From nobody Mon May 25 03:46:53 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 39EEB3E0C44; Tue, 19 May 2026 08:34:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779179669; cv=none; b=LsWsaf+AVudSVcmsvioUbKD7d1snbOfCM5Gj8Ys20pt+qbl84klxKRQmN9H/5KbV+htSnIGwpJz4z2Ei6W2qCKsa/YX5D8l0J3OdhJBgQcHMrVF/w+kpTtIBTfwojGB0WFu7Wd+GS6bFTZIYliMrkBq5un0tzsqpL1x4TF4NFcw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779179669; c=relaxed/simple; bh=aGm1daHc6UTVMt5lJ3xDp8MadiAYEw+6TCSXQ91v2ik=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=rue37j8/WkNy6CZhgkhRQhjEVhYJkPXpj74Zzocy3CBmmljY5YQSJvo6EVVDJ+w4uTWj4LkhIT9Z94DVqrs0XOGVlRU4h3kQICEeX8gOTdaLcX934Y9/37w5IYeTPCHJuLX8hxe9NUl495/Oglz+lcncQ8xZs4j0pGJRtTbkdTs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 864427ce535d11f1aa26b74ffac11d73-20260519 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:8c425427-e475-4b94-8b50-8b9b90ec0538,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:e7bac3a,CLOUDID:e8d12160ce2cfd3aa68a9b66744c0bfd,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|850|865|898,TC:nil,Content:0|15|50,E DM:-3,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA :0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 864427ce535d11f1aa26b74ffac11d73-20260519 Received: from localhost [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 977456710; Tue, 19 May 2026 16:34:17 +0800 From: Yu Peng To: Steven Rostedt , Masami Hiramatsu Cc: Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Yu Peng Subject: [PATCH] tracing: Use krealloc_array() for trace option array growth Date: Tue, 19 May 2026 16:34:09 +0800 Message-Id: <20260519083409.3885032-1-pengyu@kylinos.cn> X-Mailer: git-send-email 2.25.1 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 krealloc_array() when growing tr->topts instead of open-coding the size calculation in krealloc(). This makes the resize path use the helper intended for array allocations and avoids manual multiplication of the element count and element size. Signed-off-by: Yu Peng --- kernel/trace/trace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 6eb4d3097a4d5..bde22d693d2e4 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -7928,8 +7928,8 @@ create_trace_option_files(struct trace_array *tr, str= uct tracer *tracer, if (!topts) return 0; =20 - tr_topts =3D krealloc(tr->topts, sizeof(*tr->topts) * (tr->nr_topts + 1), - GFP_KERNEL); + tr_topts =3D krealloc_array(tr->topts, tr->nr_topts + 1, sizeof(*tr->topt= s), + GFP_KERNEL); if (!tr_topts) { kfree(topts); return -ENOMEM; --=20 2.43.0