From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D547E216E3B; Thu, 12 Dec 2024 16:44:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734021855; cv=none; b=HckzaVJ4dhGmMoDcQ6k58npghIxx1Tv/LK0q/QZdefoRZUlTkEd0orm8GXBv6wytg6ESW87EKj2d3LAG6560TCFqchYbZtYfZRfqNdy8T1dMLplurzocNp0ET3R6rWELGVLkk+lDcsLH95GAH7dq3x84Igfw5IlIaxd6ziQJds8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734021855; c=relaxed/simple; bh=9z81GhMaMVV6BUJaSER17Ob46bS8EcXUpIoPcJX3oYE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IjJNGhRYFlmq0W5Txki4l17HQQavMSj52hVabiktDx3nrQCumAdSOICk2PFbcmKzOFdHDUfYT+827Xz7gHUwyXdezwt5aPjY4YwL/J2QwXVJOpUq8mARdiwVOlojCN3OA+eyQ3dmSfqVsTGuBUaoTv2H950NjMExUmUM5anDpS8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=WoMvQJzX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="WoMvQJzX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 448C5C4CED0; Thu, 12 Dec 2024 16:44:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734021855; bh=9z81GhMaMVV6BUJaSER17Ob46bS8EcXUpIoPcJX3oYE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WoMvQJzXVVjN3bgbfVnRV3L2cLD/XkDs36Q+5NOeTkBn24o0jlQc1nGuulx72qwcf P+GdEvxTQ7CwuW28rI27Iq6f5yBmV2GnG9c4+3G7eNLGetlIsI2gNZSEiCUhuxh91V Wm+aC8MBAjq/iR4Grxl5435hSnolvvdlmDPmIfFs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jonas Gorski , "Maciej W. Rozycki" , Thomas Bogendoerfer , Sasha Levin Subject: [PATCH 5.15 081/565] mips: asm: fix warning when disabling MIPS_FP_SUPPORT Date: Thu, 12 Dec 2024 15:54:36 +0100 Message-ID: <20241212144314.687662814@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144311.432886635@linuxfoundation.org> References: <20241212144311.432886635@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonas Gorski [ Upstream commit da09935975c8f8c90d6f57be2422dee5557206cd ] When MIPS_FP_SUPPORT is disabled, __sanitize_fcr31() is defined as nothing, which triggers a gcc warning: In file included from kernel/sched/core.c:79: kernel/sched/core.c: In function 'context_switch': ./arch/mips/include/asm/switch_to.h:114:39: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] 114 | __sanitize_fcr31(next); \ | ^ kernel/sched/core.c:5316:9: note: in expansion of macro 'switch_to' 5316 | switch_to(prev, next, prev); | ^~~~~~~~~ Fix this by providing an empty body for __sanitize_fcr31() like one is defined for __mips_mt_fpaff_switch_to(). Fixes: 36a498035bd2 ("MIPS: Avoid FCSR sanitization when CONFIG_MIPS_FP_SUPPORT=n") Signed-off-by: Jonas Gorski Reviewed-by: Maciej W. Rozycki Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/include/asm/switch_to.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/switch_to.h b/arch/mips/include/asm/switch_to.h index a4374b4cb88fd..d6ccd53440213 100644 --- a/arch/mips/include/asm/switch_to.h +++ b/arch/mips/include/asm/switch_to.h @@ -97,7 +97,7 @@ do { \ } \ } while (0) #else -# define __sanitize_fcr31(next) +# define __sanitize_fcr31(next) do { (void) (next); } while (0) #endif /* -- 2.43.0