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 440141EEF9 for ; Thu, 28 Aug 2025 22:12:16 +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=1756419137; cv=none; b=WFXBWuArU0s+q78dGwT51UWBA/vaX+cNFjqFjCXWEMOmFGPXSZrlY+wN0gtyokoJ7e7TrybQOMPVakWLO4kIluNWQ1II86PNKbkLM9+xbf/Ye/1YIbL4UVFwjS70geletF0epKyvWdivStp6/hs5vRv5lXE1yxXp3WYPyMubgYI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756419137; c=relaxed/simple; bh=WmL1d29O8AcDy47oe74uDZce4Y/iihIsCVl+G1jYo8c=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=GuQ39Ueyp0T6oOjOeJtewaSCpjCYbEvc0uMEmjP/Srb1Xnifk+KD0dAvwjA3iWEPPn52uY8l5hpyadBlWPrvDoYKXpemimCOma89QXiq/pHY9vcB/0qFTHKVeIpMshgKgSbwfq4sBaJumqK65tUWwSo4aQSPAzkPZPYsGewM1Y4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TMFMYgSt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TMFMYgSt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 658B1C4CEEB; Thu, 28 Aug 2025 22:12:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756419136; bh=WmL1d29O8AcDy47oe74uDZce4Y/iihIsCVl+G1jYo8c=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=TMFMYgStBPZaU4VMQE5X2nkj6DOcmAMGgd1gCtYGCSSFvIzhT3khY7cqQm5aB266z p37i6Mz+teuhygTV4oS9u3x0YCexEjg0+Zg6vy9cL5lrTm+QjO/LSPw6M6vUosw2GN rZ1gQTfjSx6TGVMsDbxX+6fcP2vGsxNnLmrmkE3zeV3uKl/MYkb0/cMydXhl59/WWf ssQiHlBxEt5lhJixnfs0F7tX7j7eiBUUcue+FGLf+AEctclw5k7tELcj7vnJMF658U KyVU8QvgfDUucG/FmLan1WGuTfCl1qHoGceA4nl4O3+7FBgAf+B2EacuhjTxudxRH+ aKxjdrAacnTKg== Message-ID: <5b7aabf0-0bed-43bb-9fc8-164f3638a7d1@kernel.org> Date: Thu, 28 Aug 2025 16:12:15 -0600 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next 5/8] net: use dst_dev_rcu() in sk_setup_caps() Content-Language: en-US To: Eric Dumazet , "David S . Miller" , Jakub Kicinski , Paolo Abeni , Neal Cardwell Cc: Simon Horman , Kuniyuki Iwashima , netdev@vger.kernel.org, eric.dumazet@gmail.com References: <20250828195823.3958522-1-edumazet@google.com> <20250828195823.3958522-6-edumazet@google.com> From: David Ahern In-Reply-To: <20250828195823.3958522-6-edumazet@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/28/25 1:58 PM, Eric Dumazet wrote: > Use RCU to protect accesses to dst->dev from sk_setup_caps() > and sk_dst_gso_max_size(). > > Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), > and ip_dst_mtu_maybe_forward(). > > ip4_dst_hoplimit() can use dst_dev_net_rcu(). > > Fixes: 4a6ce2b6f2ec ("net: introduce a new function dst_dev_put()") > Signed-off-by: Eric Dumazet > --- > include/net/ip.h | 6 ++++-- > include/net/ip6_route.h | 2 +- > include/net/route.h | 2 +- > net/core/sock.c | 16 ++++++++++------ > 4 files changed, 16 insertions(+), 10 deletions(-) > Reviewed-by: David Ahern