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 63F8D2ECD2F; Tue, 17 Jun 2025 15:42:26 +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=1750174946; cv=none; b=i8H/oTmMhGkB2Eb+z9bkqonkR2X3u51edvh4cOd/3UjTmSJm5DHdael8hu0Z3qZSI0WVyVnwtGOsSuFW5iGkUC/qXBN4WfdT67gJMWRcovnifVj1tR7wd6IVuneTiCYYVBScQaWJVDvaU7GqPTvH61D9MkmFWS6TN8Lks0BUjnA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750174946; c=relaxed/simple; bh=ecTFWCd5Nm+4orZv0ROOt3wbbkm7n5I0eVNQhooTIZs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fYGsZvgHGS3WKQtsiOVytm/6G9JKIr6EBuokiyli5oRtyEwyzjkRl8D5Z9lbE/KcMziej2NQVOB3G4gSzfD6/dTltgDl9CoPUi46LinneBW1+U4ZIurSxor2+LwKcV5RXLiu4g3vVmm5w2Mz0W5kCLMhXlE34KunmvIDOVoL79c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yFHwiLhb; 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="yFHwiLhb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CA2E1C4CEE7; Tue, 17 Jun 2025 15:42:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750174946; bh=ecTFWCd5Nm+4orZv0ROOt3wbbkm7n5I0eVNQhooTIZs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yFHwiLhbfzUEj1y2VkBuFQ5ggb8CBGsBcC4KJZ/WwO1RrX4jjgIHJSbOBHW1DW0WI RUiBkj5fdNd7OILInBre7PfibAuzbyvMkQmYLnS0CGf41aOVZD6Jm+K9/Q9dmCzH/t XVmSMJrmk2oEhq9+2Ef2+ObSpMGggREZGwvxisUg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Herbert Xu , Sasha Levin Subject: [PATCH 6.15 036/780] crypto: marvell/cesa - Avoid empty transfer descriptor Date: Tue, 17 Jun 2025 17:15:44 +0200 Message-ID: <20250617152452.970543914@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152451.485330293@linuxfoundation.org> References: <20250617152451.485330293@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Herbert Xu [ Upstream commit 1bafd82d9a40cf09c6c40f1c09cc35b7050b1a9f ] The user may set req->src even if req->nbytes == 0. If there is no data to hash from req->src, do not generate an empty TDMA descriptor. Fixes: db509a45339f ("crypto: marvell/cesa - add TDMA support") Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/marvell/cesa/hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/marvell/cesa/hash.c b/drivers/crypto/marvell/cesa/hash.c index f150861ceaf69..6815eddc90681 100644 --- a/drivers/crypto/marvell/cesa/hash.c +++ b/drivers/crypto/marvell/cesa/hash.c @@ -663,7 +663,7 @@ static int mv_cesa_ahash_dma_req_init(struct ahash_request *req) if (ret) goto err_free_tdma; - if (iter.src.sg) { + if (iter.base.len > iter.src.op_offset) { /* * Add all the new data, inserting an operation block and * launch command between each full SRAM block-worth of -- 2.39.5