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([193.77.86.199]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5e816afe26bsm1651871a12.72.2025.03.14.01.14.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Mar 2025 01:14:37 -0700 (PDT) From: Uros Bizjak To: x86@kernel.org, linux-kernel@vger.kernel.org Cc: Uros Bizjak , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" Subject: [PATCH] x86/asm: Use alternative_input() in amd_clear_divider() Date: Fri, 14 Mar 2025 09:14:38 +0100 Message-ID: <20250314081453.565859-1-ubizjak@gmail.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use higher-level API to declare assembly with alternatives. bloat-o-meter reports no code size changes. Signed-off-by: Uros Bizjak Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: "H. Peter Anvin" --- arch/x86/include/asm/processor.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/proces= sor.h index 5d2f7e5aff26..b4b5aa46f68b 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -707,8 +707,9 @@ static inline u32 per_cpu_l2c_id(unsigned int cpu) */ static __always_inline void amd_clear_divider(void) { - asm volatile(ALTERNATIVE("", "div %2\n\t", X86_BUG_DIV0) - :: "a" (0), "d" (0), "r" (1)); + alternative_input("", "div %[den]", + X86_BUG_DIV0, + "a" (0), "d" (0), [den] "r" (1)); } =20 extern void amd_check_microcode(void); --=20 2.48.1