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 4C5EB235C5E; Thu, 12 Dec 2024 16:45:09 +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=1734021909; cv=none; b=Ao7XYzzaxZ36zWCe+zHT5rrnon0KnKQ2+0ZIyXfJ9UxfNaLwpuQiNbH291dAyW+sgP1sxMymmaiKAqC6B0Tc/Qgu4KML/EGyhor6rYMTgPur/DWbPS+M43Cxlrj/ZO2spHdEXEjQAzt2Nh/nRjIdXr6xH3vQZ+Q4K2WeZbOC4hM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734021909; c=relaxed/simple; bh=J2lB091Y+m34Wd4VBLQeBtS/iNmST9Ye6lNrCfV+u28=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k9VLRQ7D8M6cyhOFVRHD0q3/UTM72gTieAPoL7ejFjQXMvY/ySfjbE4rkYzu3uZ2OYI15Li8qf7lv0Bg/XSFnV/JqCmViesIv1XtfGNAtQPPHj2QXufMdz3mrHzU4D0R2Xwa9gEUFTqKICHXzxzMNIdZ+lWzGilt/z/tLeOg+iM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ai5vFRLy; 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="Ai5vFRLy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66BAAC4CECE; Thu, 12 Dec 2024 16:45:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734021908; bh=J2lB091Y+m34Wd4VBLQeBtS/iNmST9Ye6lNrCfV+u28=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ai5vFRLyw2XrrWVk2Jz7DUPX8SD1GTc277OZi9IJ+FYf63QnN0iWQ6LA5zrdoINB5 fEVXwApdjjt+2tCTgZ0gfu1C/NkDcL8Au+Vzul+/ha3RzWqaMBqq/5dl2Jgyivq+oV 88S/25Hf13BvXam2c+SH7eDMBmkxq48I/9jLrbfU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yi Yang , Herbert Xu , Sasha Levin Subject: [PATCH 5.15 097/565] crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Date: Thu, 12 Dec 2024 15:54:52 +0100 Message-ID: <20241212144315.321000465@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144311.432886635@linuxfoundation.org> References: <20241212144311.432886635@linuxfoundation.org> User-Agent: quilt/0.67 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yi Yang [ Upstream commit 662f2f13e66d3883b9238b0b96b17886179e60e2 ] Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case. Fixes: 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET") Signed-off-by: Yi Yang Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- crypto/pcrypt.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c index 005a36cb21bc4..2d7f98709e97c 100644 --- a/crypto/pcrypt.c +++ b/crypto/pcrypt.c @@ -117,8 +117,10 @@ static int pcrypt_aead_encrypt(struct aead_request *req) err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu); if (!err) return -EINPROGRESS; - if (err == -EBUSY) - return -EAGAIN; + if (err == -EBUSY) { + /* try non-parallel mode */ + return crypto_aead_encrypt(creq); + } return err; } @@ -166,8 +168,10 @@ static int pcrypt_aead_decrypt(struct aead_request *req) err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu); if (!err) return -EINPROGRESS; - if (err == -EBUSY) - return -EAGAIN; + if (err == -EBUSY) { + /* try non-parallel mode */ + return crypto_aead_decrypt(creq); + } return err; } -- 2.43.0