IDE: remove ide=reverse IDE core

This option is obsolete and can be removed safely.

It allows us to remove the pci_get_device_reverse() function from the
PCI core.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

6 files changed, 4 insertions, 31 deletions

diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index 818676aad45a..ce7c01af30f6 100644
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -269,8 +269,6 @@ Summary of ide driver parameters for kernel command line
                           ability to bit test for detection is currently
                           unknown.
 
- "ide=reverse"          : formerly called to pci sub-system, but now local.
-
  "ide=doubler"          : probe/support IDE doublers on Amiga
 
 There may be more options than shown -- use the source, Luke!
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index dafd001bf833..228d85a3f319 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -763,7 +763,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
 
         ide=            [HW] (E)IDE subsystem
-                        Format: ide=nodma or ide=doubler or ide=reverse
+                        Format: ide=nodma or ide=doubler
                         See Documentation/ide/ide.txt.
 
         ide?=           [HW] (E)IDE subsystem
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index eed6d8e1b5c7..ac5875783430 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -416,12 +416,6 @@ config BLK_DEV_OFFBOARD
           This can improve the usability of some boot managers such as lilo
           when booting from a drive on an off-board controller.
 
-          If you say Y here, and you actually want to reverse the device scan
-          order as explained above, you also need to issue the kernel command
-          line option "ide=reverse". (Try "man bootparam" or see the
-          documentation of your boot loader (lilo or loadlin) about how to
-          pass options to the kernel at boot time.)
-
           Note that, if you do this, the order of the hd* devices will be
           rearranged which may require modification of fstab and other files.
 
@@ -615,8 +609,7 @@ config BLK_DEV_HPT366
           reference to device 0x80. The other solution is to say Y to "Boot
           off-board chipsets first support" (CONFIG_BLK_DEV_OFFBOARD) unless
           your mother board has the chipset natively mounted. Regardless one
-          should use the fore mentioned option and call at LILO or include
-          "ide=reverse" in LILO's append-line.
+          should use the fore mentioned option and call at LILO.
 
           This driver requires dynamic tuning of the chipset during the
           ide-probe at boot. It is reported to support DVD II drives, by the
diff --git a/drivers/ide/ide-scan-pci.c b/drivers/ide/ide-scan-pci.c
index 93d2e41be853..98888da1b600 100644
--- a/drivers/ide/ide-scan-pci.c
+++ b/drivers/ide/ide-scan-pci.c
@@ -88,13 +88,8 @@ static int __init ide_scan_pcibus(void)
         struct list_head *l, *n;
 
         pre_init = 0;
-        if (!ide_scan_direction)
-                while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)))
-                        ide_scan_pcidev(dev);
-        else
-                while ((dev = pci_get_device_reverse(PCI_ANY_ID, PCI_ANY_ID,
-                                                     dev)))
-                        ide_scan_pcidev(dev);
+        while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)))
+                ide_scan_pcidev(dev);
 
         /*
          *      Hand the drivers over to the PCI layer now we
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index fc69fe2e3ec0..5f545153391a 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -90,10 +90,6 @@ static int system_bus_speed;	/* holds what we think is VESA/PCI bus speed */
 DEFINE_MUTEX(ide_cfg_mtx);
  __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
-#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
-#endif
-
 int noautodma = 0;
 
 #ifdef CONFIG_BLK_DEV_IDEACPI
@@ -1217,14 +1213,6 @@ static int __init ide_setup(char *s)
                 goto obsolete_option;
         }
 
-#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-        if (!strcmp(s, "ide=reverse")) {
-                ide_scan_direction = 1;
-                printk(" : Enabled support for IDE inverse scan order.\n");
-                goto obsolete_option;
-        }
-#endif
-
 #ifdef CONFIG_BLK_DEV_IDEACPI
         if (!strcmp(s, "ide=noacpi")) {
                 //printk(" : Disable IDE ACPI support.\n");
diff --git a/include/linux/ide.h b/include/linux/ide.h
index bc26b2f27359..43d2968a4e13 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -990,7 +990,6 @@ extern void do_ide_request(struct request_queue *);
 void ide_init_disk(struct gendisk *, ide_drive_t *);
 
 #ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-extern int ide_scan_direction;
 extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
 #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
 #else