST;
+                goto release_gd;
+        }
        rc = dcssblk_assign_free_minor(dev_info);
        if (rc) {
                up_write(&dcssblk_devices_sem);
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 687720b552d1..be0ce2215c8d 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -109,7 +109,7 @@ tapechar_check_idalbuffer(struct tape_device *device, size_t block_size)
        /* The current idal buffer is not correct. Allocate a new one. */
        new = idal_buffer_alloc(block_size, 0);
-        if (new == NULL)
+        if (IS_ERR(new))
                return -ENOMEM;
        if (device->char_data.idal_buf != NULL)
diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c
index 2a1af4e60be0..cc8fd781ee22 100644
--- a/drivers/s390/char/tape_std.c
+++ b/drivers/s390/char/tape_std.c
@@ -248,7 +248,7 @@ tape_std_mtsetblk(struct tape_device *device, int count)
        /* Allocate a new idal buffer. */
        new = idal_buffer_alloc(count, 0);
-        if (new == NULL)
+        if (IS_ERR(new))
                return -ENOMEM;
        if (device->char_data.idal_buf != NULL)
                idal_buffer_free(device->char_data.idal_buf);
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 26a930e832bd..e0ce65fca4e7 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -112,8 +112,10 @@ ccwgroup_release (struct device *dev)
        gdev = to_ccwgroupdev(dev);
        for (i = 0; i < gdev->count; i++) {
-                dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
+                if (gdev->cdev[i]) {
-                put_device(&gdev->cdev[i]->dev);
+                        dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
+                        put_device(&gdev->cdev[i]->dev);
+                }
        }
        kfree(gdev);
 }
@@ -221,6 +223,13 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
        atomic_set(&gdev->onoff, 0);
        mutex_init(&gdev->reg_mutex);
        mutex_lock(&gdev->reg_mutex);
+        gdev->creator_id = creator_id;
+        gdev->count = num_devices;
+        gdev->dev.bus = &ccwgroup_bus_type;
+        gdev->dev.parent = root;
+        gdev->dev.release = ccwgroup_release;
+        device_initialize(&gdev->dev);
        curr_buf = buf;
        for (i = 0; i < num_devices && curr_buf; i++) {
                rc = __get_next_bus_id(&curr_buf, tmp_bus_id);
@@ -258,16 +267,11 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
                rc = -EINVAL;
                goto error;
        }
-        gdev->creator_id = creator_id;
-        gdev->count = num_devices;
-        gdev->dev.bus = &ccwgroup_bus_type;
-        gdev->dev.parent = root;
-        gdev->dev.release = ccwgroup_release;
        snprintf (gdev->dev.bus_id, BUS_ID_SIZE, "%s",
                        gdev->cdev[0]->dev.bus_id);
-        rc = device_register(&gdev->dev);
+        rc = device_add(&gdev->dev);
        if (rc)
                goto error;
        get_device(&gdev->dev);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 46c021d880dc..51489eff6b0b 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -477,7 +477,6 @@ void css_schedule_eval_all(void)
 void css_wait_for_slow_path(void)
 {
-        flush_workqueue(ccw_device_notify_work);
        flush_workqueue(slow_path_wq);
 }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e818d0c54c09..28221030b886 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -150,7 +150,6 @@ static struct css_driver io_subchannel_driver = {
 };
 struct workqueue_struct *ccw_device_work;
-struct workqueue_struct *ccw_device_notify_work;
 wait_queue_head_t ccw_device_init_wq;
 atomic_t ccw_device_init_count;
@@ -168,11 +167,6 @@ init_ccw_bus_type (void)
        ccw_device_work = create_singlethread_workqueue("cio");
        if (!ccw_device_work)
                return -ENOMEM; /* FIXME: better errno ? */
-        ccw_device_notify_work = create_singlethread_workqueue("cio_notify");
-        if (!ccw_device_notify_work) {
-                ret = -ENOMEM; /* FIXME: better errno ? */
-                goto out_err;
-        }
        slow_path_wq = create_singlethread_workqueue("kslowcrw");
        if (!slow_path_wq) {
                ret = -ENOMEM; /* FIXME: better errno ? */
@@ -192,8 +186,6 @@ init_ccw_bus_type (void)
 out_err:
        if (ccw_device_work)
                destroy_workqueue(ccw_device_work);
-        if (ccw_device_notify_work)
-                destroy_workqueue(ccw_device_notify_work);
        if (slow_path_wq)
                destroy_workqueue(slow_path_wq);
        return ret;
@@ -204,7 +196,6 @@ cleanup_ccw_bus_type (void)
 {
        css_driver_unregister(&io_subchannel_driver);
        bus_unregister(&ccw_bus_type);
-        destroy_workqueue(ccw_device_notify_work);
        destroy_workqueue(ccw_device_work);
 }
@@ -1496,11 +1487,22 @@ static void device_set_disconnected(struct ccw_device *cdev)
                ccw_device_schedule_recovery();
 }
+void ccw_device_set_notoper(struct ccw_device *cdev)
+{
+        struct subchannel *sch = to_subchannel(cdev->dev.parent);
+        CIO_TRACE_EVENT(2, "notoper");
+        CIO_TRACE_EVENT(2, sch->dev.bus_id);
+        ccw_device_set_timeout(cdev, 0);
+        cio_disable_subchannel(sch);
+        cdev->private->state = DEV_STATE_NOT_OPER;
+}
 static int io_subchannel_sch_event(struct subchannel *sch, int slow)
 {
        int event, ret, disc;
        unsigned long flags;
-        enum { NONE, UNREGISTER, UNREGISTER_PROBE, REPROBE } action;
+        enum { NONE, UNREGISTER, UNREGISTER_PROBE, REPROBE, DISC } action;
        struct ccw_device *cdev;
        spin_lock_irqsave(sch->lock, flags);
@@ -1535,16 +1537,11 @@ static int io_subchannel_sch_event(struct subchannel *sch, int slow)
                }
                /* fall through */
        case CIO_GONE:
-                /* Prevent unwanted effects when opening lock. */
-                cio_disable_subchannel(sch);
-                device_set_disconnected(cdev);
                /* Ask driver what to do with device. */
-                action = UNREGISTER;
+                if (io_subchannel_notify(sch, event))
-                spin_unlock_irqrestore(sch->lock, flags);
+                        action = DISC;
-                ret = io_subchannel_notify(sch, event);
+                else
-                spin_lock_irqsave(sch->lock, flags);
+                        action = UNREGISTER;
-                if (ret)
-                        action = NONE;
                break;
        case CIO_REVALIDATE:
                /* Device will be removed, so no notify necessary. */
@@ -1565,6 +1562,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int slow)
        switch (action) {
        case UNREGISTER:
        case UNREGISTER_PROBE:
+                ccw_device_set_notoper(cdev);
                /* Unregister device (will use subchannel lock). */
                spin_unlock_irqrestore(sch->lock, flags);
                css_sch_device_unregister(sch);
@@ -1577,6 +1575,9 @@ static int io_subchannel_sch_event(struct subchannel *sch, int slow)
        case REPROBE:
                ccw_device_trigger_reprobe(cdev);
                break;
+        case DISC:
+                device_set_disconnected(cdev);
+                break;
        default:
                break;
        }
@@ -1828,5 +1829,4 @@ EXPORT_SYMBOL(ccw_driver_unregister);
 EXPORT_SYMBOL(get_ccwdev_by_busid);
 EXPORT_SYMBOL(ccw_bus_type);
 EXPORT_SYMBOL(ccw_device_work);
-EXPORT_SYMBOL(ccw_device_notify_work);
 EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id);
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 9800a8335a3f..6f5c3f2b3587 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -72,7 +72,6 @@ dev_fsm_final_state(struct ccw_device *cdev)
 }
 extern struct workqueue_struct *ccw_device_work;
-extern struct workqueue_struct *ccw_device_notify_work;
 extern wait_queue_head_t ccw_device_init_wq;
 extern atomic_t ccw_device_init_count;
@@ -120,6 +119,7 @@ int ccw_device_stlck(struct ccw_device *);
 void ccw_device_trigger_reprobe(struct ccw_device *);
 void ccw_device_kill_io(struct ccw_device *);
 int ccw_device_notify(struct ccw_device *, int);
+void ccw_device_set_notoper(struct ccw_device *cdev);
 /* qdio needs this. */
 void ccw_device_set_timeout(struct ccw_device *, int);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 8b5fe57fb2f3..550508df952b 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -337,26 +337,34 @@ int ccw_device_notify(struct ccw_device *cdev, int event)
                return 0;
        if (!cdev->online)
                return 0;
+        CIO_MSG_EVENT(2, "notify called for 0.%x.%04x, event=%d\n",
+                      cdev->private->dev_id.ssid, cdev->private->dev_id.devno,
+                      event);
        return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0;
 }
-static void
+static void cmf_reenable_delayed(struct work_struct *work)
-ccw_device_oper_notify(struct work_struct *work)
 {
        struct ccw_device_private *priv;
        struct ccw_device *cdev;
-        int ret;
        priv = container_of(work, struct ccw_device_private, kick_work);
        cdev = priv->cdev;
-        ret = ccw_device_notify(cdev, CIO_OPER);
+        cmf_reenable(cdev);
-        if (ret) {
+}
+static void ccw_device_oper_notify(struct ccw_device *cdev)
+{
+        if (ccw_device_notify(cdev, CIO_OPER)) {
                /* Reenable channel measurements, if needed. */
-                cmf_reenable(cdev);
+                PREPARE_WORK(&cdev->private->kick_work, cmf_reenable_delayed);
-                wake_up(&cdev->private->wait_q);
+                queue_work(ccw_device_work, &cdev->private->kick_work);
-        } else
+                return;
-                /* Driver doesn't want device back. */
+        }
-                ccw_device_do_unreg_rereg(work);
+        /* Driver doesn't want device back. */
+        ccw_device_set_notoper(cdev);
+        PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unreg_rereg);
+        queue_work(ccw_device_work, &cdev->private->kick_work);
 }
 /*
@@ -386,8 +394,7 @@ ccw_device_done(struct ccw_device *cdev, int state)
        if (cdev->private->flags.donotify) {
                cdev->private->flags.donotify = 0;
-                PREPARE_WORK(&cdev->private->kick_work, ccw_device_oper_notify);
+                ccw_device_oper_notify(cdev);
-                queue_work(ccw_device_notify_work, &cdev->private->kick_work);
        }
        wake_up(&cdev->private->wait_q);
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index 8484b83698e1..5a4d85b829ad 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -61,18 +61,18 @@
 /* s390dbf views */
 #define QDIO_DBF_SETUP_LEN              8
-#define QDIO_DBF_SETUP_PAGES            4
+#define QDIO_DBF_SETUP_PAGES            8
 #define QDIO_DBF_SETUP_NR_AREAS         1
 #define QDIO_DBF_TRACE_LEN              8
 #define QDIO_DBF_TRACE_NR_AREAS         2
 #ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_TRACE_PAGES            16
+#define QDIO_DBF_TRACE_PAGES            32
 #define QDIO_DBF_SETUP_LEVEL            6
 #define QDIO_DBF_TRACE_LEVEL            4
 #else /* !CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_TRACE_PAGES            4
+#define QDIO_DBF_TRACE_PAGES            8
 #define QDIO_DBF_SETUP_LEVEL            2
 #define QDIO_DBF_TRACE_LEVEL            2
 #endif /* CONFIG_QDIO_DEBUG */
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index d15648514a0f..e6eabc853422 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -330,6 +330,7 @@ static int qdio_siga_output(struct qdio_q *q)
        int cc;
        u32 busy_bit;
        u64 start_time = 0;
+        char dbf_text[15];
        QDIO_DBF_TEXT5(0, trace, "sigaout");
        QDIO_DBF_HEX5(0, trace, &q, sizeof(void *));
@@ -338,6 +339,9 @@ static int qdio_siga_output(struct qdio_q *q)
 again:
        cc = qdio_do_siga_output(q, &busy_bit);
        if (queue_type(q) == QDIO_IQDIO_QFMT && cc == 2 && busy_bit) {
+                sprintf(dbf_text, "bb%4x%2x", q->irq_ptr->schid.sch_no, q->nr);
+                QDIO_DBF_TEXT3(0, trace, dbf_text);
                if (!start_time)
                        start_time = get_usecs();
                else if ((get_usecs() - start_time) < QDIO_BUSY_BIT_PATIENCE)
@@ -748,16 +752,18 @@ static void qdio_kick_outbound_q(struct qdio_q *q)
        rc = qdio_siga_output(q);
        switch (rc) {
        case 0:
-                /* went smooth this time, reset timestamp */
-                q->u.out.timestamp = 0;
                /* TODO: improve error handling for CC=0 case */
 #ifdef CONFIG_QDIO_DEBUG
-                QDIO_DBF_TEXT3(0, trace, "cc2reslv");
+                if (q->u.out.timestamp) {
-                sprintf(dbf_text, "%4x%2x%2x", q->irq_ptr->schid.sch_no, q->nr,
+                        QDIO_DBF_TEXT3(0, trace, "cc2reslv");
-                        atomic_read(&q->u.out.busy_siga_counter));
+                        sprintf(dbf_text, "%4x%2x%2x", q->irq_ptr->schid.sch_no,
-                QDIO_DBF_TEXT3(0, trace, dbf_text);
+                                q->nr,
+                                atomic_read(&q->u.out.busy_siga_counter));
+                        QDIO_DBF_TEXT3(0, trace, dbf_text);
+                }
 #endif /* CONFIG_QDIO_DEBUG */
+                /* went smooth this time, reset timestamp */
+                q->u.out.timestamp = 0;
                break;
        /* cc=2 and busy bit */
        case (2 | QDIO_ERROR_SIGA_BUSY):
@@ -1066,14 +1072,12 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
        if (IS_ERR(irb)) {
                switch (PTR_ERR(irb)) {
                case -EIO:
-                        sprintf(dbf_text, "ierr%4x",
+                        sprintf(dbf_text, "ierr%4x", irq_ptr->schid.sch_no);
-                                cdev->private->schid.sch_no);
                        QDIO_DBF_TEXT2(1, setup, dbf_text);
                        qdio_int_error(cdev);
                        return;
                case -ETIMEDOUT:
-                        sprintf(dbf_text, "qtoh%4x",
+                        sprintf(dbf_text, "qtoh%4x", irq_ptr->schid.sch_no);
-                                cdev->private->schid.sch_no);
                        QDIO_DBF_TEXT2(1, setup, dbf_text);
                        qdio_int_error(cdev);
                        return;
@@ -1124,8 +1128,10 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
 struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev)
 {
        struct qdio_irq *irq_ptr;
+        char dbf_text[15];
-        QDIO_DBF_TEXT0(0, setup, "getssqd");
+        sprintf(dbf_text, "qssq%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
@@ -1149,14 +1155,13 @@ int qdio_cleanup(struct ccw_device *cdev, int how)
        char dbf_text[15];
        int rc;
+        sprintf(dbf_text, "qcln%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
                return -ENODEV;
-        sprintf(dbf_text, "qcln%4x", irq_ptr->schid.sch_no);
-        QDIO_DBF_TEXT1(0, trace, dbf_text);
-        QDIO_DBF_TEXT0(0, setup, dbf_text);
        rc = qdio_shutdown(cdev, how);
        if (rc == 0)
                rc = qdio_free(cdev);
@@ -1191,6 +1196,9 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
        unsigned long flags;
        char dbf_text[15];
+        sprintf(dbf_text, "qshu%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
                return -ENODEV;
@@ -1205,10 +1213,6 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
                return 0;
        }
-        sprintf(dbf_text, "qsqs%4x", irq_ptr->schid.sch_no);
-        QDIO_DBF_TEXT1(0, trace, dbf_text);
-        QDIO_DBF_TEXT0(0, setup, dbf_text);
        tiqdio_remove_input_queues(irq_ptr);
        qdio_shutdown_queues(cdev);
        qdio_shutdown_debug_entries(irq_ptr, cdev);
@@ -1247,7 +1251,6 @@ no_cleanup:
        qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
        mutex_unlock(&irq_ptr->setup_mutex);
-        module_put(THIS_MODULE);
        if (rc)
                return rc;
        return 0;
@@ -1263,16 +1266,14 @@ int qdio_free(struct ccw_device *cdev)
        struct qdio_irq *irq_ptr;
        char dbf_text[15];
+        sprintf(dbf_text, "qfre%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
                return -ENODEV;
        mutex_lock(&irq_ptr->setup_mutex);
-        sprintf(dbf_text, "qfqs%4x", irq_ptr->schid.sch_no);
-        QDIO_DBF_TEXT1(0, trace, dbf_text);
-        QDIO_DBF_TEXT0(0, setup, dbf_text);
        cdev->private->qdio_data = NULL;
        mutex_unlock(&irq_ptr->setup_mutex);
@@ -1295,7 +1296,6 @@ int qdio_initialize(struct qdio_initialize *init_data)
        sprintf(dbf_text, "qini%4x", init_data->cdev->private->schid.sch_no);
        QDIO_DBF_TEXT0(0, setup, dbf_text);
-        QDIO_DBF_TEXT0(0, trace, dbf_text);
        rc = qdio_allocate(init_data);
        if (rc)
@@ -1319,7 +1319,6 @@ int qdio_allocate(struct qdio_initialize *init_data)
        sprintf(dbf_text, "qalc%4x", init_data->cdev->private->schid.sch_no);
        QDIO_DBF_TEXT0(0, setup, dbf_text);
-        QDIO_DBF_TEXT0(0, trace, dbf_text);
        if ((init_data->no_input_qs && !init_data->input_handler) ||
            (init_data->no_output_qs && !init_data->output_handler))
@@ -1389,6 +1388,9 @@ int qdio_establish(struct qdio_initialize *init_data)
        unsigned long saveflags;
        int rc;
+        sprintf(dbf_text, "qest%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
                return -ENODEV;
@@ -1396,13 +1398,6 @@ int qdio_establish(struct qdio_initialize *init_data)
        if (cdev->private->state != DEV_STATE_ONLINE)
                return -EINVAL;
-        if (!try_module_get(THIS_MODULE))
-                return -EINVAL;
-        sprintf(dbf_text, "qest%4x", cdev->private->schid.sch_no);
-        QDIO_DBF_TEXT0(0, setup, dbf_text);
-        QDIO_DBF_TEXT0(0, trace, dbf_text);
        mutex_lock(&irq_ptr->setup_mutex);
        qdio_setup_irq(init_data);
@@ -1472,6 +1467,9 @@ int qdio_activate(struct ccw_device *cdev)
        unsigned long saveflags;
        char dbf_text[20];
+        sprintf(dbf_text, "qact%4x", cdev->private->schid.sch_no);
+        QDIO_DBF_TEXT0(0, setup, dbf_text);
        irq_ptr = cdev->private->qdio_data;
        if (!irq_ptr)
                return -ENODEV;
@@ -1485,10 +1483,6 @@ int qdio_activate(struct ccw_device *cdev)
                goto out;
        }
-        sprintf(dbf_text, "qact%4x", irq_ptr->schid.sch_no);
-        QDIO_DBF_TEXT2(0, setup, dbf_text);
-        QDIO_DBF_TEXT2(0, trace, dbf_text);
        irq_ptr->ccw.cmd_code = irq_ptr->aqueue.cmd;
        irq_ptr->ccw.flags = CCW_FLAG_SLI;
        irq_ptr->ccw.count = irq_ptr->aqueue.count;
@@ -1663,7 +1657,7 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
 #ifdef CONFIG_QDIO_DEBUG
        char dbf_text[20];
-        sprintf(dbf_text, "doQD%04x", cdev->private->schid.sch_no);
+        sprintf(dbf_text, "doQD%4x", cdev->private->schid.sch_no);
        QDIO_DBF_TEXT3(0, trace, dbf_text);
 #endif /* CONFIG_QDIO_DEBUG */
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 1bd2a208db28..1679e2f91c94 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -165,7 +165,7 @@ static void setup_queues(struct qdio_irq *irq_ptr,
        void **output_sbal_array = qdio_init->output_sbal_addr_array;
        int i;
-        sprintf(dbf_text, "qfqs%4x", qdio_init->cdev->private->schid.sch_no);
+        sprintf(dbf_text, "qset%4x", qdio_init->cdev->private->schid.sch_no);
        QDIO_DBF_TEXT0(0, setup, dbf_text);
        for_each_input_queue(irq_ptr, q, i) {
@@ -285,7 +285,7 @@ void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
        rc = __get_ssqd_info(irq_ptr);
        if (rc) {
                QDIO_DBF_TEXT2(0, setup, "ssqdasig");
-                sprintf(dbf_text, "schno%x", irq_ptr->schid.sch_no);
+                sprintf(dbf_text, "schn%4x", irq_ptr->schid.sch_no);
                QDIO_DBF_TEXT2(0, setup, dbf_text);
                sprintf(dbf_text, "rc:%d", rc);
                QDIO_DBF_TEXT2(0, setup, dbf_text);
@@ -447,7 +447,7 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
 {
        char s[80];
-        sprintf(s, "%s ", cdev->dev.bus_id);
+        sprintf(s, "%s sc:%x ", cdev->dev.bus_id, irq_ptr->schid.sch_no);
        switch (irq_ptr->qib.qfmt) {
        case QDIO_QETH_QFMT:
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 9291a771d812..ea7f61400267 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -113,7 +113,11 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
        struct qdio_q *q;
        int i;
-        for_each_input_queue(irq_ptr, q, i) {
+        for (i = 0; i < irq_ptr->nr_input_qs; i++) {
+                q = irq_ptr->input_qs[i];
+                /* if establish triggered an error */
+                if (!q || !q->entry.prev || !q->entry.next)
+                        continue;
                list_del_rcu(&q->entry);
                synchronize_rcu();
        }
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index 2e9079df26b3..4190be64917f 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -33,6 +33,19 @@ config UIO_PDRV
          If you don't know what to do here, say N.
+config UIO_PDRV_GENIRQ
+        tristate "Userspace I/O platform driver with generic IRQ handling"
+        help
+          Platform driver for Userspace I/O devices, including generic
+          interrupt handling code. Shared interrupts are not supported.
+          This kernel driver requires that the matching userspace driver
+          handles interrupts in a special way. Userspace is responsible
+          for acknowledging the hardware device if needed, and re-enabling
+          interrupts in the interrupt controller using the write() syscall.
+          If you don't know what to do here, say N.
 config UIO_SMX
        tristate "SMX cryptengine UIO interface"
        default n
diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile
index e00ce0def1a0..8667bbdef904 100644
--- a/drivers/uio/Makefile
+++ b/drivers/uio/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_UIO)       += uio.o
 obj-$(CONFIG_UIO_CIF)   += uio_cif.o
 obj-$(CONFIG_UIO_PDRV)  += uio_pdrv.o
+obj-$(CONFIG_UIO_PDRV_GENIRQ)   += uio_pdrv_genirq.o
 obj-$(CONFIG_UIO_SMX)   += uio_smx.o
diff --git a/drivers/uio/uio_pdrv.c b/drivers/uio/uio_pdrv.c
index 5d0d2e85d982..0b4ef39cd85d 100644
--- a/drivers/uio/uio_pdrv.c
+++ b/drivers/uio/uio_pdrv.c
@@ -88,6 +88,8 @@ static int uio_pdrv_remove(struct platform_device *pdev)
        uio_unregister_device(pdata->uioinfo);
+        kfree(pdata);
        return 0;
 }
@@ -114,5 +116,5 @@ module_exit(uio_pdrv_exit);
 MODULE_AUTHOR("Uwe Kleine-Koenig");
 MODULE_DESCRIPTION("Userspace I/O platform driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
new file mode 100644
index 000000000000..1f82c83a92ae
--- /dev/null
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -0,0 +1,188 @@
+/*
+ * drivers/uio/uio_pdrv_genirq.c
+ *
+ * Userspace I/O platform driver with generic IRQ handling code.
+ *
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on uio_pdrv.c by Uwe Kleine-Koenig,
+ * Copyright (C) 2008 by Digi International Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/platform_device.h>
+#include <linux/uio_driver.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/stringify.h>
+#define DRIVER_NAME "uio_pdrv_genirq"
+struct uio_pdrv_genirq_platdata {
+        struct uio_info *uioinfo;
+        spinlock_t lock;
+        unsigned long flags;
+};
+static irqreturn_t uio_pdrv_genirq_handler(int irq, struct uio_info *dev_info)
+{
+        struct uio_pdrv_genirq_platdata *priv = dev_info->priv;
+        /* Just disable the interrupt in the interrupt controller, and
+         * remember the state so we can allow user space to enable it later.
+         */
+        if (!test_and_set_bit(0, &priv->flags))
+                disable_irq_nosync(irq);
+        return IRQ_HANDLED;
+}
+static int uio_pdrv_genirq_irqcontrol(struct uio_info *dev_info, s32 irq_on)
+{
+        struct uio_pdrv_genirq_platdata *priv = dev_info->priv;
+        unsigned long flags;
+        /* Allow user space to enable and disable the interrupt
+         * in the interrupt controller, but keep track of the
+         * state to prevent per-irq depth damage.
+         *
+         * Serialize this operation to support multiple tasks.
+         */
+        spin_lock_irqsave(&priv->lock, flags);
+        if (irq_on) {
+                if (test_and_clear_bit(0, &priv->flags))
+                        enable_irq(dev_info->irq);
+        } else {
+                if (!test_and_set_bit(0, &priv->flags))
+                        disable_irq(dev_info->irq);
+        }
+        spin_unlock_irqrestore(&priv->lock, flags);
+        return 0;
+}
+static int uio_pdrv_genirq_probe(struct platform_device *pdev)
+{
+        struct uio_info *uioinfo = pdev->dev.platform_data;
+        struct uio_pdrv_genirq_platdata *priv;
+        struct uio_mem *uiomem;
+        int ret = -EINVAL;
+        int i;
+        if (!uioinfo || !uioinfo->name || !uioinfo->version) {
+                dev_err(&pdev->dev, "missing platform_data\n");
+                goto bad0;
+        }
+        if (uioinfo->handler || uioinfo->irqcontrol || uioinfo->irq_flags) {
+                dev_err(&pdev->dev, "interrupt configuration error\n");
+                goto bad0;
+        }
+        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+        if (!priv) {
+                ret = -ENOMEM;
+                dev_err(&pdev->dev, "unable to kmalloc\n");
+                goto bad0;
+        }
+        priv->uioinfo = uioinfo;
+        spin_lock_init(&priv->lock);
+        priv->flags = 0; /* interrupt is enabled to begin with */
+        uiomem = &uioinfo->mem[0];
+        for (i = 0; i < pdev->num_resources; ++i) {
+                struct resource *r = &pdev->resource[i];
+                if (r->flags != IORESOURCE_MEM)
+                        continue;
+                if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) {
+                        dev_warn(&pdev->dev, "device has more than "
+                                        __stringify(MAX_UIO_MAPS)
+                                        " I/O memory resources.\n");
+                        break;
+                }
+                uiomem->memtype = UIO_MEM_PHYS;
+                uiomem->addr = r->start;
+                uiomem->size = r->end - r->start + 1;
+                ++uiomem;
+        }
+        while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) {
+                uiomem->size = 0;
+                ++uiomem;
+        }
+        /* This driver requires no hardware specific kernel code to handle
+         * interrupts. Instead, the interrupt handler simply disables the
+         * interrupt in the interrupt controller. User space is responsible
+         * for performing hardware specific acknowledge and re-enabling of
+         * the interrupt in the interrupt controller.
+         *
+         * Interrupt sharing is not supported.
+         */
+        uioinfo->irq_flags = IRQF_DISABLED;
+        uioinfo->handler = uio_pdrv_genirq_handler;
+        uioinfo->irqcontrol = uio_pdrv_genirq_irqcontrol;
+        uioinfo->priv = priv;
+        ret = uio_register_device(&pdev->dev, priv->uioinfo);
+        if (ret) {
+                dev_err(&pdev->dev, "unable to register uio device\n");
+                goto bad1;
+        }
+        platform_set_drvdata(pdev, priv);
+        return 0;
+ bad1:
+        kfree(priv);
+ bad0:
+        return ret;
+}
+static int uio_pdrv_genirq_remove(struct platform_device *pdev)
+{
+        struct uio_pdrv_genirq_platdata *priv = platform_get_drvdata(pdev);
+        uio_unregister_device(priv->uioinfo);
+        kfree(priv);
+        return 0;
+}
+static struct platform_driver uio_pdrv_genirq = {
+        .probe = uio_pdrv_genirq_probe,
+        .remove = uio_pdrv_genirq_remove,
+        .driver = {
+                .name = DRIVER_NAME,
+                .owner = THIS_MODULE,
+        },
+};
+static int __init uio_pdrv_genirq_init(void)
+{
+        return platform_driver_register(&uio_pdrv_genirq);
+}
+static void __exit uio_pdrv_genirq_exit(void)
+{
+        platform_driver_unregister(&uio_pdrv_genirq);
+}
+module_init(uio_pdrv_genirq_init);
+module_exit(uio_pdrv_genirq_exit);
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("Userspace I/O platform driver with generic IRQ handling");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index efc4373ededb..c257453fa9de 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -589,8 +589,8 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
        tasklet_schedule(&acm->urb_task);
 done:
-err_out:
        mutex_unlock(&acm->mutex);
+err_out:
        mutex_unlock(&open_mutex);
        return rv;
@@ -1362,6 +1362,9 @@ static struct usb_device_id acm_ids[] = {
        { USB_DEVICE(0x0803, 0x3095), /* Zoom Telephonics Model 3095F USB MODEM */
        .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
        },
+        { USB_DEVICE(0x0572, 0x1321), /* Conexant USB MODEM CX93010 */
+        .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+        },
        /* control interfaces with various AT-command sets */
        { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 2be37fe466f2..5a7fa6f09958 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -230,6 +230,13 @@ static int usb_probe_interface(struct device *dev)
                 */
                intf->pm_usage_cnt = !(driver->supports_autosuspend);
+                /* Carry out a deferred switch to altsetting 0 */
+                if (intf->needs_altsetting0) {
+                        usb_set_interface(udev, intf->altsetting[0].
+                                        desc.bInterfaceNumber, 0);
+                        intf->needs_altsetting0 = 0;
+                }
                error = driver->probe(intf, id);
                if (error) {
                        mark_quiesced(intf);
@@ -266,8 +273,17 @@ static int usb_unbind_interface(struct device *dev)
        driver->disconnect(intf);
-        /* reset other interface state */
+        /* Reset other interface state.
-        usb_set_interface(udev, intf->altsetting[0].desc.bInterfaceNumber, 0);
+         * We cannot do a Set-Interface if the device is suspended or
+         * if it is prepared for a system sleep (since installing a new
+         * altsetting means creating new endpoint device entries).
+         * When either of these happens, defer the Set-Interface.
+         */
+        if (!error && intf->dev.power.status == DPM_ON)
+                usb_set_interface(udev, intf->altsetting[0].
+                                desc.bInterfaceNumber, 0);
+        else
+                intf->needs_altsetting0 = 1;
        usb_set_intfdata(intf, NULL);
        intf->condition = USB_INTERFACE_UNBOUND;
@@ -798,7 +814,8 @@ void usb_forced_unbind_intf(struct usb_interface *intf)
 * The caller must hold @intf's device's lock, but not its pm_mutex
 * and not @intf->dev.sem.
 *
- * FIXME: The caller must block system sleep transitions.
+ * Note: Rebinds will be skipped if a system sleep transition is in
+ * progress and the PM "complete" callback hasn't occurred yet.
 */
 void usb_rebind_intf(struct usb_interface *intf)
 {
@@ -814,10 +831,12 @@ void usb_rebind_intf(struct usb_interface *intf)
        }
        /* Try to rebind the interface */
-        intf->needs_binding = 0;
+        if (intf->dev.power.status == DPM_ON) {
-        rc = device_attach(&intf->dev);
+                intf->needs_binding = 0;
-        if (rc < 0)
+                rc = device_attach(&intf->dev);
-                dev_warn(&intf->dev, "rebind failed: %d\n", rc);
+                if (rc < 0)
+                        dev_warn(&intf->dev, "rebind failed: %d\n", rc);
+        }
 }
 #ifdef CONFIG_PM
@@ -829,7 +848,6 @@ void usb_rebind_intf(struct usb_interface *intf)
 * or rebind interfaces that have been unbound, according to @action.
 *
 * The caller must hold @udev's device lock.
- * FIXME: For rebinds, the caller must block system sleep transitions.
 */
 static void do_unbind_rebind(struct usb_device *udev, int action)
 {
@@ -851,22 +869,8 @@ static void do_unbind_rebind(struct usb_device *udev, int action)
                                }
                                break;
                        case DO_REBIND:
-                                if (intf->needs_binding) {
+                                if (intf->needs_binding)
-        /* FIXME: The next line is needed because we are going to probe
-         * the interface, but as far as the PM core is concerned the
-         * interface is still suspended.  The problem wouldn't exist
-         * if we could rebind the interface during the interface's own
-         * resume() call, but at the time the usb_device isn't locked!
-         *
-         * The real solution will be to carry this out during the device's
-         * complete() callback.  Until that is implemented, we have to
-         * use this hack.
-         */
-//                                      intf->dev.power.sleeping = 0;
                                        usb_rebind_intf(intf);
-                                }
                                break;
                        }
                }
@@ -926,14 +930,14 @@ static int usb_resume_device(struct usb_device *udev)
 }
 /* Caller has locked intf's usb_device's pm mutex */
-static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
+static int usb_suspend_interface(struct usb_device *udev,
+                struct usb_interface *intf, pm_message_t msg)
 {
        struct usb_driver       *driver;
        int                     status = 0;
        /* with no hardware, USB interfaces only use FREEZE and ON states */
-        if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED ||
+        if (udev->state == USB_STATE_NOTATTACHED || !is_active(intf))
-                        !is_active(intf))
                goto done;
        if (intf->condition == USB_INTERFACE_UNBOUND)   /* This can't happen */
@@ -944,7 +948,7 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
                status = driver->suspend(intf, msg);
                if (status == 0)
                        mark_quiesced(intf);
-                else if (!interface_to_usbdev(intf)->auto_pm)
+                else if (!udev->auto_pm)
                        dev_err(&intf->dev, "%s error %d\n",
                                        "suspend", status);
        } else {
@@ -961,13 +965,13 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
 }
 /* Caller has locked intf's usb_device's pm_mutex */
-static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
+static int usb_resume_interface(struct usb_device *udev,
+                struct usb_interface *intf, int reset_resume)
 {
        struct usb_driver       *driver;
        int                     status = 0;
-        if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED ||
+        if (udev->state == USB_STATE_NOTATTACHED || is_active(intf))
-                        is_active(intf))
                goto done;
        /* Don't let autoresume interfere with unbinding */
@@ -975,8 +979,17 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
                goto done;
        /* Can't resume it if it doesn't have a driver. */
-        if (intf->condition == USB_INTERFACE_UNBOUND)
+        if (intf->condition == USB_INTERFACE_UNBOUND) {
+                /* Carry out a deferred switch to altsetting 0 */
+                if (intf->needs_altsetting0 &&
+                                intf->dev.power.status == DPM_ON) {
+                        usb_set_interface(udev, intf->altsetting[0].
+                                        desc.bInterfaceNumber, 0);
+                        intf->needs_altsetting0 = 0;
+                }
                goto done;
+        }
        /* Don't resume if the interface is marked for rebinding */
        if (intf->needs_binding)
@@ -1151,7 +1164,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
        if (udev->actconfig) {
                for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                        status = usb_suspend_interface(intf, msg);
+                        status = usb_suspend_interface(udev, intf, msg);
                        if (status != 0)
                                break;
                }
@@ -1163,7 +1176,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
        if (status != 0) {
                while (--i >= 0) {
                        intf = udev->actconfig->interface[i];
-                        usb_resume_interface(intf, 0);
+                        usb_resume_interface(udev, intf, 0);
                }
                /* Try another autosuspend when the interfaces aren't busy */
@@ -1276,7 +1289,7 @@ static int usb_resume_both(struct usb_device *udev)
        if (status == 0 && udev->actconfig) {
                for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                        usb_resume_interface(intf, udev->reset_resume);
+                        usb_resume_interface(udev, intf, udev->reset_resume);
                }
        }
@@ -1605,12 +1618,10 @@ int usb_external_resume_device(struct usb_device *udev)
        return status;
 }
-static int usb_suspend(struct device *dev, pm_message_t message)
+int usb_suspend(struct device *dev, pm_message_t message)
 {
        struct usb_device       *udev;
-        if (!is_usb_device(dev))        /* Ignore PM for interfaces */
-                return 0;
        udev = to_usb_device(dev);
        /* If udev is already suspended, we can skip this suspend and
@@ -1629,12 +1640,10 @@ static int usb_suspend(struct device *dev, pm_message_t message)
        return usb_external_suspend_device(udev, message);
 }
-static int usb_resume(struct device *dev)
+int usb_resume(struct device *dev)
 {
        struct usb_device       *udev;
-        if (!is_usb_device(dev))        /* Ignore PM for interfaces */
-                return 0;
        udev = to_usb_device(dev);
        /* If udev->skip_sys_resume is set then udev was already suspended
@@ -1646,17 +1655,10 @@ static int usb_resume(struct device *dev)
        return usb_external_resume_device(udev);
 }
-#else
-#define usb_suspend     NULL
-#define usb_resume      NULL
 #endif /* CONFIG_PM */
 struct bus_type usb_bus_type = {
        .name =         "usb",
        .match =        usb_device_match,
        .uevent =       usb_uevent,
-        .suspend =      usb_suspend,
-        .resume =       usb_resume,
 };
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index f7bfd72ef115..8abd4e59bf4a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -924,15 +924,6 @@ static int register_root_hub(struct usb_hcd *hcd)
        return retval;
 }
-void usb_enable_root_hub_irq (struct usb_bus *bus)
-{
-        struct usb_hcd *hcd;
-        hcd = container_of (bus, struct usb_hcd, self);
-        if (hcd->driver->hub_irq_enable && hcd->state != HC_STATE_HALT)
-                hcd->driver->hub_irq_enable (hcd);
-}
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 5b0b59b0d89b..e710ce04e228 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -212,8 +212,6 @@ struct hc_driver {
        int     (*bus_suspend)(struct usb_hcd *);
        int     (*bus_resume)(struct usb_hcd *);
        int     (*start_port_reset)(struct usb_hcd *, unsigned port_num);
-        void    (*hub_irq_enable)(struct usb_hcd *);
-                /* Needed only if port-change IRQs are level-triggered */
                /* force handover of high-speed port to full-speed companion */
        void    (*relinquish_port)(struct usb_hcd *, int);
@@ -379,8 +377,6 @@ extern struct list_head usb_bus_list;
 extern struct mutex usb_bus_list_lock;
 extern wait_queue_head_t usb_kill_urb_queue;
-extern void usb_enable_root_hub_irq(struct usb_bus *bus);
 extern int usb_find_interface_driver(struct usb_device *dev,
        struct usb_interface *interface);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 107e1d25ddec..6a5cb018383d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2102,8 +2102,6 @@ int usb_port_resume(struct usb_device *udev)
        }
        clear_bit(port1, hub->busy_bits);
-        if (!hub->hdev->parent && !hub->busy_bits[0])
-                usb_enable_root_hub_irq(hub->hdev->bus);
        status = check_port_resume_type(udev,
                        hub, port1, status, portchange, portstatus);
@@ -3081,11 +3079,6 @@ static void hub_events(void)
                        }
                }
-                /* If this is a root hub, tell the HCD it's okay to
-                 * re-enable port-change interrupts now. */
-                if (!hdev->parent && !hub->busy_bits[0])
-                        usb_enable_root_hub_irq(hdev->bus);
 loop_autopm:
                /* Allow autosuspend if we're not going to run again */
                if (list_empty(&hub->event_list))
@@ -3311,8 +3304,6 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
                        break;
        }
        clear_bit(port1, parent_hub->busy_bits);
-        if (!parent_hdev->parent && !parent_hub->busy_bits[0])
-                usb_enable_root_hub_irq(parent_hdev->bus);
        if (ret < 0)
                goto re_enumerate;
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index c0b1ae25ae2a..47111e88f791 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -601,15 +601,20 @@ EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs);
 void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
 {
        struct urb *victim;
+        unsigned long flags;
-        spin_lock_irq(&anchor->lock);
+        spin_lock_irqsave(&anchor->lock, flags);
        while (!list_empty(&anchor->urb_list)) {
                victim = list_entry(anchor->urb_list.prev, struct urb,
                                    anchor_list);
+                usb_get_urb(victim);
+                spin_unlock_irqrestore(&anchor->lock, flags);
                /* this will unanchor the URB */
                usb_unlink_urb(victim);
+                usb_put_urb(victim);
+                spin_lock_irqsave(&anchor->lock, flags);
        }
-        spin_unlock_irq(&anchor->lock);
+        spin_unlock_irqrestore(&anchor->lock, flags);
 }
 EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 84fcaa6a21ec..be1fa0723f2c 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -219,12 +219,6 @@ static int usb_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
 }
 #endif  /* CONFIG_HOTPLUG */
-struct device_type usb_device_type = {
-        .name =         "usb_device",
-        .release =      usb_release_dev,
-        .uevent =       usb_dev_uevent,
-};
 #ifdef  CONFIG_PM
 static int ksuspend_usb_init(void)
@@ -244,13 +238,80 @@ static void ksuspend_usb_cleanup(void)
        destroy_workqueue(ksuspend_usb_wq);
 }
+/* USB device Power-Management thunks.
+ * There's no need to distinguish here between quiescing a USB device
+ * and powering it down; the generic_suspend() routine takes care of
+ * it by skipping the usb_port_suspend() call for a quiesce.  And for
+ * USB interfaces there's no difference at all.
+ */
+static int usb_dev_prepare(struct device *dev)
+{
+        return 0;               /* Implement eventually? */
+}
+static void usb_dev_complete(struct device *dev)
+{
+        /* Currently used only for rebinding interfaces */
+        usb_resume(dev);        /* Implement eventually? */
+}
+static int usb_dev_suspend(struct device *dev)
+{
+        return usb_suspend(dev, PMSG_SUSPEND);
+}
+static int usb_dev_resume(struct device *dev)
+{
+        return usb_resume(dev);
+}
+static int usb_dev_freeze(struct device *dev)
+{
+        return usb_suspend(dev, PMSG_FREEZE);
+}
+static int usb_dev_thaw(struct device *dev)
+{
+        return usb_resume(dev);
+}
+static int usb_dev_poweroff(struct device *dev)
+{
+        return usb_suspend(dev, PMSG_HIBERNATE);
+}
+static int usb_dev_restore(struct device *dev)
+{
+        return usb_resume(dev);
+}
+static struct pm_ops usb_device_pm_ops = {
+        .prepare =      usb_dev_prepare,
+        .complete =     usb_dev_complete,
+        .suspend =      usb_dev_suspend,
+        .resume =       usb_dev_resume,
+        .freeze =       usb_dev_freeze,
+        .thaw =         usb_dev_thaw,
+        .poweroff =     usb_dev_poweroff,
+        .restore =      usb_dev_restore,
+};
 #else
 #define ksuspend_usb_init()     0
 #define ksuspend_usb_cleanup()  do {} while (0)
+#define usb_device_pm_ops       (*(struct pm_ops *)0)
 #endif  /* CONFIG_PM */
+struct device_type usb_device_type = {
+        .name =         "usb_device",
+        .release =      usb_release_dev,
+        .uevent =       usb_dev_uevent,
+        .pm =           &usb_device_pm_ops,
+};
 /* Returns 1 if @usb_bus is WUSB, 0 otherwise */
 static unsigned usb_bus_is_wusb(struct usb_bus *bus)
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index d9a6e16dbf84..9a1a45ac3add 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -41,6 +41,9 @@ extern void usb_host_cleanup(void);
 #ifdef  CONFIG_PM
+extern int usb_suspend(struct device *dev, pm_message_t msg);
+extern int usb_resume(struct device *dev);
 extern void usb_autosuspend_work(struct work_struct *work);
 extern int usb_port_suspend(struct usb_device *dev);
 extern int usb_port_resume(struct usb_device *dev);
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index a28513ecbe5b..7cbc78a6853d 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1622,7 +1622,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
        struct pxa_udc *udc = the_controller;
        int retval;
-        if (!driver || driver->speed != USB_SPEED_FULL || !driver->bind
+        if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind
                        || !driver->disconnect || !driver->setup)
                return -EINVAL;
        if (!udc)
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index d22a84f86a33..8017f1cf78e2 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -988,7 +988,7 @@ static void do_atl_int(struct usb_hcd *usb_hcd)
                /*
                 * write bank1 address twice to ensure the 90ns delay (time
                 * between BANK0 write and the priv_read_copy() call is at
-                 * least 3*t_WHWL + 2*t_w11 = 3*25ns + 2*17ns = 92ns)
+                 * least 3*t_WHWL + 2*t_w11 = 3*25ns + 2*17ns = 109ns)
                 */
                isp1760_writel(payload  + ISP_BANK(1), usb_hcd->regs +
                                HC_MEMORY_REG);
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 6db7a2889e66..4ed228a89943 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -260,7 +260,6 @@ static const struct hc_driver ohci_at91_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c
index c0948008fe3d..2ac4e022a13f 100644
--- a/drivers/usb/host/ohci-au1xxx.c
+++ b/drivers/usb/host/ohci-au1xxx.c
@@ -163,7 +163,6 @@ static const struct hc_driver ohci_au1xxx_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index cb0b506f8259..fb3055f084b5 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -134,7 +134,6 @@ static struct hc_driver ohci_ep93xx_hc_driver = {
        .get_frame_number       = ohci_get_frame,
        .hub_status_data        = ohci_hub_status_data,
        .hub_control            = ohci_hub_control,
-        .hub_irq_enable         = ohci_rhsc_enable,
 #ifdef CONFIG_PM
        .bus_suspend            = ohci_bus_suspend,
        .bus_resume             = ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 439beb784f3e..7ea9a7b31155 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -36,18 +36,6 @@
 /*-------------------------------------------------------------------------*/
-/* hcd->hub_irq_enable() */
-static void ohci_rhsc_enable (struct usb_hcd *hcd)
-{
-        struct ohci_hcd         *ohci = hcd_to_ohci (hcd);
-        spin_lock_irq(&ohci->lock);
-        if (!ohci->autostop)
-                del_timer(&hcd->rh_timer);      /* Prevent next poll */
-        ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable);
-        spin_unlock_irq(&ohci->lock);
-}
 #define OHCI_SCHED_ENABLES \
        (OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE)
@@ -374,18 +362,28 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
                int any_connected)
 {
        int     poll_rh = 1;
+        int     rhsc;
+        rhsc = ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC;
        switch (ohci->hc_control & OHCI_CTRL_HCFS) {
        case OHCI_USB_OPER:
-                /* keep on polling until we know a device is connected
+                /* If no status changes are pending, enable status-change
-                 * and RHSC is enabled */
+                 * interrupts.
+                 */
+                if (!rhsc && !changed) {
+                        rhsc = OHCI_INTR_RHSC;
+                        ohci_writel(ohci, rhsc, &ohci->regs->intrenable);
+                }
+                /* Keep on polling until we know a device is connected
+                 * and RHSC is enabled, or until we autostop.
+                 */
                if (!ohci->autostop) {
                        if (any_connected ||
                                        !device_may_wakeup(&ohci_to_hcd(ohci)
                                                ->self.root_hub->dev)) {
-                                if (ohci_readl(ohci, &ohci->regs->intrenable) &
+                                if (rhsc)
-                                                OHCI_INTR_RHSC)
                                        poll_rh = 0;
                        } else {
                                ohci->autostop = 1;
@@ -398,12 +396,13 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
                                ohci->autostop = 0;
                                ohci->next_statechange = jiffies +
                                                STATECHANGE_DELAY;
-                        } else if (time_after_eq(jiffies,
+                        } else if (rhsc && time_after_eq(jiffies,
                                                ohci->next_statechange)
                                        && !ohci->ed_rm_list
                                        && !(ohci->hc_control &
                                                OHCI_SCHED_ENABLES)) {
                                ohci_rh_suspend(ohci, 1);
+                                poll_rh = 0;
                        }
                }
                break;
@@ -417,6 +416,12 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
                        else
                                usb_hcd_resume_root_hub(ohci_to_hcd(ohci));
                } else {
+                        if (!rhsc && (ohci->autostop ||
+                                        ohci_to_hcd(ohci)->self.root_hub->
+                                                do_remote_wakeup))
+                                ohci_writel(ohci, OHCI_INTR_RHSC,
+                                                &ohci->regs->intrenable);
                        /* everything is idle, no need for polling */
                        poll_rh = 0;
                }
@@ -438,12 +443,16 @@ static inline int ohci_rh_resume(struct ohci_hcd *ohci)
 static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
                int any_connected)
 {
-        int     poll_rh = 1;
+        /* If RHSC is enabled, don't poll */
-        /* keep on polling until RHSC is enabled */
        if (ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC)
-                poll_rh = 0;
+                return 0;
-        return poll_rh;
+        /* If no status changes are pending, enable status-change interrupts */
+        if (!changed) {
+                ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable);
+                return 0;
+        }
+        return 1;
 }
 #endif  /* CONFIG_PM */
diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c
index 9e31d440d115..de42283149c7 100644
--- a/drivers/usb/host/ohci-lh7a404.c
+++ b/drivers/usb/host/ohci-lh7a404.c
@@ -193,7 +193,6 @@ static const struct hc_driver ohci_lh7a404_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 3d532b709670..1eb64d08b60a 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -470,7 +470,6 @@ static const struct hc_driver ohci_omap_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 083e8df0a817..a9c2ae36c7ad 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -459,7 +459,6 @@ static const struct hc_driver ohci_pci_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c
index b02cd0761977..658a2a978c32 100644
--- a/drivers/usb/host/ohci-pnx4008.c
+++ b/drivers/usb/host/ohci-pnx4008.c
@@ -277,7 +277,6 @@ static const struct hc_driver ohci_pnx4008_hc_driver = {
         */
        .hub_status_data = ohci_hub_status_data,
        .hub_control = ohci_hub_control,
-        .hub_irq_enable = ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend = ohci_bus_suspend,
        .bus_resume = ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-pnx8550.c b/drivers/usb/host/ohci-pnx8550.c
index 605d59cba28e..28467e288a93 100644
--- a/drivers/usb/host/ohci-pnx8550.c
+++ b/drivers/usb/host/ohci-pnx8550.c
@@ -201,7 +201,6 @@ static const struct hc_driver ohci_pnx8550_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 91e6e101a4cc..7ac53264ead3 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -72,7 +72,6 @@ static const struct hc_driver ohci_ppc_of_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c
index 523c30125577..cd3398b675b2 100644
--- a/drivers/usb/host/ohci-ppc-soc.c
+++ b/drivers/usb/host/ohci-ppc-soc.c
@@ -172,7 +172,6 @@ static const struct hc_driver ohci_ppc_soc_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 55c95647f008..2089d8a46c4b 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -68,7 +68,6 @@ static const struct hc_driver ps3_ohci_hc_driver = {
        .get_frame_number       = ohci_get_frame,
        .hub_status_data        = ohci_hub_status_data,
        .hub_control            = ohci_hub_control,
-        .hub_irq_enable         = ohci_rhsc_enable,
        .start_port_reset       = ohci_start_port_reset,
 #if defined(CONFIG_PM)
        .bus_suspend            = ohci_bus_suspend,
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 8c9c4849db6e..7f0f35c78185 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -298,7 +298,6 @@ static const struct hc_driver ohci_pxa27x_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 9e3dc4069e8b..f46af7a718d4 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -466,7 +466,6 @@ static const struct hc_driver ohci_s3c2410_hc_driver = {
         */
        .hub_status_data =      ohci_s3c2410_hub_status_data,
        .hub_control =          ohci_s3c2410_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c
index 4626b002e670..e4bbe8e188e4 100644
--- a/drivers/usb/host/ohci-sa1111.c
+++ b/drivers/usb/host/ohci-sa1111.c
@@ -231,7 +231,6 @@ static const struct hc_driver ohci_sa1111_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c
index e7ee607278fe..60f03cc7ec4f 100644
--- a/drivers/usb/host/ohci-sh.c
+++ b/drivers/usb/host/ohci-sh.c
@@ -68,7 +68,6 @@ static const struct hc_driver ohci_sh_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index 21b164e4abeb..cff23637cfcc 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -75,7 +75,6 @@ static const struct hc_driver ohci_sm501_hc_driver = {
         */
        .hub_status_data =      ohci_hub_status_data,
        .hub_control =          ohci_hub_control,
-        .hub_irq_enable =       ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend =          ohci_bus_suspend,
        .bus_resume =           ohci_bus_resume,
diff --git a/drivers/usb/host/ohci-ssb.c b/drivers/usb/host/ohci-ssb.c
index 3660c83d80af..23fd6a886bdd 100644
--- a/drivers/usb/host/ohci-ssb.c
+++ b/drivers/usb/host/ohci-ssb.c
@@ -81,7 +81,6 @@ static const struct hc_driver ssb_ohci_hc_driver = {
        .hub_status_data        = ohci_hub_status_data,
        .hub_control            = ohci_hub_control,
-        .hub_irq_enable         = ohci_rhsc_enable,
 #ifdef  CONFIG_PM
        .bus_suspend            = ohci_bus_suspend,
        .bus_resume             = ohci_bus_resume,
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 20ad3c48fcb2..228f2b070f2b 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -2934,16 +2934,6 @@ static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
                return 0;
 }
-static void u132_hub_irq_enable(struct usb_hcd *hcd)
-{
-        struct u132 *u132 = hcd_to_u132(hcd);
-        if (u132->going > 1) {
-                dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
-                        , u132->going);
-        } else if (u132->going > 0)
-                dev_err(&u132->platform_dev->dev, "device is being removed\n");
-}
 #ifdef CONFIG_PM
 static int u132_bus_suspend(struct usb_hcd *hcd)
@@ -2995,7 +2985,6 @@ static struct hc_driver u132_hc_driver = {
        .bus_suspend = u132_bus_suspend,
        .bus_resume = u132_bus_resume,
        .start_port_reset = u132_start_port_reset,
-        .hub_irq_enable = u132_hub_irq_enable,
 };
 /*
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index fbace41a7cba..69c34a58e205 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3270,6 +3270,7 @@ static struct usb_device_id sisusb_table [] = {
        { USB_DEVICE(0x0711, 0x0900) },
        { USB_DEVICE(0x0711, 0x0901) },
        { USB_DEVICE(0x0711, 0x0902) },
+        { USB_DEVICE(0x0711, 0x0918) },
        { USB_DEVICE(0x182d, 0x021c) },
        { USB_DEVICE(0x182d, 0x0269) },
        { }
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index faca4333f27a..a0017486ad4e 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -165,12 +165,11 @@ config USB_TUSB_OMAP_DMA
        help
          Enable DMA transfers on TUSB 6010 when OMAP DMA is available.
-config  USB_MUSB_LOGLEVEL
+config  USB_MUSB_DEBUG
        depends on USB_MUSB_HDRC
-        int  'Logging Level (0 - none / 3 - annoying / ... )'
+        bool "Enable debugging messages"
-        default 0
+        default n
        help
-          Set the logging level. 0 disables the debugging altogether,
+          This enables musb debugging. To set the logging level use the debug
-          although when USB_DEBUG is set the value is at least 1.
+          module parameter. Starting at level 3, per-transfer (urb, usb_request,
-          Starting at level 3, per-transfer (urb, usb_request, packet,
+          packet, or dma transfer) tracing may kick in.
-          or dma transfer) tracing may kick in.
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index 88eb67de08ae..b6af0d687a73 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -64,23 +64,6 @@ endif
 # Debugging
-MUSB_DEBUG:=$(CONFIG_USB_MUSB_LOGLEVEL)
+ifeq ($(CONFIG_USB_MUSB_DEBUG),y)
+        EXTRA_CFLAGS += -DDEBUG
-ifeq ("$(strip $(MUSB_DEBUG))","")
-    ifdef CONFIG_USB_DEBUG
-        MUSB_DEBUG:=1
-    else
-        MUSB_DEBUG:=0
-    endif
 endif
-ifneq ($(MUSB_DEBUG),0)
-    EXTRA_CFLAGS += -DDEBUG
-    ifeq ($(CONFIG_PROC_FS),y)
-        musb_hdrc-objs          += musb_procfs.o
-    endif
-endif
-EXTRA_CFLAGS += -DMUSB_DEBUG=$(MUSB_DEBUG)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index d68ec6daf335..c5b8f0296fcf 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -114,23 +114,14 @@
-#if MUSB_DEBUG > 0
+unsigned debug;
-unsigned debug = MUSB_DEBUG;
+module_param(debug, uint, S_IRUGO | S_IWUSR);
-module_param(debug, uint, 0);
+MODULE_PARM_DESC(debug, "Debug message level. Default = 0");
-MODULE_PARM_DESC(debug, "initial debug message level");
-#define MUSB_VERSION_SUFFIX     "/dbg"
-#endif
 #define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia"
 #define DRIVER_DESC "Inventra Dual-Role USB Controller Driver"
-#define MUSB_VERSION_BASE "6.0"
+#define MUSB_VERSION "6.0"
-#ifndef MUSB_VERSION_SUFFIX
-#define MUSB_VERSION_SUFFIX     ""
-#endif
-#define MUSB_VERSION    MUSB_VERSION_BASE MUSB_VERSION_SUFFIX
 #define DRIVER_INFO DRIVER_DESC ", v" MUSB_VERSION
@@ -2037,6 +2028,8 @@ bad_config:
                musb->xceiv.state = OTG_STATE_A_IDLE;
                status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
+                if (status)
+                        goto fail;
                DBG(1, "%s mode, status %d, devctl %02x %c\n",
                        "HOST", status,
@@ -2051,6 +2044,8 @@ bad_config:
                musb->xceiv.state = OTG_STATE_B_IDLE;
                status = musb_gadget_setup(musb);
+                if (status)
+                        goto fail;
                DBG(1, "%s mode, status %d, dev%02x\n",
                        is_otg_enabled(musb) ? "OTG" : "PERIPHERAL",
@@ -2059,16 +2054,14 @@ bad_config:
        }
-        if (status == 0)
+        return 0;
-                musb_debug_create("driver/musb_hdrc", musb);
-        else {
 fail:
-                if (musb->clock)
+        if (musb->clock)
-                        clk_put(musb->clock);
+                clk_put(musb->clock);
-                device_init_wakeup(dev, 0);
+        device_init_wakeup(dev, 0);
-                musb_free(musb);
+        musb_free(musb);
-                return status;
+        return status;
-        }
 #ifdef CONFIG_SYSFS
        status = device_create_file(dev, &dev_attr_mode);
@@ -2131,7 +2124,6 @@ static int __devexit musb_remove(struct platform_device *pdev)
         *  - OTG mode: both roles are deactivated (or never-activated)
         */
        musb_shutdown(pdev);
-        musb_debug_delete("driver/musb_hdrc", musb);
 #ifdef CONFIG_USB_MUSB_HDRC_HCD
        if (musb->board_mode == MUSB_HOST)
                usb_remove_hcd(musb_to_hcd(musb));
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index eade46d81708..82227251931b 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -485,23 +485,4 @@ extern int musb_platform_get_vbus_status(struct musb *musb);
 extern int __init musb_platform_init(struct musb *musb);
 extern int musb_platform_exit(struct musb *musb);
-/*-------------------------- ProcFS definitions ---------------------*/
-struct proc_dir_entry;
-#if (MUSB_DEBUG > 0) && defined(MUSB_CONFIG_PROC_FS)
-extern struct proc_dir_entry *musb_debug_create(char *name, struct musb *data);
-extern void musb_debug_delete(char *name, struct musb *data);
-#else
-static inline struct proc_dir_entry *
-musb_debug_create(char *name, struct musb *data)
-{
-        return NULL;
-}
-static inline void musb_debug_delete(char *name, struct musb *data)
-{
-}
-#endif
 #endif  /* __MUSB_CORE_H__ */
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 3bdb311e820d..4d2794441b15 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -48,11 +48,7 @@
                                __func__, __LINE__ , ## args); \
        } } while (0)
-#if MUSB_DEBUG > 0
 extern unsigned debug;
-#else
-#define debug   0
-#endif
 static inline int _dbg_level(unsigned l)
 {
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 48d7d3ccb243..a57652fff39c 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -476,6 +476,7 @@ static void ep0_rxstate(struct musb *musb)
                        return;
                musb->ackpend = 0;
        }
+        musb_ep_select(musb->mregs, 0);
        musb_writew(regs, MUSB_CSR0, tmp);
 }
@@ -528,6 +529,7 @@ static void ep0_txstate(struct musb *musb)
        }
        /* send it out, triggering a "txpktrdy cleared" irq */
+        musb_ep_select(musb->mregs, 0);
        musb_writew(regs, MUSB_CSR0, csr);
 }
diff --git a/drivers/usb/musb/musb_procfs.c b/drivers/usb/musb/musb_procfs.c
deleted file mode 100644
index 55e6b78bdccc..000000000000
--- a/drivers/usb/musb/musb_procfs.c
+++ /dev/null
@@ -1,830 +0,0 @@
-/*
- * MUSB OTG driver debug support
- *
- * Copyright 2005 Mentor Graphics Corporation
- * Copyright (C) 2005-2006 by Texas Instruments
- * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-#include <linux/kernel.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>      /* FIXME remove procfs writes */
-#include <asm/arch/hardware.h>
-#include "musb_core.h"
-#include "davinci.h"
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
-static int dump_qh(struct musb_qh *qh, char *buf, unsigned max)
-{
-        int                             count;
-        int                             tmp;
-        struct usb_host_endpoint        *hep = qh->hep;
-        struct urb                      *urb;
-        count = snprintf(buf, max, "    qh %p dev%d ep%d%s max%d\n",
-                        qh, qh->dev->devnum, qh->epnum,
-                        ({ char *s; switch (qh->type) {
-                        case USB_ENDPOINT_XFER_BULK:
-                                s = "-bulk"; break;
-                        case USB_ENDPOINT_XFER_INT:
-                                s = "-int"; break;
-                        case USB_ENDPOINT_XFER_CONTROL:
-                                s = ""; break;
-                        default:
-                                s = "iso"; break;
-                        }; s; }),
-                        qh->maxpacket);
-        if (count <= 0)
-                return 0;
-        buf += count;
-        max -= count;
-        list_for_each_entry(urb, &hep->urb_list, urb_list) {
-                tmp = snprintf(buf, max, "\t%s urb %p %d/%d\n",
-                                usb_pipein(urb->pipe) ? "in" : "out",
-                                urb, urb->actual_length,
-                                urb->transfer_buffer_length);
-                if (tmp <= 0)
-                        break;
-                tmp = min(tmp, (int)max);
-                count += tmp;
-                buf += tmp;
-                max -= tmp;
-        }
-        return count;
-}
-static int
-dump_queue(struct list_head *q, char *buf, unsigned max)
-{
-        int             count = 0;
-        struct musb_qh  *qh;
-        list_for_each_entry(qh, q, ring) {
-                int     tmp;
-                tmp = dump_qh(qh, buf, max);
-                if (tmp <= 0)
-                        break;
-                tmp = min(tmp, (int)max);
-                count += tmp;
-                buf += tmp;
-                max -= tmp;
-        }
-        return count;
-}
-#endif  /* HCD */
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
-static int dump_ep(struct musb_ep *ep, char *buffer, unsigned max)
-{
-        char            *buf = buffer;
-        int             code = 0;
-        void __iomem    *regs = ep->hw_ep->regs;
-        char            *mode = "1buf";
-        if (ep->is_in) {
-                if (ep->hw_ep->tx_double_buffered)
-                        mode = "2buf";
-        } else {
-                if (ep->hw_ep->rx_double_buffered)
-                        mode = "2buf";
-        }
-        do {
-                struct usb_request      *req;
-                code = snprintf(buf, max,
-                                "\n%s (hw%d): %s%s, csr %04x maxp %04x\n",
-                                ep->name, ep->current_epnum,
-                                mode, ep->dma ? " dma" : "",
-                                musb_readw(regs,
-                                        (ep->is_in || !ep->current_epnum)
-                                                ? MUSB_TXCSR
-                                                : MUSB_RXCSR),
-                                musb_readw(regs, ep->is_in
-                                                ? MUSB_TXMAXP
-                                                : MUSB_RXMAXP)
-                                );
-                if (code <= 0)
-                        break;
-                code = min(code, (int) max);
-                buf += code;
-                max -= code;
-                if (is_cppi_enabled() && ep->current_epnum) {
-                        unsigned        cppi = ep->current_epnum - 1;
-                        void __iomem    *base = ep->musb->ctrl_base;
-                        unsigned        off1 = cppi << 2;
-                        void __iomem    *ram = base;
-                        char            tmp[16];
-                        if (ep->is_in) {
-                                ram += DAVINCI_TXCPPI_STATERAM_OFFSET(cppi);
-                                tmp[0] = 0;
-                        } else {
-                                ram += DAVINCI_RXCPPI_STATERAM_OFFSET(cppi);
-                                snprintf(tmp, sizeof tmp, "%d left, ",
-                                        musb_readl(base,
-                                        DAVINCI_RXCPPI_BUFCNT0_REG + off1));
-                        }
-                        code = snprintf(buf, max, "%cX DMA%d: %s"
-                                        "%08x %08x, %08x %08x; "
-                                        "%08x %08x %08x .. %08x\n",
-                                ep->is_in ? 'T' : 'R',
-                                ep->current_epnum - 1, tmp,
-                                musb_readl(ram, 0 * 4),
-                                musb_readl(ram, 1 * 4),
-                                musb_readl(ram, 2 * 4),
-                                musb_readl(ram, 3 * 4),
-                                musb_readl(ram, 4 * 4),
-                                musb_readl(ram, 5 * 4),
-                                musb_readl(ram, 6 * 4),
-                                musb_readl(ram, 7 * 4));
-                        if (code <= 0)
-                                break;
-                        code = min(code, (int) max);
-                        buf += code;
-                        max -= code;
-                }
-                if (list_empty(&ep->req_list)) {
-                        code = snprintf(buf, max, "\t(queue empty)\n");
-                        if (code <= 0)
-                                break;
-                        code = min(code, (int) max);
-                        buf += code;
-                        max -= code;
-                        break;
-                }
-                list_for_each_entry(req, &ep->req_list, list) {
-                        code = snprintf(buf, max, "\treq %p, %s%s%d/%d\n",
-                                        req,
-                                        req->zero ? "zero, " : "",
-                                        req->short_not_ok ? "!short, " : "",
-                                        req->actual, req->length);
-                        if (code <= 0)
-                                break;
-                        code = min(code, (int) max);
-                        buf += code;
-                        max -= code;
-                }
-        } while (0);
-        return buf - buffer;
-}
-#endif
-static int
-dump_end_info(struct musb *musb, u8 epnum, char *aBuffer, unsigned max)
-{
-        int                     code = 0;
-        char                    *buf = aBuffer;
-        struct musb_hw_ep       *hw_ep = &musb->endpoints[epnum];
-        do {
-                musb_ep_select(musb->mregs, epnum);
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
-                if (is_host_active(musb)) {
-                        int             dump_rx, dump_tx;
-                        void __iomem    *regs = hw_ep->regs;
-                        /* TEMPORARY (!) until we have a real periodic
-                         * schedule tree ...
-                         */
-                        if (!epnum) {
-                                /* control is shared, uses RX queue
-                                 * but (mostly) shadowed tx registers
-                                 */
-                                dump_tx = !list_empty(&musb->control);
-                                dump_rx = 0;
-                        } else if (hw_ep == musb->bulk_ep) {
-                                dump_tx = !list_empty(&musb->out_bulk);
-                                dump_rx = !list_empty(&musb->in_bulk);
-                        } else if (musb->periodic[epnum]) {
-                                struct usb_host_endpoint        *hep;
-                                hep = musb->periodic[epnum]->hep;
-                                dump_rx = hep->desc.bEndpointAddress
-                                                & USB_ENDPOINT_DIR_MASK;
-                                dump_tx = !dump_rx;
-                        } else
-                                break;
-                        /* END TEMPORARY */
-                        if (dump_rx) {
-                                code = snprintf(buf, max,
-                                        "\nRX%d: %s rxcsr %04x interval %02x "
-                                        "max %04x type %02x; "
-                                        "dev %d hub %d port %d"
-                                        "\n",
-                                        epnum,
-                                        hw_ep->rx_double_buffered
-                                                ? "2buf" : "1buf",
-                                        musb_readw(regs, MUSB_RXCSR),
-                                        musb_readb(regs, MUSB_RXINTERVAL),
-                                        musb_readw(regs, MUSB_RXMAXP),
-                                        musb_readb(regs, MUSB_RXTYPE),
-                                        /* FIXME:  assumes multipoint */
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_RXFUNCADDR)),
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_RXHUBADDR)),
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_RXHUBPORT))
-                                        );
-                                if (code <= 0)
-                                        break;
-                                code = min(code, (int) max);
-                                buf += code;
-                                max -= code;
-                                if (is_cppi_enabled()
-                                                && epnum
-                                                && hw_ep->rx_channel) {
-                                        unsigned        cppi = epnum - 1;
-                                        unsigned        off1 = cppi << 2;
-                                        void __iomem    *base;
-                                        void __iomem    *ram;
-                                        char            tmp[16];
-                                        base = musb->ctrl_base;
-                                        ram = DAVINCI_RXCPPI_STATERAM_OFFSET(
-                                                        cppi) + base;
-                                        snprintf(tmp, sizeof tmp, "%d left, ",
-                                                musb_readl(base,
-                                                DAVINCI_RXCPPI_BUFCNT0_REG
-                                                                + off1));
-                                        code = snprintf(buf, max,
-                                                "    rx dma%d: %s"
-                                                "%08x %08x, %08x %08x; "
-                                                "%08x %08x %08x .. %08x\n",
-                                                cppi, tmp,
-                                                musb_readl(ram, 0 * 4),
-                                                musb_readl(ram, 1 * 4),
-                                                musb_readl(ram, 2 * 4),
-                                                musb_readl(ram, 3 * 4),
-                                                musb_readl(ram, 4 * 4),
-                                                musb_readl(ram, 5 * 4),
-                                                musb_readl(ram, 6 * 4),
-                                                musb_readl(ram, 7 * 4));
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                }
-                                if (hw_ep == musb->bulk_ep
-                                                && !list_empty(
-                                                        &musb->in_bulk)) {
-                                        code = dump_queue(&musb->in_bulk,
-                                                        buf, max);
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                } else if (musb->periodic[epnum]) {
-                                        code = dump_qh(musb->periodic[epnum],
-                                                        buf, max);
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                }
-                        }
-                        if (dump_tx) {
-                                code = snprintf(buf, max,
-                                        "\nTX%d: %s txcsr %04x interval %02x "
-                                        "max %04x type %02x; "
-                                        "dev %d hub %d port %d"
-                                        "\n",
-                                        epnum,
-                                        hw_ep->tx_double_buffered
-                                                ? "2buf" : "1buf",
-                                        musb_readw(regs, MUSB_TXCSR),
-                                        musb_readb(regs, MUSB_TXINTERVAL),
-                                        musb_readw(regs, MUSB_TXMAXP),
-                                        musb_readb(regs, MUSB_TXTYPE),
-                                        /* FIXME:  assumes multipoint */
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_TXFUNCADDR)),
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_TXHUBADDR)),
-                                        musb_readb(musb->mregs,
-                                                MUSB_BUSCTL_OFFSET(epnum,
-                                                MUSB_TXHUBPORT))
-                                        );
-                                if (code <= 0)
-                                        break;
-                                code = min(code, (int) max);
-                                buf += code;
-                                max -= code;
-                                if (is_cppi_enabled()
-                                                && epnum
-                                                && hw_ep->tx_channel) {
-                                        unsigned        cppi = epnum - 1;
-                                        void __iomem    *base;
-                                        void __iomem    *ram;
-                                        base = musb->ctrl_base;
-                                        ram = DAVINCI_RXCPPI_STATERAM_OFFSET(
-                                                        cppi) + base;
-                                        code = snprintf(buf, max,
-                                                "    tx dma%d: "
-                                                "%08x %08x, %08x %08x; "
-                                                "%08x %08x %08x .. %08x\n",
-                                                cppi,
-                                                musb_readl(ram, 0 * 4),
-                                                musb_readl(ram, 1 * 4),
-                                                musb_readl(ram, 2 * 4),
-                                                musb_readl(ram, 3 * 4),
-                                                musb_readl(ram, 4 * 4),
-                                                musb_readl(ram, 5 * 4),
-                                                musb_readl(ram, 6 * 4),
-                                                musb_readl(ram, 7 * 4));
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                }
-                                if (hw_ep == musb->control_ep
-                                                && !list_empty(
-                                                        &musb->control)) {
-                                        code = dump_queue(&musb->control,
-                                                        buf, max);
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                } else if (hw_ep == musb->bulk_ep
-                                                && !list_empty(
-                                                        &musb->out_bulk)) {
-                                        code = dump_queue(&musb->out_bulk,
-                                                        buf, max);
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                } else if (musb->periodic[epnum]) {
-                                        code = dump_qh(musb->periodic[epnum],
-                                                        buf, max);
-                                        if (code <= 0)
-                                                break;
-                                        code = min(code, (int) max);
-                                        buf += code;
-                                        max -= code;
-                                }
-                        }
-                }
-#endif
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
-                if (is_peripheral_active(musb)) {
-                        code = 0;
-                        if (hw_ep->ep_in.desc || !epnum) {
-                                code = dump_ep(&hw_ep->ep_in, buf, max);
-                                if (code <= 0)
-                                        break;
-                                code = min(code, (int) max);
-                                buf += code;
-                                max -= code;
-                        }
-                        if (hw_ep->ep_out.desc) {
-                                code = dump_ep(&hw_ep->ep_out, buf, max);
-                                if (code <= 0)
-                                        break;
-                                code = min(code, (int) max);
-                                buf += code;
-                                max -= code;
-                        }
-                }
-#endif
-        } while (0);
-        return buf - aBuffer;
-}
-/* Dump the current status and compile options.
- * @param musb the device driver instance
- * @param buffer where to dump the status; it must be big enough to hold the
- * result otherwise "BAD THINGS HAPPENS(TM)".
- */
-static int dump_header_stats(struct musb *musb, char *buffer)
-{
-        int code, count = 0;
-        const void __iomem *mbase = musb->mregs;
-        *buffer = 0;
-        count = sprintf(buffer, "Status: %sHDRC, Mode=%s "
-                                "(Power=%02x, DevCtl=%02x)\n",
-                        (musb->is_multipoint ? "M" : ""), MUSB_MODE(musb),
-                        musb_readb(mbase, MUSB_POWER),
-                        musb_readb(mbase, MUSB_DEVCTL));
-        if (count <= 0)
-                return 0;
-        buffer += count;
-        code = sprintf(buffer, "OTG state: %s; %sactive\n",
-                        otg_state_string(musb),
-                        musb->is_active ? "" : "in");
-        if (code <= 0)
-                goto done;
-        buffer += code;
-        count += code;
-        code = sprintf(buffer,
-                        "Options: "
-#ifdef CONFIG_MUSB_PIO_ONLY
-                        "pio"
-#elif defined(CONFIG_USB_TI_CPPI_DMA)
-                        "cppi-dma"
-#elif defined(CONFIG_USB_INVENTRA_DMA)
-                        "musb-dma"
-#elif defined(CONFIG_USB_TUSB_OMAP_DMA)
-                        "tusb-omap-dma"
-#else
-                        "?dma?"
-#endif
-                        ", "
-#ifdef CONFIG_USB_MUSB_OTG
-                        "otg (peripheral+host)"
-#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
-                        "peripheral"
-#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
-                        "host"
-#endif
-                        ", debug=%d [eps=%d]\n",
-                debug,
-                musb->nr_endpoints);
-        if (code <= 0)
-                goto done;
-        count += code;
-        buffer += code;
-#ifdef  CONFIG_USB_GADGET_MUSB_HDRC
-        code = sprintf(buffer, "Peripheral address: %02x\n",
-                        musb_readb(musb->ctrl_base, MUSB_FADDR));
-        if (code <= 0)
-                goto done;
-        buffer += code;
-        count += code;
-#endif
-#ifdef  CONFIG_USB_MUSB_HDRC_HCD
-        code = sprintf(buffer, "Root port status: %08x\n",
-                        musb->port1_status);
-        if (code <= 0)
-                goto done;
-        buffer += code;
-        count += code;
-#endif
-#ifdef  CONFIG_ARCH_DAVINCI
-        code = sprintf(buffer,
-                        "DaVinci: ctrl=%02x stat=%1x phy=%03x\n"
-                        "\trndis=%05x auto=%04x intsrc=%08x intmsk=%08x"
-                        "\n",
-                        musb_readl(musb->ctrl_base, DAVINCI_USB_CTRL_REG),
-                        musb_readl(musb->ctrl_base, DAVINCI_USB_STAT_REG),
-                        __raw_readl((void __force __iomem *)
-                                        IO_ADDRESS(USBPHY_CTL_PADDR)),
-                        musb_readl(musb->ctrl_base, DAVINCI_RNDIS_REG),
-                        musb_readl(musb->ctrl_base, DAVINCI_AUTOREQ_REG),
-                        musb_readl(musb->ctrl_base,
-                                        DAVINCI_USB_INT_SOURCE_REG),
-                        musb_readl(musb->ctrl_base,
-                                        DAVINCI_USB_INT_MASK_REG));
-        if (code <= 0)
-                goto done;
-        count += code;
-        buffer += code;
-#endif  /* DAVINCI */
-#ifdef CONFIG_USB_TUSB6010
-        code = sprintf(buffer,
-                        "TUSB6010: devconf %08x, phy enable %08x drive %08x"
-                        "\n\totg %03x timer %08x"
-                        "\n\tprcm conf %08x mgmt %08x; int src %08x mask %08x"
-                        "\n",
-                        musb_readl(musb->ctrl_base, TUSB_DEV_CONF),
-                        musb_readl(musb->ctrl_base, TUSB_PHY_OTG_CTRL_ENABLE),
-                        musb_readl(musb->ctrl_base, TUSB_PHY_OTG_CTRL),
-                        musb_readl(musb->ctrl_base, TUSB_DEV_OTG_STAT),
-                        musb_readl(musb->ctrl_base, TUSB_DEV_OTG_TIMER),
-                        musb_readl(musb->ctrl_base, TUSB_PRCM_CONF),
-                        musb_readl(musb->ctrl_base, TUSB_PRCM_MNGMT),
-                        musb_readl(musb->ctrl_base, TUSB_INT_SRC),
-                        musb_readl(musb->ctrl_base, TUSB_INT_MASK));
-        if (code <= 0)
-                goto done;
-        count += code;
-        buffer += code;
-#endif  /* DAVINCI */
-        if (is_cppi_enabled() && musb->dma_controller) {
-                code = sprintf(buffer,
-                                "CPPI: txcr=%d txsrc=%01x txena=%01x; "
-                                "rxcr=%d rxsrc=%01x rxena=%01x "
-                                "\n",
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_TXCPPI_CTRL_REG),
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_TXCPPI_RAW_REG),
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_TXCPPI_INTENAB_REG),
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_RXCPPI_CTRL_REG),
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_RXCPPI_RAW_REG),
-                                musb_readl(musb->ctrl_base,
-                                                DAVINCI_RXCPPI_INTENAB_REG));
-                if (code <= 0)
-                        goto done;
-                count += code;
-                buffer += code;
-        }
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
-        if (is_peripheral_enabled(musb)) {
-                code = sprintf(buffer, "Gadget driver: %s\n",
-                                musb->gadget_driver
-                                        ? musb->gadget_driver->driver.name
-                                        : "(none)");
-                if (code <= 0)
-                        goto done;
-                count += code;
-                buffer += code;
-        }
-#endif
-done:
-        return count;
-}
-/* Write to ProcFS
- *
- * C soft-connect
- * c soft-disconnect
- * I enable HS
- * i disable HS
- * s stop session
- * F force session (OTG-unfriendly)
- * E rElinquish bus (OTG)
- * H request host mode
- * h cancel host request
- * T start sending TEST_PACKET
- * D<num> set/query the debug level
- */
-static int musb_proc_write(struct file *file, const char __user *buffer,
-                        unsigned long count, void *data)
-{
-        char cmd;
-        u8 reg;
-        struct musb *musb = (struct musb *)data;
-        void __iomem *mbase = musb->mregs;
-        /* MOD_INC_USE_COUNT; */
-        if (unlikely(copy_from_user(&cmd, buffer, 1)))
-                return -EFAULT;
-        switch (cmd) {
-        case 'C':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_POWER)
-                                        | MUSB_POWER_SOFTCONN;
-                        musb_writeb(mbase, MUSB_POWER, reg);
-                }
-                break;
-        case 'c':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_POWER)
-                                        & ~MUSB_POWER_SOFTCONN;
-                        musb_writeb(mbase, MUSB_POWER, reg);
-                }
-                break;
-        case 'I':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_POWER)
-                                        | MUSB_POWER_HSENAB;
-                        musb_writeb(mbase, MUSB_POWER, reg);
-                }
-                break;
-        case 'i':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_POWER)
-                                        & ~MUSB_POWER_HSENAB;
-                        musb_writeb(mbase, MUSB_POWER, reg);
-                }
-                break;
-        case 'F':
-                reg = musb_readb(mbase, MUSB_DEVCTL);
-                reg |= MUSB_DEVCTL_SESSION;
-                musb_writeb(mbase, MUSB_DEVCTL, reg);
-                break;
-        case 'H':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_DEVCTL);
-                        reg |= MUSB_DEVCTL_HR;
-                        musb_writeb(mbase, MUSB_DEVCTL, reg);
-                        /* MUSB_HST_MODE( ((struct musb*)data) ); */
-                        /* WARNING("Host Mode\n"); */
-                }
-                break;
-        case 'h':
-                if (mbase) {
-                        reg = musb_readb(mbase, MUSB_DEVCTL);
-                        reg &= ~MUSB_DEVCTL_HR;
-                        musb_writeb(mbase, MUSB_DEVCTL, reg);
-                }
-                break;
-        case 'T':
-                if (mbase) {
-                        musb_load_testpacket(musb);
-                        musb_writeb(mbase, MUSB_TESTMODE,
-                                        MUSB_TEST_PACKET);
-                }
-                break;
-#if (MUSB_DEBUG > 0)
-                /* set/read debug level */
-        case 'D':{
-                        if (count > 1) {
-                                char digits[8], *p = digits;
-                                int i = 0, level = 0, sign = 1;
-                                int len = min(count - 1, (unsigned long)8);
-                                if (copy_from_user(&digits, &buffer[1], len))
-                                        return -EFAULT;
-                                /* optional sign */
-                                if (*p == '-') {
-                                        len -= 1;
-                                        sign = -sign;
-                                        p++;
-                                }
-                                /* read it */
-                                while (i++ < len && *p > '0' && *p < '9') {
-                                        level = level * 10 + (*p - '0');
-                                        p++;
-                                }
-                                level *= sign;
-                                DBG(1, "debug level %d\n", level);
-                                debug = level;
-                        }
-                }
-                break;
-        case '?':
-                INFO("?: you are seeing it\n");
-                INFO("C/c: soft connect enable/disable\n");
-                INFO("I/i: hispeed enable/disable\n");
-                INFO("F: force session start\n");
-                INFO("H: host mode\n");
-                INFO("T: start sending TEST_PACKET\n");
-                INFO("D: set/read dbug level\n");
-                break;
-#endif
-        default:
-                ERR("Command %c not implemented\n", cmd);
-                break;
-        }
-        musb_platform_try_idle(musb, 0);
-        return count;
-}
-static int musb_proc_read(char *page, char **start,
-                        off_t off, int count, int *eof, void *data)
-{
-        char *buffer = page;
-        int code = 0;
-        unsigned long   flags;
-        struct musb     *musb = data;
-        unsigned        epnum;
-        count -= off;
-        count -= 1;             /* for NUL at end */
-        if (count <= 0)
-                return -EINVAL;
-        spin_lock_irqsave(&musb->lock, flags);
-        code = dump_header_stats(musb, buffer);
-        if (code > 0) {
-                buffer += code;
-                count -= code;
-        }
-        /* generate the report for the end points */
-        /* REVISIT ... not unless something's connected! */
-        for (epnum = 0; count >= 0 && epnum < musb->nr_endpoints;
-                        epnum++) {
-                code = dump_end_info(musb, epnum, buffer, count);
-                if (code > 0) {
-                        buffer += code;
-                        count -= code;
-                }
-        }
-        musb_platform_try_idle(musb, 0);
-        spin_unlock_irqrestore(&musb->lock, flags);
-        *eof = 1;
-        return buffer - page;
-}
-void __devexit musb_debug_delete(char *name, struct musb *musb)
-{
-        if (musb->proc_entry)
-                remove_proc_entry(name, NULL);
-}
-struct proc_dir_entry *__init
-musb_debug_create(char *name, struct musb *data)
-{
-        struct proc_dir_entry   *pde;
-        /* FIXME convert everything to seq_file; then later, debugfs */
-        if (!name)
-                return NULL;
-        pde = create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR, NULL);
-        data->proc_entry = pde;
-        if (pde) {
-                pde->data = data;
-                /* pde->owner = THIS_MODULE; */
-                pde->read_proc = musb_proc_read;
-                pde->write_proc = musb_proc_write;
-                pde->size = 0;
-                pr_debug("Registered /proc/%s\n", name);
-        } else {
-                pr_debug("Cannot create a valid proc file entry");
-        }
-        return pde;
-}
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e143198aeb02..9f9cd36455f4 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -173,6 +173,7 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 #define KYOCERA_PRODUCT_KPC680                  0x180a
 #define ANYDATA_VENDOR_ID                       0x16d5
+#define ANYDATA_PRODUCT_ADU_620UW               0x6202
 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 #define ANYDATA_PRODUCT_ADU_500A                0x6502
@@ -318,6 +319,7 @@ static struct usb_device_id option_ids[] = {
        { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
        { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
        { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
+        { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
        { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
        { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
        { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
diff --git a/include/asm-x86/genapic_32.h b/include/asm-x86/genapic_32.h
index b02ea6e17de8..754d635f90ff 100644
--- a/include/asm-x86/genapic_32.h
+++ b/include/asm-x86/genapic_32.h
@@ -118,6 +118,7 @@ enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
 #define get_uv_system_type()            UV_NONE
 #define is_uv_system()                  0
 #define uv_wakeup_secondary(a, b)       1
+#define uv_system_init()                do {} while (0)
 #endif
diff --git a/include/asm-x86/genapic_64.h b/include/asm-x86/genapic_64.h
index 0f8504627c41..a47d63129135 100644
--- a/include/asm-x86/genapic_64.h
+++ b/include/asm-x86/genapic_64.h
@@ -42,6 +42,7 @@ extern int is_uv_system(void);
 extern struct genapic apic_x2apic_uv_x;
 DECLARE_PER_CPU(int, x2apic_extra_bits);
 extern void uv_cpu_init(void);
+extern void uv_system_init(void);
 extern int uv_wakeup_secondary(int phys_apicid, unsigned int start_rip);
 extern void setup_apic_routing(void);
diff --git a/include/asm-x86/irq_vectors.h b/include/asm-x86/irq_vectors.h
index b95d167b7fb2..a48c7f2dbdc0 100644
--- a/include/asm-x86/irq_vectors.h
+++ b/include/asm-x86/irq_vectors.h
@@ -76,6 +76,7 @@
 #define CALL_FUNCTION_SINGLE_VECTOR     0xfb
 #define THERMAL_APIC_VECTOR             0xfa
 #define THRESHOLD_APIC_VECTOR           0xf9
+#define UV_BAU_MESSAGE                  0xf8
 #define INVALIDATE_TLB_VECTOR_END       0xf7
 #define INVALIDATE_TLB_VECTOR_START     0xf0    /* f0-f7 used for TLB flush */
diff --git a/include/asm-x86/uv/uv_bau.h b/include/asm-x86/uv/uv_bau.h
index 91ac0dfb7588..610b6b308e93 100644
--- a/include/asm-x86/uv/uv_bau.h
+++ b/include/asm-x86/uv/uv_bau.h
@@ -40,11 +40,6 @@
 #define UV_ACTIVATION_DESCRIPTOR_SIZE   32
 #define UV_DISTRIBUTION_SIZE            256
 #define UV_SW_ACK_NPENDING              8
-#define UV_BAU_MESSAGE                  200
-/*
- * Messaging irq; see irq_64.h and include/asm-x86/hw_irq_64.h
- * To be dynamically allocated in the future
- */
 #define UV_NET_ENDPOINT_INTD            0x38
 #define UV_DESC_BASE_PNODE_SHIFT        49
 #define UV_PAYLOADQ_PNODE_SHIFT         49
diff --git a/include/linux/device.h b/include/linux/device.h
index d24a47f80f9c..4d8372d135df 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -358,6 +358,7 @@ struct device {
        struct kobject kobj;
        char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
+        const char              *init_name; /* initial name of the device */
        struct device_type      *type;
        unsigned                uevent_suppress:1;
@@ -406,7 +407,7 @@ struct device {
 /* Get the wakeup routines, which depend on struct device */
 #include <linux/pm_wakeup.h>
-static inline const char *dev_name(struct device *dev)
+static inline const char *dev_name(const struct device *dev)
 {
        /* will be changed into kobject_name(&dev->kobj) in the near future */
        return dev->bus_id;
@@ -518,7 +519,7 @@ extern void device_shutdown(void);
 extern void sysdev_shutdown(void);
 /* debugging and troubleshooting/diagnostic helpers. */
-extern const char *dev_driver_string(struct device *dev);
+extern const char *dev_driver_string(const struct device *dev);
 #define dev_printk(level, dev, format, arg...)  \
        printk(level "%s %s: " format , dev_driver_string(dev) , \
               dev_name(dev) , ## arg)
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 06b80337303b..225bfc5bd9ec 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -163,6 +163,7 @@ enum {
        ATA_DEV_NONE            = 9,    /* no device */
        /* struct ata_link flags */
+        ATA_LFLAG_NO_HRST       = (1 << 1), /* avoid hardreset */
        ATA_LFLAG_NO_SRST       = (1 << 2), /* avoid softreset */
        ATA_LFLAG_ASSUME_ATA    = (1 << 3), /* assume ATA class */
        ATA_LFLAG_ASSUME_SEMB   = (1 << 4), /* assume SEMB class */
@@ -646,6 +647,7 @@ struct ata_link {
        unsigned int            flags;          /* ATA_LFLAG_xxx */
+        u32                     saved_scontrol; /* SControl on probe */
        unsigned int            hw_sata_spd_limit;
        unsigned int            sata_spd_limit;
        unsigned int            sata_spd;       /* current SATA PHY speed */
@@ -1427,6 +1429,28 @@ static inline unsigned long ata_deadline(unsigned long from_jiffies,
        return from_jiffies + msecs_to_jiffies(timeout_msecs);
 }
+/* Don't open code these in drivers as there are traps. Firstly the range may
+   change in future hardware and specs, secondly 0xFF means 'no DMA' but is
+   > UDMA_0. Dyma ddreigiau */
+static inline int ata_using_mwdma(struct ata_device *adev)
+{
+        if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4)
+                return 1;
+        return 0;
+}
+static inline int ata_using_udma(struct ata_device *adev)
+{
+        if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7)
+                return 1;
+        return 0;
+}
+static inline int ata_dma_enabled(struct ata_device *adev)
+{
+        return (adev->dma_mode == 0xFF ? 0 : 1);
+}
 /**************************************************************************
 * PMP - drivers/ata/libata-pmp.c
diff --git a/include/linux/tick.h b/include/linux/tick.h
index d3c02695dc5d..8cf8cfe2cc97 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -74,10 +74,13 @@ extern struct tick_device *tick_get_device(int cpu);
 extern int tick_init_highres(void);
 extern int tick_program_event(ktime_t expires, int force);
 extern void tick_setup_sched_timer(void);
+# endif
+# if defined CONFIG_NO_HZ || defined CONFIG_HIGH_RES_TIMERS
 extern void tick_cancel_sched_timer(int cpu);
 # else
 static inline void tick_cancel_sched_timer(int cpu) { }
-# endif /* HIGHRES */
+# endif
 # ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
 extern struct tick_device *tick_get_broadcast_device(void);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 0924cd9c30f6..94ac74aba6b6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -110,6 +110,8 @@ enum usb_interface_condition {
 * @sysfs_files_created: sysfs attributes exist
 * @needs_remote_wakeup: flag set when the driver requires remote-wakeup
 *      capability during autosuspend.
+ * @needs_altsetting0: flag set when a set-interface request for altsetting 0
+ *      has been deferred.
 * @needs_binding: flag set when the driver should be re-probed or unbound
 *      following a reset or suspend operation it doesn't support.
 * @dev: driver model's view of this device
@@ -162,6 +164,7 @@ struct usb_interface {
        unsigned is_active:1;           /* the interface is not suspended */
        unsigned sysfs_files_created:1; /* the sysfs attributes exist */
        unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */
+        unsigned needs_altsetting0:1;   /* switch to altsetting 0 is pending */
        unsigned needs_binding:1;       /* needs delayed unbind/rebind */
        struct device dev;              /* interface specific device info */
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index f5da526424a9..7a46bde78c66 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -643,17 +643,21 @@ void tick_setup_sched_timer(void)
                ts->nohz_mode = NOHZ_MODE_HIGHRES;
 #endif
 }
+#endif /* HIGH_RES_TIMERS */
+#if defined CONFIG_NO_HZ || defined CONFIG_HIGH_RES_TIMERS
 void tick_cancel_sched_timer(int cpu)
 {
        struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
+# ifdef CONFIG_HIGH_RES_TIMERS
        if (ts->sched_timer.base)
                hrtimer_cancel(&ts->sched_timer);
+# endif
        ts->nohz_mode = NOHZ_MODE_INACTIVE;
 }
-#endif /* HIGH_RES_TIMERS */
+#endif
 /**
 * Async notification about clocksource changes
diff --git a/lib/kobject.c b/lib/kobject.c
index bd732ffebc85..fbf0ae282376 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -223,8 +223,7 @@ static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
                return -ENOMEM;
        /* ewww... some of these buggers have '/' in the name ... */
-        s = strchr(kobj->name, '/');
+        while ((s = strchr(kobj->name, '/')))
-        if (s)
                s[0] = '!';
        kfree(old_name);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 4fa1f3ad2513..4c9890ec2528 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -344,14 +344,20 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
                                struct module *mod)
 {
        const unsigned long id_size = sizeof(struct pnp_device_id);
-        const struct pnp_device_id *id = symval;
+        const unsigned int count = (size / id_size)-1;
+        const struct pnp_device_id *devs = symval;
+        unsigned int i;
        device_id_check(mod->name, "pnp", size, id_size, symval);
-        buf_printf(&mod->dev_table_buf,
+        for (i = 0; i < count; i++) {
-                   "MODULE_ALIAS(\"pnp:d%s*\");\n", id->id);
+                const char *id = (char *)devs[i].id;
-        buf_printf(&mod->dev_table_buf,
-                   "MODULE_ALIAS(\"acpi*:%s:*\");\n", id->id);
+                buf_printf(&mod->dev_table_buf,
+                           "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
+                buf_printf(&mod->dev_table_buf,
+                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", id);
+        }
 }
 /* looks like: "pnp:dD" for every device of the card */