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 5FDDE1FE45A for ; Wed, 25 Feb 2026 02:00:18 +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=1771984818; cv=none; b=rJJUkdlTMUaEHNeXYcWas4YtFCn/F94Yyg32GGyGwT0ubgsfu3JmZuPXQXnKaMY3vXmwSlwlsDvP4SCXzveJvC4I5BDhYNRYF1Yx8ZXLk5y5Gzoas28FHhDGWr20NYK8h5FOaCOB9D5xDvITMN0qRgUi2CXGpCwkx4142ZG/ttc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771984818; c=relaxed/simple; bh=rUX/K6KAxKJu81nmW960q3ODpIstJEA6r4ipi446aY0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qCCCEnjsTvjkz0uIYzdpi0i5ZturPlZghqRfgESg6QCg/ZEqgpnU8eVA8mfMi+4BGxdjzTwuRbZ419Iqtlw4ADBqdogvvBBcyy+XuRhrCG3phOYRE/npDRBiGJnuhfAN6Kreimea/4wbnccExP6k+jy1xrcsW/vIXtmYOHJivuc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XHHh7Dpd; 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="XHHh7Dpd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3731C2BC86; Wed, 25 Feb 2026 02:00:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771984818; bh=rUX/K6KAxKJu81nmW960q3ODpIstJEA6r4ipi446aY0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XHHh7DpdkAc9XKkpE3xC8sclRqhfw+RcJwf67DHBGoU1tW9Bh6ZSydwT0NnRDpZf9 XjGj7m1Kb0e05kZuVKT/BGWSOZwglT2cpEOKreiQtiLr7lISXUWRYGnUlC/90IqLni //LrYv0DIxl0TtfcHyyFKE4NfPzv2C4zMeLJ1A2iS+vAl9+/Zz6hhINyxnwaTqspj0 SEQ5AmPILgj/xS9leRaScK9tYy9vU8GZtNrgmN5MWPKse6XhXa+ufjLsRNGH0s4U81 ieQcI58NQDwLwGozRNHSclOZtLWhfTSvhREkyLenYFbgZGeQ2qEuPyPpW/CW+KZ7j8 bV+o93h4hdeJw== From: Sasha Levin To: stable@vger.kernel.org Cc: =?UTF-8?q?Th=C3=A9o=20Lebrun?= , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH 6.6.y 2/3] usb: cdns3: call cdns_power_is_lost() only once in cdns_resume() Date: Tue, 24 Feb 2026 21:00:14 -0500 Message-ID: <20260225020015.3779380-2-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260225020015.3779380-1-sashal@kernel.org> References: <2026022421-folk-jaywalker-5996@gregkh> <20260225020015.3779380-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Théo Lebrun [ Upstream commit 17c6526b333cfd89a4c888a6f7c876c8c326e5ae ] cdns_power_is_lost() does a register read. Call it only once rather than twice. Signed-off-by: Théo Lebrun Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-4-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman Stable-dep-of: 87e4b043b98a ("usb: cdns3: fix role switching during resume") Signed-off-by: Sasha Levin --- drivers/usb/cdns3/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index 98980a23e1c22..1243a5cea91b5 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -524,11 +524,12 @@ EXPORT_SYMBOL_GPL(cdns_suspend); int cdns_resume(struct cdns *cdns) { + bool power_lost = cdns_power_is_lost(cdns); enum usb_role real_role; bool role_changed = false; int ret = 0; - if (cdns_power_is_lost(cdns)) { + if (power_lost) { if (!cdns->role_sw) { real_role = cdns_hw_role_state_machine(cdns); if (real_role != cdns->role) { @@ -551,7 +552,7 @@ int cdns_resume(struct cdns *cdns) } if (cdns->roles[cdns->role]->resume) - cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns)); + cdns->roles[cdns->role]->resume(cdns, power_lost); return 0; } -- 2.51.0