linux-kernel - [PATCH AUTOSEL 5.15 02/14] mmc: core: Respect quirk_max

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250126150430.958708-2-sashal@kernel.org>
Date: Sun, 26 Jan 2025 10:04:18 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Shawn Lin <shawn.lin@...k-chips.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Sasha Levin <sashal@...nel.org>,
	avri.altman@....com,
	adrian.hunter@...el.com,
	ricardo@...liere.net,
	linux-mmc@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 02/14] mmc: core: Respect quirk_max_rate for non-UHS SDIO card

From: Shawn Lin <shawn.lin@...k-chips.com>

[ Upstream commit a2a44f8da29352f76c99c6904ee652911b8dc7dd ]

The card-quirk was added to limit the clock-rate for a card with UHS-mode
support, although let's respect the quirk for non-UHS mode too, to make the
behaviour consistent.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>
Message-ID: <1732268242-72799-1-git-send-email-shawn.lin@...k-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mmc/core/sdio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index eda2dbd965392..a0cac8c87ef2f 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -443,6 +443,8 @@ static unsigned mmc_sdio_get_max_clock(struct mmc_card *card)
 	if (card->type == MMC_TYPE_SD_COMBO)
 		max_dtr = min(max_dtr, mmc_sd_get_max_clock(card));
 
+	max_dtr = min_not_zero(max_dtr, card->quirk_max_rate);
+
 	return max_dtr;
 }
 
-- 
2.39.5