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| author | Kiwoong Kim <kwmad.kim@samsung.com> | 2023-09-04 10:30:44 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-09-05 06:10:24 -0400 |
| commit | 2d3f59cf868b4a2dd678a96cd49bdd91411bd59f (patch) | |
| tree | 3043e926ab1c24ae74bacb9669eb07b34cc746f2 /drivers/ufs | |
| parent | 7df0b2605489bef3f4223ad66f1f9bb8d50d4cd2 (diff) | |
| download | linux-2d3f59cf868b4a2dd678a96cd49bdd91411bd59f.tar.gz | |
scsi: ufs: core: Move __ufshcd_send_uic_cmd() outside host_lock
__ufshcd_send_uic_cmd() is wrapped by uic_cmd_mutex and its related
contexts are accessed within the section wrapped by uic_cmd_mutex. Thus,
wrapping with host_lock is redundant.
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Link: https://lore.kernel.org/r/782ba5f26f0a96e58d85dff50751787d2d2a6b2b.1693790060.git.kwmad.kim@samsung.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chanwoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs')
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 93417518c04d15..f5e66d775b10bc 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2392,7 +2392,6 @@ __ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd, bool completion) { lockdep_assert_held(&hba->uic_cmd_mutex); - lockdep_assert_held(hba->host->host_lock); if (!ufshcd_ready_for_uic_cmd(hba)) { dev_err(hba->dev, @@ -2419,7 +2418,6 @@ __ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd, int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) { int ret; - unsigned long flags; if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) return 0; @@ -2428,9 +2426,7 @@ int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) mutex_lock(&hba->uic_cmd_mutex); ufshcd_add_delay_before_dme_cmd(hba); - spin_lock_irqsave(hba->host->host_lock, flags); ret = __ufshcd_send_uic_cmd(hba, uic_cmd, true); - spin_unlock_irqrestore(hba->host->host_lock, flags); if (!ret) ret = ufshcd_wait_for_uic_cmd(hba, uic_cmd); @@ -4133,8 +4129,8 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) wmb(); reenable_intr = true; } - ret = __ufshcd_send_uic_cmd(hba, cmd, false); spin_unlock_irqrestore(hba->host->host_lock, flags); + ret = __ufshcd_send_uic_cmd(hba, cmd, false); if (ret) { dev_err(hba->dev, "pwr ctrl cmd 0x%x with mode 0x%x uic error %d\n", |