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 706DD26E6F4; Wed, 25 Feb 2026 01:42:55 +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=1771983775; cv=none; b=VyOW2AMWRCuLPRqWZOogb6icEFKWKX+BgKhM5EFzjkDNLbN5D+hJD/2sErMDlyGcHrKzvT4WEWf1ZmxEQKxQkT3eu8cEyH7Pao0Kbq+RJrOs5dasu31OgMLzGa0RYNZSeo9caSOJH4fArXJ/1BovW0+nvZ+JpebSfk/5HM0YCJ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771983775; c=relaxed/simple; bh=B1oi9+tCvxcLQ81cWgvFak73rYRzzMn8+pB4rhkdd40=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=OrUb/Yd+abuXPQg+SOHAbI9cfWvXK7pl9OEUfBx8Rv0VZf/ks8Ps49i760uyRJdjlvnAouqGBPLy4T4jL1pK3vvgxuHXaihcd7S8ViQLR2NTjSbI3iA6aspAR2GcQhlfDFFtlUThx7JU0xJwcPADtstvrGje2zZVxFILSty2LiM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DVHGw7ac; 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="DVHGw7ac" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27811C19423; Wed, 25 Feb 2026 01:42:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771983775; bh=B1oi9+tCvxcLQ81cWgvFak73rYRzzMn8+pB4rhkdd40=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DVHGw7acBCpmC9Yps+yJqQDkgb9IMaRWa6j3PBCbIUK8xENgOXRhU5YS2VofZxt7W 5+cIzNSJKZeBXodRq5CDtqx+/rUjW6r92Npwy8yunB47Wt5XIY6hX2XAh8jq9vT37d B2oxLdkwk+n+vwMiU+mlGKn2nHwQ7STtPSuInzqM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Giovanni Cabiddu , Ahsan Atta , Herbert Xu , Sasha Levin Subject: [PATCH 6.18 065/641] crypto: qat - fix warning on adf_pfvf_pf_proto.c Date: Tue, 24 Feb 2026 17:16:31 -0800 Message-ID: <20260225012350.630535580@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260225012348.915798704@linuxfoundation.org> References: <20260225012348.915798704@linuxfoundation.org> User-Agent: quilt/0.69 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Giovanni Cabiddu [ Upstream commit 994689b8f91b02fdb5f64cba2412cde5ef3084b5 ] Building the QAT driver with -Wmaybe-uninitialized triggers warnings in qat_common/adf_pfvf_pf_proto.c. Specifically, the variables blk_type, blk_byte, and byte_max may be used uninitialized in handle_blkmsg_req(): make M=drivers/crypto/intel/qat W=1 C=2 "KCFLAGS=-Werror" \ KBUILD_CFLAGS_KERNEL=-Wmaybe-uninitialized \ CFLAGS_MODULE=-Wmaybe-uninitialized ... warning: ‘byte_max’ may be used uninitialized [-Wmaybe-uninitialized] warning: ‘blk_type’ may be used uninitialized [-Wmaybe-uninitialized] warning: ‘blk_byte’ may be used uninitialized [-Wmaybe-uninitialized] Although the caller of handle_blkmsg_req() always provides a req.type that is handled by the switch, the compiler cannot guarantee this. Add a default case to the switch statement to handle an invalid req.type. Fixes: 673184a2a58f ("crypto: qat - introduce support for PFVF block messages") Signed-off-by: Giovanni Cabiddu Reviewed-by: Ahsan Atta Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- .../crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c b/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c index b9b5e744a3f16..af8dbc7517cf8 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c +++ b/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c @@ -148,6 +148,16 @@ static struct pfvf_message handle_blkmsg_req(struct adf_accel_vf_info *vf_info, blk_byte = FIELD_GET(ADF_VF2PF_SMALL_BLOCK_BYTE_MASK, req.data); byte_max = ADF_VF2PF_SMALL_BLOCK_BYTE_MAX; break; + default: + dev_err(&GET_DEV(vf_info->accel_dev), + "Invalid BlockMsg type 0x%.4x received from VF%u\n", + req.type, vf_info->vf_nr); + resp.type = ADF_PF2VF_MSGTYPE_BLKMSG_RESP; + resp.data = FIELD_PREP(ADF_PF2VF_BLKMSG_RESP_TYPE_MASK, + ADF_PF2VF_BLKMSG_RESP_TYPE_ERROR) | + FIELD_PREP(ADF_PF2VF_BLKMSG_RESP_DATA_MASK, + ADF_PF2VF_UNSPECIFIED_ERROR); + return resp; } /* Is this a request for CRC or data? */ -- 2.51.0