From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792810847; b=XHwFJsq2/Z5xjRryK8HBPkjSiRfLO4lwU14aEGuxB5bkRivmfvwA4QLX6DoR+w5gWSzm oFpKiGOO0WxCEYnXszHsxGaPsqrn97HfjVxkbi6T2d7OEnNYslRgZTvw2Sjs+F3fIJb7z iI0iPFNMLen3wIP31IVdJ8wP9SS6qU9TAvtUvAyTUdQ3Svgq+xLY4lEFd2p5nDwrfoVo4 AX6lSiqen/9BgAdsIBvRBnLiMcDYx2MAqV4SZdSIvd/2T0Cn4+Ffc15cfNcO+yR6zFyTH Qw0nuvoGyT6doIW3ZCfJXDAEqwaN+g8fI8bVuywlIBqId4v56M/6YuUKeUkxpPcnekA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792810847; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=gbDYafjdxJDmY++nAzl5AEx/HaYmIAKE+6yhUgfk7YM=; b=FRYLwbMrDNk9puG1nmkhQtnW8Zkt1s0PNu/IHb1vBX6btmj/ehwnOT1ZGy2qioswqTTs qb1LSbL4wnRD6dH8sevn+k04T+iFp6ey+PI/7+jCsDQta5m9S6zn74K7Aj92/CQ+ZBGoN RbjlTXom66BU8cW+4Mfh9SvpSSEQ2CM+FyL8nOaGOQ5749iRMNrt9oTF1+/xhKMxj/kfc rwB9DaeMJakNLpxbbX6YS7jWzcfzohH+lDzwgFp5r131Hv6tjaldWLUedn/DXOGUtKHIZ Gj9SBDdxDOkzyIQ6/+lS8IDFedOLgJrmaT4UQox15aZQ92FQ1nqZ7txa7kGBM/8Hc0w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BtXpFtWD; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D990606A31D for ; Sat, 24 Oct 2026 03:00:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BtXpFtWD Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A3C61F01828; Sat, 24 Oct 2026 03:00:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792810846; bh=gbDYafjdxJDmY++nAzl5AEx/HaYmIAKE+6yhUgfk7YM=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=BtXpFtWDR0DIvJuI8xjgKGTCdRLFCWtKQRMoo2WzdUCA/4akMH+3OK7j5CH52nUyX Z+X3/6TgaIwtnKHK6x4Z6scq450PVqbSzPpSSyPULHTJjDOwMz1uCk8YDwTO8PehYE nJwCMUIDyHvjCXB5n0oNT5cuVr6Gt4VfdIV/z+UrHjm2qqbFJd8mEdLp2eqZnSlNGy 1/IgpbXA+ms0pWL8BlVBIaG6ub5M1HRo9g974oaXE0oqAH09vCdfcg3cfiXN/DLcLw 6qiqBcy/ivcC3VUINNg4fmyUlScV++4OWt60Ezii8631bNGAdUL9uCDsrcTk1M8cPv Q0lf3+Es4LuLw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC net-next v2 2/2] net/iucv: return EOF to a reader parked at the HiperSockets peer's FIN Reply-To: sashiko-reviews@lists.linux.dev To: "Bryam Vargas" Cc: linux-s390@vger.kernel.org, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261022-b4-disp-1d26b87a-v2-2-7ee1264d812a@proton.me> References: <20261022-b4-disp-1d26b87a-v2-0-7ee1264d812a@proton.me> <20261022-b4-disp-1d26b87a-v2-2-7ee1264d812a@proton.me> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sat, 24 Oct 2026 03:00:46 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > From: Bryam Vargas >=20 > After the peer's FIN only sk_state says the receive side is done. > Before the previous patch a reader parked at the FIN returned -ENOTCONN > (Hidayath Khan: 14151 of 14151 cycles between two z/VM guests); it now > returns 0 by the IUCV_DISCONN test, while poll() still reports no > EPOLLRDHUP for the peer's close. >=20 > Set RCV_SHUTDOWN where the FIN is applied, as TCP does: poll() reports > EPOLLRDHUP, and recvmsg() ends the stream by the test it already uses > for the peer's SHT. >=20 > Reported-by: Hidayath Khan > Closes: https://lore.kernel.org/netdev/82691101-92d7-4838-b16e-2e41a83f65= d0@linux.ibm.com/ > Signed-off-by: Bryam Vargas Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261022-b4-disp-1d= 26b87a-v2-0-7ee1264d812a@proton.me?part=3D2