linux-kernel - [PATCH AUTOSEL 5.15 08/16] s390/purgatory: disable branch profiling

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Message-Id: <20230616102721.673775-8-sashal@kernel.org>
Date:   Fri, 16 Jun 2023 06:27:11 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Alexander Gordeev <agordeev@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Sasha Levin <sashal@...nel.org>, hca@...ux.ibm.com,
        paul.walmsley@...ive.com, palmer@...belt.com,
        aou@...s.berkeley.edu, masahiroy@...nel.org, svens@...ux.ibm.com,
        nathan@...nel.org, linux-s390@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.15 08/16] s390/purgatory: disable branch profiling

From: Alexander Gordeev <agordeev@...ux.ibm.com>

[ Upstream commit 03c5c83b70dca3729a3eb488e668e5044bd9a5ea ]

Avoid linker error for randomly generated config file that
has CONFIG_BRANCH_PROFILE_NONE enabled and make it similar
to riscv, x86 and also to commit 4bf3ec384edf ("s390: disable
branch profiling for vdso").

Reviewed-by: Vasily Gorbik <gor@...ux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@...ux.ibm.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/s390/purgatory/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 360ada80d20c3..d22ec8acb13c5 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -26,6 +26,7 @@ KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
 KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common
 KBUILD_CFLAGS += -fno-stack-protector
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 KBUILD_CFLAGS += $(CLANG_FLAGS)
 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
 KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
-- 
2.39.2