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 524ED253359; Mon, 23 Jun 2025 13:18:30 +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=1750684710; cv=none; b=Rh/fT7rlbkPOArnr0GXA3o5Ax3PNi0e2mZnsxcIap5ptTxLpKvzzS6ploakjLk8VE6nUUt+ByBWmnSt5+hWjoS09MN4Ncw65Y8BsEVUPIo5BrQSurGggTvXhgIJb+8XrTX4lIGRSCRK4ZG8kurxr+IvQ/r0SnHnD1fgyaRuNheI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684710; c=relaxed/simple; bh=hN9j08jTKyI0k0FLerbeH7Vt/AcvgbW+WgHPUHw3t1U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ggR9VlO88hwBE1s0gWWGyt1Ux5CzNSkP00v+cPn9fInwGhJ5r2ojq0WKNM9rDJZdznflEhCbbQOh0ZiGRowf+Pj7uAoa2+44WthpN6DRAdHO+xpP6UiUoHfY9NE4iZeUWoAkV8zAm9Iu+dJQ3r2r3iqQ0iTxrn+sUS0yUKJ9ins= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nTLwtLSr; 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="nTLwtLSr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA87DC4CEEA; Mon, 23 Jun 2025 13:18:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750684710; bh=hN9j08jTKyI0k0FLerbeH7Vt/AcvgbW+WgHPUHw3t1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nTLwtLSr//iGys13mNYJaaW4MdPqT6EmuZU1CrVm9hkO/yc3bXfrN08pA54rWZ5ll U2r+ndOVk1L99e20vML2C8Owe52oIdJ0tS85hlClE9+X4ZybUugyIPHWe/T119KAvq tL47/eshoAz1hT0y+6qPjfikPcCPq+Z8vAUBByyc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Herbert Xu , Sasha Levin Subject: [PATCH 5.4 013/222] crypto: marvell/cesa - Avoid empty transfer descriptor Date: Mon, 23 Jun 2025 15:05:48 +0200 Message-ID: <20250623130612.296538732@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130611.896514667@linuxfoundation.org> References: <20250623130611.896514667@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.4-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/hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index a2b35fb0fb890..de1599bca3b75 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -630,7 +630,7 @@ 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