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Johannes Thumshirn 45349821ab scsi: bfa: fix access to bfad_im_port_s
Commit 'cd21c605b2cf ("scsi: fc: provide fc_bsg_to_shost() helper")'
changed access to bfa's 'struct bfad_im_port_s' by using shost_priv()
instead of shost->hostdata[0].

This lead to crashes like in the following back-trace:

task: ffff880046375300 ti: ffff8800a2ef8000 task.ti: ffff8800a2ef8000
RIP: e030:[<ffffffffa04c8252>]  [<ffffffffa04c8252>] bfa_fcport_get_attr+0x82/0x260 [bfa]
RSP: e02b:ffff8800a2efba10  EFLAGS: 00010046
RAX: 575f415441536432 RBX: ffff8800a2efba28 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8800a2efba28 RDI: ffff880004dc31d8
RBP: ffff880004dc31d8 R08: 0000000000000000 R09: 0000000000000001
R10: ffff88011fadc468 R11: 0000000000000001 R12: ffff880004dc31f0
R13: 0000000000000200 R14: ffff880004dc61d0 R15: ffff880004947a10
FS:  00007feb1e489700(0000) GS:ffff88011fac0000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007ffe14e46c10 CR3: 00000000957b8000 CR4: 0000000000000660
Stack:
 ffff88001d4da000 ffff880004dc31c0 ffffffffa048a9df ffffffff81e56380
 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[] bfad_iocmd_ioc_get_info+0x4f/0x220 [bfa]
[] bfad_iocmd_handler+0xa00/0xd40 [bfa]
[] bfad_im_bsg_request+0xee/0x1b0 [bfa]
[] fc_bsg_dispatch+0x10b/0x1b0 [scsi_transport_fc]
[] bsg_request_fn+0x11d/0x1c0
[] __blk_run_queue+0x2f/0x40
[] blk_execute_rq_nowait+0xa8/0x160
[] blk_execute_rq+0x77/0x120
[] bsg_ioctl+0x1b6/0x200
[] do_vfs_ioctl+0x2cd/0x4a0
[] SyS_ioctl+0x74/0x80
[] entry_SYSCALL_64_fastpath+0x12/0x6d

Fixes: cd21c605b2 ("scsi: fc: provide fc_bsg_to_shost() helper")
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-11-29 00:17:23 -05:00
Documentation IPMI updates for 4.15 2017-11-15 15:12:28 -08:00
arch pci-v4.15-changes 2017-11-15 15:01:28 -08:00
block Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-11-14 16:07:26 -08:00
certs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
drivers scsi: bfa: fix access to bfad_im_port_s 2017-11-29 00:17:23 -05:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs Modules updates for v4.15 2017-11-15 13:46:33 -08:00
include scsi: libsas: align sata_device's rps_resp on a cacheline 2017-11-21 23:06:32 -05:00
init pci-v4.15-changes 2017-11-15 15:01:28 -08:00
ipc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2017-11-15 14:29:44 -08:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
mm Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2017-11-15 14:17:11 -08:00
net Modules updates for v4.15 2017-11-15 13:46:33 -08:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
security Modules updates for v4.15 2017-11-15 13:46:33 -08:00
sound sound updates for 4.15-rc1 2017-11-14 18:01:46 -08:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore 2017-11-08 11:20:24 -06:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS pci-v4.15-changes 2017-11-15 15:01:28 -08:00
Makefile RISC-V Port for Linux 4.15 v9 2017-11-15 10:49:15 -08:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.