android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

UPSTREAM: scsi: ufs: Use DECLARE_COMPLETION_ONSTACK() where appropriate

Browse Source 
From Documentation/scheduler/completion.rst: "When a completion is declared
as a local variable within a function, then the initialization should
always use DECLARE_COMPLETION_ONSTACK() explicitly, not just to make
lockdep happy, but also to make it clear that limited scope had been
considered and is intentional."

Link: https://lore.kernel.org/r/20210722033439.26550-6-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8a686f26eaa4b8a5c494b6b69e8a97815e3ffb82)
Bug: 204438323
Bug: 218587336
Change-Id: I1e76702adc3df2e75e7a05fd06310f66d198b149
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Bart Van Assche 2021-07-21 20:34:26 -07:00 committed by Todd Kjos
parent 18d48b7c6d
commit fb0fa7dc29
1 changed files with 3 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/scsi/ufs/ufshcd.c
View File

@ -2923,11 +2923,11 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
enum dev_cmd_type cmd_type, int timeout)
{
struct request_queue *q = hba->cmd_queue;
DECLARE_COMPLETION_ONSTACK(wait);
struct request *req;
struct ufshcd_lrb *lrbp;
int err;
int tag;
struct completion wait;
down_read(&hba->clk_scaling_lock);
@ -2942,7 +2942,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
req->timeout = msecs_to_jiffies(2 * timeout);
blk_mq_start_request(req);
init_completion(&wait);
lrbp = &hba->lrb[tag];
WARN_ON(lrbp->cmd);
err = ufshcd_compose_dev_cmd(hba, lrbp, cmd_type, tag);
@ -3939,14 +3938,13 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_get_attr);
*/
static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
{
struct completion uic_async_done;
DECLARE_COMPLETION_ONSTACK(uic_async_done);
unsigned long flags;
u8 status;
int ret;
bool reenable_intr = false;
mutex_lock(&hba->uic_cmd_mutex);
init_completion(&uic_async_done);
ufshcd_add_delay_before_dme_cmd(hba);
spin_lock_irqsave(hba->host->host_lock, flags);
@ -6627,11 +6625,11 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
enum query_opcode desc_op)
{
struct request_queue *q = hba->cmd_queue;
DECLARE_COMPLETION_ONSTACK(wait);
struct request *req;
struct ufshcd_lrb *lrbp;
int err = 0;
int tag;
struct completion wait;
u8 upiu_flags;
down_read(&hba->clk_scaling_lock);
@ -6644,7 +6642,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
tag = req->tag;
WARN_ON_ONCE(!ufshcd_valid_tag(hba, tag));
init_completion(&wait);
lrbp = &hba->lrb[tag];
WARN_ON(lrbp->cmd);
lrbp->cmd = NULL;