mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 13:53:33 +00:00
powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n
[ Upstream commit750bd41aea
] With JUMP_LABEL=n, hcall_tracepoint_refcount's address is being tested instead of its value. This results in the tracing slowpath always being taken unnecessarily. Fixes:9a10ccb29c
("powerpc/pseries: move hcall_tracepoint_refcount out of .toc") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230509091600.70994-1-npiggin@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
ad4293e42b
commit
5287fa4a0c
1 changed files with 1 additions and 0 deletions
|
@ -91,6 +91,7 @@ BEGIN_FTR_SECTION; \
|
|||
b 1f; \
|
||||
END_FTR_SECTION(0, 1); \
|
||||
LOAD_REG_ADDR(r12, hcall_tracepoint_refcount) ; \
|
||||
ld r12,0(r12); \
|
||||
std r12,32(r1); \
|
||||
cmpdi r12,0; \
|
||||
bne- LABEL; \
|
||||
|
|
Loading…
Reference in a new issue