From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 A4142217704 for ; Thu, 9 Jul 2026 12:48:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783601285; cv=none; b=WYYL+wtkFEcyjHaX+bwVS7ot2SJfg1tgnfAKqw6N4zhx3HhE6Of8PrSQubzFTz4Sg6GufqZWuQRrPRwIMglMeCWmiEMEpl15MIKbsKCCMSKey2dXF/7MpwnOziH+w5stLg3Knvabkr/FzP/WxFEgm+Bziu5V7mAhm4bcvp/16ho= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783601285; c=relaxed/simple; bh=bkF4GfGRO2193VruODqTB0dP9e83z2vY/L1X+ODPWls=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=PzLVI4ovE38G2/eRn+0Yl4scAIRbSlI3pMVQT+IDzlej40FR3dmlm/uRYEtnroPzFUP30tOzchuUJ7HlG0qWL9HGHQTAU+SgOSZ70KijpNigC8iX1zFpQpHdolKAdfnI+DCDyXOpal4rgn0HdA2xzdSfMfyWhs61kYilHQiwES4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dNpaFvnJ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dNpaFvnJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B43751F00A3A; Thu, 9 Jul 2026 12:48:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783601284; bh=Q6Mlt39Ut7sHqvigekvF3xBOxxRM0OiOteYZGDXWL9U=; h=From:To:Cc:Subject:Date; b=dNpaFvnJMBqT6xZavGOqvFGI+rtyz0gvUyTeqUpxZLVrteBo8qEpo+wntW0iycqcL 5m20eFAZW5lpy73qqK2fPxRqVuuvBLE1TBwqINoADe8W2S35svlLHFJtucofgxzwUu cKDQT7eC9sU85Y5xFr+sr/2LQOqNj/PlCXIcLIn+mMnIUUDqlwC5L209RfScFziIjb +6c1v0BlmTONTE9uaRrXLydxOJ1x/uVClatSmRSZNLaCHjpzwm6+zuvmZqnrMxz4iu X+/rbW40c9cdPZ0y9FrknpYNsTx2IXsOb+GcM3N0Yabcv40qgTCSsOLX9MGH/IYfys Ev/Nl/kyM3vxw== From: Antoine Tenart To: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com Cc: Antoine Tenart , netdev@vger.kernel.org, Sashiko Subject: [PATCH net] geneve: fix hint header definition wrt endianness Date: Thu, 9 Jul 2026 14:48:00 +0200 Message-ID: <20260709124801.140632-1-atenart@kernel.org> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Bitfields are packed differently depending on the endianness, take it into account in the GRO hint header definition. Fixes: e0a12cbf262b ("geneve: add GRO hint output path") Cc: Paolo Abeni Reported-by: Sashiko Closes: https://sashiko.dev/#/patchset/20260529144713.780938-1-atenart%40kernel.org Signed-off-by: Antoine Tenart --- drivers/net/geneve.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 9afff7bcaa0b..b25b0c4de4d1 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -43,8 +43,17 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN"); #define GENEVE_OPT_GRO_HINT_LEN 1 struct geneve_opt_gro_hint { +#if defined(__LITTLE_ENDIAN_BITFIELD) u8 inner_proto_id:2, - nested_is_v6:1; + nested_is_v6:1, + rsvd:5; +#elif defined(__BIG_ENDIAN_BITFIELD) + u8 rsvd:5, + nested_is_v6:1, + inner_proto_id:2; +#else +#error "Please fix " +#endif u8 nested_nh_offset; u8 nested_tp_offset; u8 nested_hdr_len; -- 2.55.0