From: Al Viro <viro@zeniv.linux.org.uk>
To: Stanislav Fomichev <stfomichev@gmail.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
willemb@google.com, sagi@grimberg.me, asml.silence@gmail.com,
almasrymina@google.com, kaiyuanz@google.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] net: devmem: remove min_t(iter_iov_len) in sendmsg
Date: Sat, 17 May 2025 04:39:51 +0100 [thread overview]
Message-ID: <20250517033951.GY2023217@ZenIV> (raw)
In-Reply-To: <aCfxs5CiHYMJPOsy@mini-arch>
On Fri, May 16, 2025 at 07:17:23PM -0700, Stanislav Fomichev wrote:
> > Wait, in the same commit there's
> > + if (iov_iter_type(from) != ITER_IOVEC)
> > + return -EFAULT;
> >
> > shortly prior to the loop iter_iov_{addr,len}() are used. What am I missing now?
>
> Yeah, I want to remove that part as well:
>
> https://lore.kernel.org/netdev/20250516225441.527020-1-stfomichev@gmail.com/T/#u
>
> Otherwise, sendmsg() with a single IOV is not accepted, which makes not
> sense.
Wait a minute. What's there to prevent a call with two ranges far from each other?
next prev parent reply other threads:[~2025-05-17 3:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-17 0:04 [PATCH net-next] net: devmem: remove min_t(iter_iov_len) in sendmsg Stanislav Fomichev
2025-05-17 0:09 ` Al Viro
2025-05-17 1:24 ` Stanislav Fomichev
2025-05-17 2:06 ` Al Viro
2025-05-17 2:17 ` Stanislav Fomichev
2025-05-17 3:39 ` Al Viro [this message]
2025-05-17 3:53 ` Stanislav Fomichev
2025-05-17 4:05 ` Al Viro
2025-05-17 4:29 ` Stanislav Fomichev
2025-05-17 4:53 ` Mina Almasry
2025-05-20 15:10 ` Pavel Begunkov
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