From nobody Wed Nov 27 18:32:42 2024 Received: from out-182.mta0.migadu.com (out-182.mta0.migadu.com [91.218.175.182]) (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 D447918CC13 for ; Tue, 8 Oct 2024 11:21:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728386472; cv=none; b=uMVDTxvQrUfdof/urRmtEG5CSeYq+479K5TYVsLf/0oEXR0iUVCnWcVCySmcrfUtc2rw4SFhDbvenvIE7XDSEWMjR3GyfH3IMMWLsPdNtEvnvRf1PUZeVBXBk//+e13n4HtlzWW4F2zgLxcbuybrfxABPEnIx10r+Wcopk4qR44= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728386472; c=relaxed/simple; bh=3Ct1mGZN8YLbso2pvrthDD0bQGWLsW98R7kRII4+TaQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=KLd5OhEskFYkTIK6dAwAovS9Ma0i0uRtlPtx6/E2SXod1jB1KrOkwQclwmNyP8BO5XkXjRkeBACB4EDhDHwfFU7ziEcR7P8kRoAZQeT8a0F//tuSXtLOvzcIoychV9EmFIGVCR6yGJuPufpg2i0BeWQH+nIyZY2nDGtXS3N8Xb0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=QPpo/rdI; arc=none smtp.client-ip=91.218.175.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="QPpo/rdI" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1728386467; 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; bh=+++WwySE+xnyLVuZgiEzgYGzVYTI3PWElgcf31N76YY=; b=QPpo/rdIXsQ6skAszfc2rWkXn0BuLPW2zvIh19DiynFW7J6eELwfc76RSmHL2BzOXfAIYm UpxB22OQJEorBLcRTkqNT1FB/lS28FRZZFsApnWD+B0GIPljGY0Sir+YlQObwH0A7ZhrO8 ncdePiNU2DZEoMJ/45sNuOU9QU4VPb8= From: Thorsten Blum To: Satish Kharat , Sesidhar Baddela , Karan Tilak Kumar , "James E.J. Bottomley" , "Martin K. Petersen" Cc: Thorsten Blum , Johannes Thumshirn , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3] scsi: fnic: Use vcalloc() instead of vmalloc() and memset(0) Date: Tue, 8 Oct 2024 13:19:28 +0200 Message-ID: <20241008111928.49004-2-thorsten.blum@linux.dev> 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 X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" Use vcalloc() instead of vmalloc() followed by memset(0) to simplify the functions fnic_trace_buf_init() and fnic_fc_trace_init(). Compile-tested only. Cc: Johannes Thumshirn Signed-off-by: Thorsten Blum Reviewed-by: Johannes Thumshirn --- Changes in v2: - Remove unsigned long cast as suggested by Johannes Thumshirn - Link to v1: https://lore.kernel.org/linux-kernel/20241007115840.2239-6-th= orsten.blum@linux.dev/ Changes in v3: - Keep the unsigned long cast removed in v2 - Use vcalloc() instead of vzalloc() as suggested by Johannes Thumshirn - Compile-tested again - Link to v2: https://lore.kernel.org/linux-kernel/20241008095152.1831-2-th= orsten.blum@linux.dev/ --- drivers/scsi/fnic/fnic_trace.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c index aaa4ea02fb7c..e5e0c0492f23 100644 --- a/drivers/scsi/fnic/fnic_trace.c +++ b/drivers/scsi/fnic/fnic_trace.c @@ -485,8 +485,7 @@ int fnic_trace_buf_init(void) } =20 fnic_trace_entries.page_offset =3D - vmalloc(array_size(fnic_max_trace_entries, - sizeof(unsigned long))); + vcalloc(fnic_max_trace_entries, sizeof(unsigned long)); if (!fnic_trace_entries.page_offset) { printk(KERN_ERR PFX "Failed to allocate memory for" " page_offset\n"); @@ -497,8 +496,6 @@ int fnic_trace_buf_init(void) err =3D -ENOMEM; goto err_fnic_trace_buf_init; } - memset((void *)fnic_trace_entries.page_offset, 0, - (fnic_max_trace_entries * sizeof(unsigned long))); fnic_trace_entries.wr_idx =3D fnic_trace_entries.rd_idx =3D 0; fnic_buf_head =3D fnic_trace_buf_p; =20 @@ -559,8 +556,7 @@ int fnic_fc_trace_init(void) fc_trace_max_entries =3D (fnic_fc_trace_max_pages * PAGE_SIZE)/ FC_TRC_SIZE_BYTES; fnic_fc_ctlr_trace_buf_p =3D - (unsigned long)vmalloc(array_size(PAGE_SIZE, - fnic_fc_trace_max_pages)); + (unsigned long)vcalloc(fnic_fc_trace_max_pages, PAGE_SIZE); if (!fnic_fc_ctlr_trace_buf_p) { pr_err("fnic: Failed to allocate memory for " "FC Control Trace Buf\n"); @@ -568,13 +564,9 @@ int fnic_fc_trace_init(void) goto err_fnic_fc_ctlr_trace_buf_init; } =20 - memset((void *)fnic_fc_ctlr_trace_buf_p, 0, - fnic_fc_trace_max_pages * PAGE_SIZE); - /* Allocate memory for page offset */ fc_trace_entries.page_offset =3D - vmalloc(array_size(fc_trace_max_entries, - sizeof(unsigned long))); + vcalloc(fc_trace_max_entries, sizeof(unsigned long)); if (!fc_trace_entries.page_offset) { pr_err("fnic:Failed to allocate memory for page_offset\n"); if (fnic_fc_ctlr_trace_buf_p) { @@ -585,8 +577,6 @@ int fnic_fc_trace_init(void) err =3D -ENOMEM; goto err_fnic_fc_ctlr_trace_buf_init; } - memset((void *)fc_trace_entries.page_offset, 0, - (fc_trace_max_entries * sizeof(unsigned long))); =20 fc_trace_entries.rd_idx =3D fc_trace_entries.wr_idx =3D 0; fc_trace_buf_head =3D fnic_fc_ctlr_trace_buf_p; --=20 2.46.2