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ORIGINATING; auth=pass smtp.auth=pza@pengutronix.de smtp.mailfrom=p.zabel@pengutronix.de ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=pengutronix.de; s=20260414; t=1792680108; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dSDh+9O/xetrecos0iU+4Fv5r+zKEOgXOLe1b/YsqR8=; b=OGJoRtSxhXh4eRWd0TXd2KXD+2Nfa8+6OLryGWyaa+mHtbH8J1CdwMOWiZm61xIN9a2jp1 CHDNd6F5RGcIzpBiD0J+Wa1FnR0zR7/9RrNJKghS1t7d+4/4oqC+In0ALeTom5dgUTSN8t s6GJbe2hgKR6zDjACgscYScsY/rAXHdSdwrcC0EiG8igHWD3/3RqBnaho1KVooBntlcAhw 7BxnAFY4iqQDGw6DkXulTmXs4noziXtpeFD3VGPUhgPBlaYZRXUtfAMNJYVoU9oZza2f8q igURKCIXhU26NBpkwdAYmpbFWEENW6lS1GK8zboYrtVZ3uZ7eZWmwGPo3WNkqQ== Message-ID: <5caae686a2ef9787cc12840beb6fa10b948a47c2.camel@pengutronix.de> Subject: Re: [PATCH v3] reset: core: Serialize concurrent deassert/reset of shared resets From: Philipp Zabel To: Shengjiu Wang Cc: shengjiu.wang@oss.nxp.com, krzk@kernel.org, hansg@kernel.org, linux-kernel@vger.kernel.org, broonie@kernel.org, alvin.sipraga@analog.com Date: Thu, 22 Oct 2026 16:41:48 +0200 In-Reply-To: References: <20261021030925.3543841-1-shengjiu.wang@oss.nxp.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2-0+deb13u1 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 On Do, 2026-10-22 at 21:31 +0800, Shengjiu Wang wrote: > >=20 [...] > > > In short, do you have an opinion how (far) this should be backported, > > > and does this warrant some Cc:stable tag? > >=20 > > You are right that this is only a partial fix for 0b52297f2288, and tha= t > > reset-gpio did not exist back then. Since the race is latent - it is on= ly > > reachable once a shared provider whose ops sleep exists (reset-gpio bei= ng > > the first) - and since the patch would not apply before 8c91302a29bc1 > > ("reset: protect struct reset_control with its own mutex", v7.1) anyway= , I > > would like to drop the Fixes: tag and Cc: stable for v4 and present thi= s as > > a correctness improvement to the shared-reset locking. Anyone hitting i= t on > > an older kernel can backport by hand. But let me know if this is accept= able. >=20 > Hi Philipp >=20 > Do you think is it ok to drop the fixes tag? I think so, yes. regards Philipp