linux-kernel - [PATCH] powerpc/32: Curb objtool unannotated intra-function call warning

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Message-Id: <20221215115258.80810-1-sv@linux.ibm.com>
Date:   Thu, 15 Dec 2022 17:22:58 +0530
From:   Sathvika Vasireddy <sv@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     jpoimboe@...hat.com, peterz@...radead.org, aik@...abs.ru,
        mpe@...erman.id.au, mingo@...hat.com, christophe.leroy@...roup.eu,
        mbenes@...e.cz, npiggin@...il.com, chenzhongjin@...wei.com,
        sfr@...b.auug.org.au, naveen.n.rao@...ux.vnet.ibm.com,
        sv@...ux.ibm.com
Subject: [PATCH] powerpc/32: Curb objtool unannotated intra-function call warning

objtool throws the following warning:
arch/powerpc/kexec/relocate_32.o: warning: objtool: .text+0x2bc: unannotated intra-function call

Fix this warning by annotating intra-function call, using
ANNOTATE_INTRA_FUNCTION_CALL macro, to indicate that the branch target
is valid.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Sathvika Vasireddy <sv@...ux.ibm.com>
---
 arch/powerpc/kexec/relocate_32.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/kexec/relocate_32.S b/arch/powerpc/kexec/relocate_32.S
index d9f0dd9b34ff..104c9911f406 100644
--- a/arch/powerpc/kexec/relocate_32.S
+++ b/arch/powerpc/kexec/relocate_32.S
@@ -8,6 +8,7 @@
  * 		Author: Suzuki Poulose <suzuki@...ibm.com>
  */
 
+#include <linux/objtool.h>
 #include <asm/reg.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
@@ -349,6 +350,7 @@ write_utlb:
 	cmpwi	r10, PPC47x_TLB0_4K
 	bne	0f
 	li	r10, 0x1000			/* r10 = 4k */
+	ANNOTATE_INTRA_FUNCTION_CALL
 	bl	1f
 
 0:
-- 
2.31.1