diff mbox series

[2/2] powerpc/platforms/pseries: Remove unused r0 in the hcall tracing code

Message ID 20230929172337.7906-2-atrajeev@linux.vnet.ibm.com (mailing list archive)
State Accepted
Commit dfb5f8cbd5992d5769edfd3e059fad9e0b8bdafb
Headers show
Series [1/2] powerpc/platforms/pseries: Fix STK_PARAM access in the hcall tracing code | expand

Checks

Context Check Description
snowpatch_ozlabs/github-powerpc_selftests success Successfully ran 8 jobs.
snowpatch_ozlabs/github-powerpc_ppctests success Successfully ran 8 jobs.
snowpatch_ozlabs/github-powerpc_kernel_qemu success Successfully ran 23 jobs.
snowpatch_ozlabs/github-powerpc_sparse success Successfully ran 4 jobs.
snowpatch_ozlabs/github-powerpc_clang success Successfully ran 6 jobs.

Commit Message

Athira Rajeev Sept. 29, 2023, 5:23 p.m. UTC 
In the plpar_hcall trace code, currently we use r0
to store the ORed result of r4. But this value is not
used subsequently in the code. Hence remove this unused
save to r0 in plpar_hcall and plpar_hcall9

Suggested-by: Naveen N Rao <naveen@kernel.org>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/hvCall.S | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 2addf2ea03f0..2b0cac6fb61f 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -184,8 +184,6 @@  _GLOBAL_TOC(plpar_hcall)
 plpar_hcall_trace:
 	HCALL_INST_PRECALL(R5)
 
-	mr	r0,r4
-
 	mr	r4,r5
 	mr	r5,r6
 	mr	r6,r7
@@ -295,8 +293,6 @@  _GLOBAL_TOC(plpar_hcall9)
 plpar_hcall9_trace:
 	HCALL_INST_PRECALL(R5)
 
-	mr	r0,r4
-
 	mr	r4,r5
 	mr	r5,r6
 	mr	r6,r7