linux-kernel - [PATCH v3 02/10] MIPS: mark mult_sh_align_mod() as __always

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Date:   Tue, 23 Apr 2019 12:20:58 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-arch <linux-arch@...r.kernel.org>
Cc:     linux-s390@...r.kernel.org,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Arnd Bergmann <arnd@...db.de>, linuxppc-dev@...ts.ozlabs.org,
        x86@...nel.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Christophe Leroy <christophe.leroy@....fr>,
        Mathieu Malaterre <malat@...ian.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: [PATCH v3 02/10] MIPS: mark mult_sh_align_mod() as __always_inline

This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
place. We need to eliminate potential issues beforehand.

If it is enabled for mips, the following error is reported:

arch/mips/kernel/cpu-bugs64.c: In function 'mult_sh_align_mod.constprop':
arch/mips/kernel/cpu-bugs64.c:33:2: error: asm operand 1 probably doesn't match constraints [-Werror]
  asm volatile(
  ^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: asm operand 1 probably doesn't match constraints [-Werror]
  asm volatile(
  ^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: impossible constraint in 'asm'
  asm volatile(
  ^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: impossible constraint in 'asm'
  asm volatile(
  ^~~

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

Changes in v3: None
Changes in v2:
  - split into a separate patch

 arch/mips/kernel/cpu-bugs64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index bada74af7641..c04b97aace4a 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -42,8 +42,8 @@ static inline void align_mod(const int align, const int mod)
 		: "n"(align), "n"(mod));
 }
 
-static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
-				     const int align, const int mod)
+static __always_inline void mult_sh_align_mod(long *v1, long *v2, long *w,
+					      const int align, const int mod)
 {
 	unsigned long flags;
 	int m1, m2;
-- 
2.17.1