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[68.180.127.24]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3074df48671sm16237994eec.24.2026.06.07.22.09.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Jun 2026 22:09:32 -0700 (PDT) From: Ethan Nelson-Moore To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Ethan Nelson-Moore , Russell King , Arnd Bergmann , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Subject: [PATCH] ARM: arch/arm/kernel/signal.c: resolve set-but-not-used warning Date: Sun, 7 Jun 2026 22:09:24 -0700 Message-ID: <20260608050926.88446-1-enelsonmoore@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit If neither CONFIG_IWMMXT nor CONFIG_VFP are enabled (which is the case, for example, in rpc_defconfig), the variable "aux" is set but not used, which generates a warning during W=1 builds. Resolve this issue by only defining the variable if it will be used. Signed-off-by: Ethan Nelson-Moore --- arch/arm/kernel/signal.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 7be9188d83d9..1d015b696a76 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -140,7 +140,9 @@ static int restore_vfp_context(char __user **auxp) static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) { struct sigcontext context; +#if defined(CONFIG_IWMMXT) || defined(CONFIG_VFP) char __user *aux; +#endif sigset_t set; int err; @@ -171,6 +173,7 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) err |= !valid_user_regs(regs); +#if defined(CONFIG_IWMMXT) || defined(CONFIG_VFP) aux = (char __user *) sf->uc.uc_regspace; #ifdef CONFIG_IWMMXT if (err == 0) @@ -180,6 +183,7 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) if (err == 0) err |= restore_vfp_context(&aux); #endif +#endif /* defined(CONFIG_IWMMXT) || defined(CONFIG_VFP) */ return err; } -- 2.43.0