linux/drivers/ide
Lorenzo Pieralisi b1f9e5e355 ide: fix IRQ assignment for PCI bus order probing
We used to assign IRQs for all devices at boot-time, before any drivers
claimed devices.  The following commits:

  30fdfb929e ("PCI: Add a call to pci_assign_irq() in pci_device_probe()")
  0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")

changed this so we now call pci_assign_irq() from pci_device_probe() when
we call a driver's probe method.

The ide_scan_pcibus() path (enabled by CONFIG_IDEPCI_PCIBUS_ORDER) bypasses
pci_device_probe() so it can guarantee devices are claimed in order of PCI
bus address.  It calls the driver's probe method directly, so it misses the
pci_assign_irq() call (and other PCI initialization functions), which
causes failures like this:

  ide0: disabled, no IRQ
  ide0: failed to initialize IDE interface
  ide0: disabling port
  cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07)
  CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io  0x8050-0x8057]
  cmd64x 0000:00:02.0: can't reserve resources
  CMD64x_IDE: probe of 0000:00:02.0 failed with error -16
  ide_generic: please use "probe_mask=0x3f" module parameter for probing
  all legacy ISA IDE ports
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0
  sysfs: cannot create duplicate filename '/class/ide_port/ide0'
  ...

  Trace:
  [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0
  [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70
  [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0
  [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60
  [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0
  [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0
  [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120
  [<fffffc00005b9d64>] device_add+0x2a4/0x7c0
  [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170
  [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170
  [<fffffc00005ba690>] device_create+0x50/0x70
  [<fffffc00005df36c>] ide_host_register+0x48c/0xa00
  [<fffffc00005df330>] ide_host_register+0x450/0xa00
  [<fffffc00005ba2a0>] device_register+0x20/0x50
  [<fffffc00005df330>] ide_host_register+0x450/0xa00
  [<fffffc00005df944>] ide_host_add+0x64/0xe0
  [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710
  [<fffffc0000310288>] do_one_initcall+0x68/0x260
  [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0
  ...
  ---[ end trace 24a70433c3e4d374 ]---
  ide0: disabling port

Fix the IRQ allocation issue by calling pci_assign_irq() from
ide_scan_pcidev() before probing the IDE PCI drivers, so that IRQs for a
given PCI device are allocated for the IDE PCI drivers to use them for
device configuration.

Fixes: 30fdfb929e ("PCI: Add a call to pci_assign_irq() in pci_device_probe()")
Fixes: 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
2017-10-03 14:03:31 -05:00
..
aec62xx.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ali14xx.c sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
alim15x3.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
amd74xx.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
atiixp.c Drivers: ide: Remove typedef atiixp_ide_timing 2014-10-15 14:27:38 -04:00
au1xxx-ide.c ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
buddha.c zorro: ZTWO_VADDR() should return "void __iomem *" 2013-11-26 11:09:07 +01:00
cmd64x.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
cmd640.c cmd640: add __init attribute 2016-07-26 15:25:30 -07:00
cs5520.c ide: remove deprecated use of pci api 2015-04-17 15:32:07 -04:00
cs5530.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
cs5535.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
cs5536.c ide: cs5536: use module_pci_driver() 2013-11-14 18:21:25 -05:00
cy82c693.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
delkin_cb.c drivers/ide/delkin_cb: Convert to module_pci_driver 2013-07-10 12:09:10 -07:00
dtc2278.c sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
falconide.c
gayle.c ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
hpt366.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ht6560b.c sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
icside.c ide: icside: remove incorrect initconst annotation 2016-03-20 16:59:27 -04:00
ide_platform.c ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
ide-4drives.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
ide-acpi.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
ide-atapi.c block: Change argument type of scsi_req_init() 2017-06-20 19:27:14 -06:00
ide-cd_ioctl.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-cd_verbose.c block: split scsi_request out of struct request 2017-01-27 15:08:35 -07:00
ide-cd.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-cd.h block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -06:00
ide-cs.c drivers/ide/ide-cs.c: adjust suspicious bit operation 2012-06-12 15:51:41 -07:00
ide-devsets.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-disk_ioctl.c block: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:10 +02:00
ide-disk_proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
ide-disk.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-disk.h
ide-dma-sff.c ide/ata: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed 2011-10-31 19:31:37 -04:00
ide-dma.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ide-eh.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ide-floppy_ioctl.c block: add and use scsi_blk_cmd_ioctl 2012-01-14 15:07:24 -08:00
ide-floppy_proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
ide-floppy.c ide-floppy: Use blk_rq_is_scsi() 2017-08-18 08:36:58 -06:00
ide-floppy.h
ide-gd.c block: convert to device_add_disk() 2016-06-27 12:26:08 -07:00
ide-gd.h
ide-generic.c Revert "ide: Fix interface autodetection in legacy IDE driver (trial #2)" 2017-01-09 15:27:59 -05:00
ide-io-std.c ide/ata: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed 2011-10-31 19:31:37 -04:00
ide-io.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ide-ioctls.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-iops.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ide-legacy.c ide/ata: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed 2011-10-31 19:31:37 -04:00
ide-lib.c ide,ata: Rename ATA_IDX to ATA_SENSE 2015-03-27 11:59:22 -04:00
ide-park.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-pci-generic.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ide-pio-blacklist.c drivers: ide: Include appropriate header file in ide-pio-blacklist.c 2014-01-28 23:35:09 -08:00
ide-pm.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-pnp.c PNP: ide/ide-pnp: Use module_pnp_driver to register driver 2015-03-18 22:39:17 +01:00
ide-probe.c ide: free hwif->portdev on hwif_init() failure 2017-10-03 13:36:17 -05:00
ide-proc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ide-scan-pci.c ide: fix IRQ assignment for PCI bus order probing 2017-10-03 14:03:31 -05:00
ide-sysfs.c ide: convert bus code to use dev_groups 2013-10-16 18:40:57 -07:00
ide-tape.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-taskfile.c block: Make most scsi_req_init() calls implicit 2017-06-20 19:27:14 -06:00
ide-timings.c ide: avoid warning for timings calculation 2017-07-21 04:37:22 +01:00
ide-xfer-mode.c ide/ata: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed 2011-10-31 19:31:37 -04:00
ide.c ide: silence some underflow warnings 2016-01-18 14:12:33 -05:00
it821x.c ide: constify ide_dma_ops structures 2016-01-18 14:12:33 -05:00
it8172.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
it8213.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
jmicron.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
Kconfig block: make scsi_request and scsi ioctl support optional 2017-01-31 10:53:05 -07:00
macide.c ide/ata: Add module.h to the implicit modular users 2011-10-31 19:31:37 -04:00
Makefile Remove celleb-only SCC PATA drivers 2015-04-14 13:07:17 -04:00
ns87415.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
opti621.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
palm_bk3710.c ide: palm_bk3710: add __initdata to palm_bk3710_port_info 2017-02-27 20:43:26 -05:00
pdc202xx_new.c PCI: Remove includes of asm/pci-bridge.h 2016-02-05 16:29:28 -06:00
pdc202xx_old.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
piix.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pmac.c ide: pmac: Convert to using %pOF instead of full_name 2017-09-01 16:42:51 +10:00
q40ide.c ide/ata: Add module.h to the implicit modular users 2011-10-31 19:31:37 -04:00
qd65xx.c sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
qd65xx.h
rapide.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
rz1000.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
sc1200.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
serverworks.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
setup-pci.c ide: pci: free PCI BARs on initialization failure 2017-10-03 14:02:57 -05:00
sgiioc4.c ide: remove deprecated use of pci api 2015-04-17 15:32:07 -04:00
siimage.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
sis5513.c block: split scsi_request out of struct request 2017-01-27 15:08:35 -07:00
sl82c105.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
slc90e66.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
tc86c001.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
triflex.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
trm290.c ide: constify ide_dma_ops structures 2016-01-18 14:12:33 -05:00
tx4938ide.c ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
tx4939ide.c ide: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
umc8672.c sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
via82cxxx.c Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00