From nobody Wed Dec 17 09:08:13 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 82D6B2620C0 for ; Mon, 24 Mar 2025 13:34:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742823258; cv=none; b=SoqYDFFrkClR+v23fEtpcgVSTGszvK6YshN+XHAA1xfK5oNChVrGWk9WUtmokXu7S7KKFoztjdvI2mBGKDNpoGv3HFDaq5pU7geV82YbozlxCom6xqULwKhCPpmlN/gXb2guOPEFrxYFZ0dzitdn+bf2bm7JL8WkUD9OFheIBC4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742823258; c=relaxed/simple; bh=wEw51A1Z/Kflsa07gSPSJJT92gdgpGM02PW8kbXEZCQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=n9/qXq0fTaaMuWNr9VD9yZwGKclg3PLlqzV4nEKUX4YefL8axznkU4pdkUIfYW7CepQoLUoqqCXVExJIqbpJ55q1rFC2fsjo7lVEqo3xSNaQ90/bQWq6B3Hdw0LG32/2UdcZ3NLNN0k/7PAD+1fTtaXzYZJ4J7Ry5zdPcTHy+uM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Iodmci6j; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Y+zbpVoo; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Iodmci6j"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Y+zbpVoo" From: "Ahmed S. Darwish" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1742823253; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wIM1/UO/olTqtQhk58W5MQceA/7wLYg5WiO97m4eSsc=; b=Iodmci6jVXo4y1R7i82PzWX+5Yhq3xRmUKjc8Pj+k81u6LljfExesn6YjhHU8SbanHIWIf gbhO+qCu/UUz2QRv/UANxr+sBKp3kR+1TmzOU6f1M0K39G+a/b1Q33xbdBgDDY/SpdD4g+ 24EW6iEM87zFU8Yb6YlG9mIYXL21ALLmFEe3UiUac4vYzj8KekbRhyUYlt1T52t8pMf+Ow LMGRIBmdqM+a+fwtYyE0kEddY1FOZt5dIX3NXqCBhpVUhmmMNJzssl3V1G++X6+PlRG8UB 239hzGdIOCzcHmir0mxpqq0+nA+1g2cSBHIgEsj4P2tbC1mgss4XVESGv/gfgA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1742823253; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wIM1/UO/olTqtQhk58W5MQceA/7wLYg5WiO97m4eSsc=; b=Y+zbpVooOk5oxehUpv9EURrmkNQ5g5prG/+JgKM1oRsBeeiIx5UjTVvXBxY+0ieQmaEQs+ TlL1zSx5pXKkEOAg== To: Ingo Molnar , Borislav Petkov , Dave Hansen Cc: Thomas Gleixner , Andrew Cooper , "H. Peter Anvin" , John Ogness , x86@kernel.org, x86-cpuid@lists.linux.dev, LKML , "Ahmed S. Darwish" Subject: [PATCH v4 14/29] x86/cacheinfo: Use sysfs_emit() for sysfs attributes show() Date: Mon, 24 Mar 2025 14:33:09 +0100 Message-ID: <20250324133324.23458-15-darwi@linutronix.de> In-Reply-To: <20250324133324.23458-1-darwi@linutronix.de> References: <20250324133324.23458-1-darwi@linutronix.de> 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" Per Documentation/filesystems/sysfs.rst, a sysfs attribute's show() method should only use sysfs_emit() or sysfs_emit_at() when returning values to user space. Use sysfs_emit() for the AMD L3 cache sysfs attributes cache_disable_0, cache_disable_1, and subcaches. Signed-off-by: Ahmed S. Darwish --- arch/x86/kernel/cpu/amd_cache_disable.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/amd_cache_disable.c b/arch/x86/kernel/cpu/= amd_cache_disable.c index 6d53aee0d869..d860ad3f8a5a 100644 --- a/arch/x86/kernel/cpu/amd_cache_disable.c +++ b/arch/x86/kernel/cpu/amd_cache_disable.c @@ -66,9 +66,9 @@ static ssize_t show_cache_disable(struct cacheinfo *ci, c= har *buf, unsigned int =20 index =3D amd_get_l3_disable_slot(nb, slot); if (index >=3D 0) - return sprintf(buf, "%d\n", index); + return sysfs_emit(buf, "%d\n", index); =20 - return sprintf(buf, "FREE\n"); + return sysfs_emit(buf, "FREE\n"); } =20 #define SHOW_CACHE_DISABLE(slot) \ @@ -189,7 +189,7 @@ static ssize_t subcaches_show(struct device *dev, struc= t device_attribute *attr, struct cacheinfo *ci =3D dev_get_drvdata(dev); int cpu =3D cpumask_first(&ci->shared_cpu_map); =20 - return sprintf(buf, "%x\n", amd_get_subcaches(cpu)); + return sysfs_emit(buf, "%x\n", amd_get_subcaches(cpu)); } =20 static ssize_t subcaches_store(struct device *dev, --=20 2.48.1