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authorKevin Mitchell <kevmitch@arista.com>2021-08-19 05:29:39 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-08-19 08:40:22 +0300
commitd1f278da6b11585f05b2755adfc8851cbf14a1ec (patch)
tree0a9da526156ec396883436b917e8590644f76c77 /Documentation/fault-injection
parent5353dd72f99207e8118a766847df8d60bb559940 (diff)
downloadlinux-d1f278da6b11585f05b2755adfc8851cbf14a1ec.tar.xz
lkdtm: replace SCSI_DISPATCH_CMD with SCSI_QUEUE_RQ
When scsi_dispatch_cmd was moved to scsi_lib.c and made static, some compilers (i.e., at least gcc 8.4.0) decided to compile this inline. This is a problem for lkdtm.ko, which inserted a kprobe on this function for the SCSI_DISPATCH_CMD crashpoint. Move this crashpoint one function up the call chain to scsi_queue_rq. Though this is also a static function, it should never be inlined because it is assigned as a structure entry. Therefore, kprobe_register should always be able to find it. Fixes: 82042a2cdb55 ("scsi: move scsi_dispatch_cmd to scsi_lib.c") Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kevin Mitchell <kevmitch@arista.com> Link: https://lore.kernel.org/r/20210819022940.561875-2-kevmitch@arista.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/fault-injection')
-rw-r--r--Documentation/fault-injection/provoke-crashes.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/fault-injection/provoke-crashes.rst b/Documentation/fault-injection/provoke-crashes.rst
index a20ba5d93932..18de17354206 100644
--- a/Documentation/fault-injection/provoke-crashes.rst
+++ b/Documentation/fault-injection/provoke-crashes.rst
@@ -29,7 +29,7 @@ recur_count
cpoint_name
Where in the kernel to trigger the action. It can be
one of INT_HARDWARE_ENTRY, INT_HW_IRQ_EN, INT_TASKLET_ENTRY,
- FS_DEVRW, MEM_SWAPOUT, TIMERADD, SCSI_DISPATCH_CMD,
+ FS_DEVRW, MEM_SWAPOUT, TIMERADD, SCSI_QUEUE_RQ,
IDE_CORE_CP, or DIRECT
cpoint_type