Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...

13 files changed, 10 insertions, 41 deletions

diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 8c6969747acd..2d57e19a2cd4 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -446,7 +446,6 @@ static struct platform_driver dra7xx_pcie_driver = {
         .remove         = __exit_p(dra7xx_pcie_remove),
         .driver = {
                 .name   = "dra7-pcie",
-                .owner  = THIS_MODULE,
                 .of_match_table = of_dra7xx_pcie_match,
         },
 };
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index 850c9f951a3f..d202b37c3698 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -641,7 +641,6 @@ static struct platform_driver exynos_pcie_driver = {
         .remove         = __exit_p(exynos_pcie_remove),
         .driver = {
                 .name   = "exynos-pcie",
-                .owner  = THIS_MODULE,
                 .of_match_table = exynos_pcie_of_match,
         },
 };
diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c
index 18959075d164..6eb1aa75bd37 100644
--- a/drivers/pci/host/pci-host-generic.c
+++ b/drivers/pci/host/pci-host-generic.c
@@ -310,7 +310,6 @@ static int gen_pci_probe(struct platform_device *pdev)
 static struct platform_driver gen_pci_driver = {
         .driver = {
                 .name = "pci-host-generic",
-                .owner = THIS_MODULE,
                 .of_match_table = gen_pci_of_match,
         },
         .probe = gen_pci_probe,
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index d1a26d17b586..fdb95367721e 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -643,7 +643,6 @@ MODULE_DEVICE_TABLE(of, imx6_pcie_of_match);
 static struct platform_driver imx6_pcie_driver = {
         .driver = {
                 .name   = "imx6q-pcie",
-                .owner  = THIS_MODULE,
                 .of_match_table = imx6_pcie_of_match,
         },
         .shutdown = imx6_pcie_shutdown,
diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c
index 62b9454c86fb..78f79e31ac5c 100644
--- a/drivers/pci/host/pci-keystone.c
+++ b/drivers/pci/host/pci-keystone.c
@@ -402,7 +402,6 @@ static struct platform_driver ks_pcie_driver __refdata = {
         .remove = __exit_p(ks_pcie_remove),
         .driver = {
                 .name   = "keystone-pcie",
-                .owner  = THIS_MODULE,
                 .of_match_table = of_match_ptr(ks_pcie_of_match),
         },
 };
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index fed3fab132f2..1dd759596b0a 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -1081,7 +1081,6 @@ MODULE_DEVICE_TABLE(of, mvebu_pcie_of_match_table);
 
 static struct platform_driver mvebu_pcie_driver = {
         .driver = {
-                .owner = THIS_MODULE,
                 .name = "mvebu-pcie",
                 .of_match_table = mvebu_pcie_of_match_table,
                 /* driver unloading/unbinding currently not supported */
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c
index 3ef854f5a5b5..d9c042febb1a 100644
--- a/drivers/pci/host/pci-rcar-gen2.c
+++ b/drivers/pci/host/pci-rcar-gen2.c
@@ -412,7 +412,6 @@ MODULE_DEVICE_TABLE(of, rcar_pci_of_match);
 static struct platform_driver rcar_pci_driver = {
         .driver = {
                 .name = "pci-rcar-gen2",
-                .owner = THIS_MODULE,
                 .suppress_bind_attrs = true,
                 .of_match_table = rcar_pci_of_match,
         },
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index feccfa6b6c11..a800ae916394 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -2129,7 +2129,6 @@ put_resources:
 static struct platform_driver tegra_pcie_driver = {
         .driver = {
                 .name = "tegra-pcie",
-                .owner = THIS_MODULE,
                 .of_match_table = tegra_pcie_of_match,
                 .suppress_bind_attrs = true,
         },
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 2988fe136c1e..b1d0596457c5 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -652,7 +652,6 @@ static const struct of_device_id xgene_pcie_match_table[] = {
 static struct platform_driver xgene_pcie_driver = {
         .driver = {
                    .name = "xgene-pcie",
-                   .owner = THIS_MODULE,
                    .of_match_table = of_match_ptr(xgene_pcie_match_table),
         },
         .probe = xgene_pcie_probe_bridge,
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 5519e939e412..748786c402fc 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -981,7 +981,6 @@ static int rcar_pcie_probe(struct platform_device *pdev)
 static struct platform_driver rcar_pcie_driver = {
         .driver = {
                 .name = DRV_NAME,
-                .owner = THIS_MODULE,
                 .of_match_table = rcar_pcie_of_match,
                 .suppress_bind_attrs = true,
         },
diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c
index 2ca10cc887ee..866465fd3dbf 100644
--- a/drivers/pci/host/pcie-spear13xx.c
+++ b/drivers/pci/host/pcie-spear13xx.c
@@ -374,7 +374,6 @@ static struct platform_driver spear13xx_pcie_driver __initdata = {
         .probe          = spear13xx_pcie_probe,
         .driver = {
                 .name   = "spear-pcie",
-                .owner  = THIS_MODULE,
                 .of_match_table = of_match_ptr(spear13xx_pcie_of_match),
         },
 };
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 2f50fa5953fd..ef3ebaf9a738 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -947,7 +947,6 @@ static struct of_device_id xilinx_pcie_of_match[] = {
 static struct platform_driver xilinx_pcie_driver = {
         .driver = {
                 .name = "xilinx-pcie",
-                .owner = THIS_MODULE,
                 .of_match_table = xilinx_pcie_of_match,
                 .suppress_bind_attrs = true,
         },
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a62acc443d5b..aa012fb3834b 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -77,11 +77,10 @@ static ssize_t broken_parity_status_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(broken_parity_status);
 
-static ssize_t pci_dev_show_local_cpu(struct device *dev, int type,
+static ssize_t pci_dev_show_local_cpu(struct device *dev, bool list,
                                       struct device_attribute *attr, char *buf)
 {
         const struct cpumask *mask;
-        int len;
 
 #ifdef CONFIG_NUMA
         mask = (dev_to_node(dev) == -1) ? cpu_online_mask :
@@ -89,59 +88,41 @@ static ssize_t pci_dev_show_local_cpu(struct device *dev, int type,
 #else
         mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
 #endif
-        len = type ?
-                cpumask_scnprintf(buf, PAGE_SIZE-2, mask) :
-                cpulist_scnprintf(buf, PAGE_SIZE-2, mask);
-
-        buf[len++] = '\n';
-        buf[len] = '\0';
-        return len;
+        return cpumap_print_to_pagebuf(list, buf, mask);
 }
 
 static ssize_t local_cpus_show(struct device *dev,
                                struct device_attribute *attr, char *buf)
 {
-        return pci_dev_show_local_cpu(dev, 1, attr, buf);
+        return pci_dev_show_local_cpu(dev, false, attr, buf);
 }
 static DEVICE_ATTR_RO(local_cpus);
 
 static ssize_t local_cpulist_show(struct device *dev,
                                   struct device_attribute *attr, char *buf)
 {
-        return pci_dev_show_local_cpu(dev, 0, attr, buf);
+        return pci_dev_show_local_cpu(dev, true, attr, buf);
 }
 static DEVICE_ATTR_RO(local_cpulist);
 
 /*
  * PCI Bus Class Devices
  */
-static ssize_t pci_bus_show_cpuaffinity(struct device *dev, int type,
-                                        struct device_attribute *attr,
-                                        char *buf)
-{
-        int ret;
-        const struct cpumask *cpumask;
-
-        cpumask = cpumask_of_pcibus(to_pci_bus(dev));
-        ret = type ?
-                cpulist_scnprintf(buf, PAGE_SIZE-2, cpumask) :
-                cpumask_scnprintf(buf, PAGE_SIZE-2, cpumask);
-        buf[ret++] = '\n';
-        buf[ret] = '\0';
-        return ret;
-}
-
 static ssize_t cpuaffinity_show(struct device *dev,
                                 struct device_attribute *attr, char *buf)
 {
-        return pci_bus_show_cpuaffinity(dev, 0, attr, buf);
+        const struct cpumask *cpumask = cpumask_of_pcibus(to_pci_bus(dev));
+
+        return cpumap_print_to_pagebuf(false, buf, cpumask);
 }
 static DEVICE_ATTR_RO(cpuaffinity);
 
 static ssize_t cpulistaffinity_show(struct device *dev,
                                     struct device_attribute *attr, char *buf)
 {
-        return pci_bus_show_cpuaffinity(dev, 1, attr, buf);
+        const struct cpumask *cpumask = cpumask_of_pcibus(to_pci_bus(dev));
+
+        return cpumap_print_to_pagebuf(true, buf, cpumask);
 }
 static DEVICE_ATTR_RO(cpulistaffinity);