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(139.red-79-144-198.dynamicip.rima-tde.net. [79.144.198.139]) by smtp.gmail.com with ESMTPSA id q13-20020adffecd000000b0033334410d01sm157126wrs.36.2023.12.01.01.10.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Dec 2023 01:10:37 -0800 (PST) From: Jorge Ramirez-Ortiz To: jorge@foundries.io, ulf.hansson@linaro.org, CLoehle@hyperstone.com, adrian.hunter@intel.com, jinpu.wang@ionos.com, hare@suse.de, beanhuo@micron.com, asuk4.q@gmail.com, yangyingliang@huawei.com, yibin.ding@unisoc.com, victor.shih@genesyslogic.com.tw, linus.walleij@linaro.org Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] mmc: rpmb: fixes pause retune on all RPMB partitions. Date: Fri, 1 Dec 2023 10:10:34 +0100 Message-Id: <20231201091034.936441-1-jorge@foundries.io> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When RPMB was converted to a character device, it added support for multiple RPMB partitions (Commit 97548575bef3 ("mmc: block: Convert RPMB to a character device"). One of the changes in this commit was transforming the variable target_part defined in __mmc_blk_ioctl_cmd into a bitmask. This inadvertedly regressed the validation check done in mmc_blk_part_switch_pre() and mmc_blk_part_switch_post(). This commit fixes that regression. Fixes: 97548575bef3 ("mmc: block: Convert RPMB to a character device") Signed-off-by: Jorge Ramirez-Ortiz --- drivers/mmc/core/block.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 152dfe593c43..8d29687635c4 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -851,9 +851,10 @@ static const struct block_device_operations mmc_bdops = =3D { static int mmc_blk_part_switch_pre(struct mmc_card *card, unsigned int part_type) { + const unsigned int mask =3D EXT_CSD_PART_CONFIG_ACC_RPMB; int ret =3D 0; - if (part_type =3D=3D EXT_CSD_PART_CONFIG_ACC_RPMB) { + if (part_type & mask =3D=3D mask) { if (card->ext_csd.cmdq_en) { ret =3D mmc_cmdq_disable(card); if (ret) @@ -868,9 +869,10 @@ static int mmc_blk_part_switch_pre(struct mmc_card *ca= rd, static int mmc_blk_part_switch_post(struct mmc_card *card, unsigned int part_type) { + const unsigned int mask =3D EXT_CSD_PART_CONFIG_ACC_RPMB; int ret =3D 0; - if (part_type =3D=3D EXT_CSD_PART_CONFIG_ACC_RPMB) { + if (part_type & mask =3D=3D mask) { mmc_retune_unpause(card->host); if (card->reenable_cmdq && !card->ext_csd.cmdq_en) ret =3D mmc_cmdq_enable(card); -- 2.34.1