From nobody Mon Feb 9 05:38:38 2026 Received: from out-187.mta0.migadu.com (out-187.mta0.migadu.com [91.218.175.187]) (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 2A41725E444 for ; Mon, 10 Feb 2025 22:37:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739227078; cv=none; b=h7idXS4K3GrFl6p47WOaKRTVEYREvwgUoXhlBMNYvNYCBUhUKopp7ikbz3Mq3iWH+P0CuC32pGuXLwMLEFk3JJrKg25suZOJPyv65S7bE5D56bIZPKRf/+SIdB9I+4DVI7w61sD7XRXgeb5xAgs27HLwl6z7OojI8QTiwCeVYXc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739227078; c=relaxed/simple; bh=mlCF+3bzZOAa8f3gAfZzRMJclFUXFMrrk4oBZGG7YHg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cilaZ4WDgwxaxfwVhsuQ9MdMBLh3PZ+o07ikxLYopzZaDBaMTM3RKuQm9p/QCXNDtE3uKN0Y0XmbtGoNbOcDZ8SODybO2TBrZP5VDs3gWvbnJ8VybT5JzhK99hiaMTQbeLPXOPEvQVL49eA539pvkBaYeswXblLF1pi78E5pQqA= 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=lfUekzGa; arc=none smtp.client-ip=91.218.175.187 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="lfUekzGa" 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=1739227074; 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=Brim4R+j1jrxpbFoMdiijr4HsKQ5qnKt7XsTd8hfjR4=; b=lfUekzGaOH4UnYI5HuG/u7a1EDH//PP0nnR5JYxDOv9IJ9GV0zwbuVjg/tHNQDkJZfZl1N 3YVrT0AEpM3nxHU2U5H74uC3UmXkSx4U1Tuxnl3hTh1u9Vc6VTk1uZw/fDopCGrEdMxez+ ncTcrrHHQzObidJ07SQQ3v/BnY/+rnw= From: Thorsten Blum To: Herbert Xu , "David S. Miller" , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Giovanni Cabiddu , Chen Ridong Cc: Thorsten Blum , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] crypto: bcm - set memory to zero only once Date: Mon, 10 Feb 2025 23:36:44 +0100 Message-ID: <20250210223647.362921-2-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 kmalloc_array() instead of kcalloc() because sg_init_table() already sets the memory to zero. This avoids zeroing the memory twice. Signed-off-by: Thorsten Blum --- drivers/crypto/bcm/cipher.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c index 9e6798efbfb7..d4da2b5b595f 100644 --- a/drivers/crypto/bcm/cipher.c +++ b/drivers/crypto/bcm/cipher.c @@ -140,8 +140,8 @@ spu_skcipher_rx_sg_create(struct brcm_message *mssg, struct iproc_ctx_s *ctx =3D rctx->ctx; u32 datalen; /* Number of bytes of response data expected */ =20 - mssg->spu.dst =3D kcalloc(rx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.dst =3D kmalloc_array(rx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (!mssg->spu.dst) return -ENOMEM; =20 @@ -204,8 +204,8 @@ spu_skcipher_tx_sg_create(struct brcm_message *mssg, u32 datalen; /* Number of bytes of response data expected */ u32 stat_len; =20 - mssg->spu.src =3D kcalloc(tx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.src =3D kmalloc_array(tx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (unlikely(!mssg->spu.src)) return -ENOMEM; =20 @@ -531,8 +531,8 @@ spu_ahash_rx_sg_create(struct brcm_message *mssg, struct scatterlist *sg; /* used to build sgs in mbox message */ struct iproc_ctx_s *ctx =3D rctx->ctx; =20 - mssg->spu.dst =3D kcalloc(rx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.dst =3D kmalloc_array(rx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (!mssg->spu.dst) return -ENOMEM; =20 @@ -586,8 +586,8 @@ spu_ahash_tx_sg_create(struct brcm_message *mssg, u32 datalen; /* Number of bytes of response data expected */ u32 stat_len; =20 - mssg->spu.src =3D kcalloc(tx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.src =3D kmalloc_array(tx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (!mssg->spu.src) return -ENOMEM; =20 @@ -1076,8 +1076,8 @@ static int spu_aead_rx_sg_create(struct brcm_message = *mssg, /* have to catch gcm pad in separate buffer */ rx_frag_num++; =20 - mssg->spu.dst =3D kcalloc(rx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.dst =3D kmalloc_array(rx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (!mssg->spu.dst) return -ENOMEM; =20 @@ -1178,8 +1178,8 @@ static int spu_aead_tx_sg_create(struct brcm_message = *mssg, u32 assoc_offset =3D 0; u32 stat_len; =20 - mssg->spu.src =3D kcalloc(tx_frag_num, sizeof(struct scatterlist), - rctx->gfp); + mssg->spu.src =3D kmalloc_array(tx_frag_num, sizeof(struct scatterlist), + rctx->gfp); if (!mssg->spu.src) return -ENOMEM; =20 --=20 2.48.1