Re: [PATCH net v2 2/3] net: devmem: return EMSGSIZE on type mismatch
From: Jakub Kicinski <kuba@kernel.org>
Date: 2026-08-04 21:38:47
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On Tue, 4 Aug 2026 08:36:40 -0700 Mina Almasry wrote:
On Mon, Aug 3, 2026 at 12:54 PM Jakub Kicinski [off-list ref] wrote:quoted
On Mon, 3 Aug 2026 17:14:40 +0000 Mina Almasry wrote:quoted
When a devmem payload mixes with a standard page payload, return -EMSGSIZE instead of -EFAULT. This enables tcp_sendmsg to seamlessly fall back to creating a new segment instead of failing the socket send.Sure but AFAIU this was discovered during a ML discussion, so the change is an improvement for net-next rather than a fix. Do you have any reason to believe that real applications hit the error?No, I don't have a reason; I just thought it was a straightforward fix you might want to take in net. I can definitely punt this to net-next. I'm a bit unsure whether you want this series reposted as v3 without this patch, or if you're going to take the other 2 patches. I guess if I don't see the rest merged I'll repost. Thanks!
split and repost please