From dfb5f8cbd5992d5769edfd3e059fad9e0b8bdafb Mon Sep 17 00:00:00 2001 From: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Date: Fri, 29 Sep 2023 22:53:37 +0530 Subject: [PATCH] powerpc/pseries: Remove unused r0 in the hcall tracing code In the plpar_hcall trace code, currently we use r0 to store the value 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> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230929172337.7906-2-atrajeev@linux.vnet.ibm.com --- arch/powerpc/platforms/pseries/hvCall.S | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S index 2addf2ea03f09..2b0cac6fb61f8 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 -- 2.30.2