* [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-18 13:20 ` Arnd Bergmann
0 siblings, 0 replies; 12+ messages in thread
From: Arnd Bergmann @ 2021-10-18 13:20 UTC (permalink / raw)
To: Stanley Chu, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Peter Wang, Bart Van Assche, linux-scsi,
linux-mediatek, linux-kernel, linux-arm-kernel
From: Arnd Bergmann <arnd@arndb.de>
sched_clock() is not meant to be used in portable driver code,
and assuming a particular clock frequency is not how this is
meant to be used. It also causes a build failure because of
a missing header inclusion:
drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
timeout = sched_clock() + retry_ms * 1000000UL;
A better interface to use here ktime_get_mono_fast_ns(), which
works mostly like ktime_get() but is safe to use inside of a
suspend callback.
Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend to disable auto-hibern8")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d1696db70ce8..a47241ed0a57 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct ufs_hba *hba,
u32 val, sm;
bool wait_idle;
- timeout = sched_clock() + retry_ms * 1000000UL;
-
+ /* cannot use plain ktime_get() in suspend */
+ timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
/* wait a specific time after check base */
udelay(10);
wait_idle = false;
do {
- time_checked = sched_clock();
+ time_checked = ktime_get_mono_fast_ns();
ufs_mtk_dbg_sel(hba);
val = ufshcd_readl(hba, REG_UFS_PROBE);
--
2.29.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-18 13:20 ` Arnd Bergmann
0 siblings, 0 replies; 12+ messages in thread
From: Arnd Bergmann @ 2021-10-18 13:20 UTC (permalink / raw)
To: Stanley Chu, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Peter Wang, Bart Van Assche, linux-scsi,
linux-mediatek, linux-kernel, linux-arm-kernel
From: Arnd Bergmann <arnd@arndb.de>
sched_clock() is not meant to be used in portable driver code,
and assuming a particular clock frequency is not how this is
meant to be used. It also causes a build failure because of
a missing header inclusion:
drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
timeout = sched_clock() + retry_ms * 1000000UL;
A better interface to use here ktime_get_mono_fast_ns(), which
works mostly like ktime_get() but is safe to use inside of a
suspend callback.
Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend to disable auto-hibern8")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d1696db70ce8..a47241ed0a57 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct ufs_hba *hba,
u32 val, sm;
bool wait_idle;
- timeout = sched_clock() + retry_ms * 1000000UL;
-
+ /* cannot use plain ktime_get() in suspend */
+ timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
/* wait a specific time after check base */
udelay(10);
wait_idle = false;
do {
- time_checked = sched_clock();
+ time_checked = ktime_get_mono_fast_ns();
ufs_mtk_dbg_sel(hba);
val = ufshcd_readl(hba, REG_UFS_PROBE);
--
2.29.2
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
2021-10-18 13:20 ` Arnd Bergmann
(?)
@ 2021-10-20 11:04 ` Stanley Chu
-1 siblings, 0 replies; 12+ messages in thread
From: Stanley Chu @ 2021-10-20 11:04 UTC (permalink / raw)
To: Arnd Bergmann, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Peter Wang, Bart Van Assche, linux-scsi,
linux-mediatek, linux-kernel, linux-arm-kernel
Hi Arnd,
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this fix.
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-20 11:04 ` Stanley Chu
0 siblings, 0 replies; 12+ messages in thread
From: Stanley Chu @ 2021-10-20 11:04 UTC (permalink / raw)
To: Arnd Bergmann, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Peter Wang, Bart Van Assche, linux-scsi,
linux-mediatek, linux-kernel, linux-arm-kernel
Hi Arnd,
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this fix.
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-20 11:04 ` Stanley Chu
0 siblings, 0 replies; 12+ messages in thread
From: Stanley Chu @ 2021-10-20 11:04 UTC (permalink / raw)
To: Arnd Bergmann, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Peter Wang, Bart Van Assche, linux-scsi,
linux-mediatek, linux-kernel, linux-arm-kernel
Hi Arnd,
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this fix.
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
2021-10-18 13:20 ` Arnd Bergmann
(?)
@ 2021-10-21 3:18 ` Peter Wang
-1 siblings, 0 replies; 12+ messages in thread
From: Peter Wang @ 2021-10-21 3:18 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Bart Van Assche, linux-scsi, linux-mediatek,
linux-kernel, linux-arm-kernel
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this patch.
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-21 3:18 ` Peter Wang
0 siblings, 0 replies; 12+ messages in thread
From: Peter Wang @ 2021-10-21 3:18 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Bart Van Assche, linux-scsi, linux-mediatek,
linux-kernel, linux-arm-kernel
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this patch.
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-21 3:18 ` Peter Wang
0 siblings, 0 replies; 12+ messages in thread
From: Peter Wang @ 2021-10-21 3:18 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley, Martin K. Petersen
Cc: Arnd Bergmann, Alim Akhtar, Avri Altman, Matthias Brugger,
Bean Huo, Bart Van Assche, linux-scsi, linux-mediatek,
linux-kernel, linux-arm-kernel
On Mon, 2021-10-18 at 15:20 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration
> of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
> timeout = sched_clock() + retry_ms * 1000000UL;
>
> A better interface to use here ktime_get_mono_fast_ns(), which
> works mostly like ktime_get() but is safe to use inside of a
> suspend callback.
>
> Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend
> to disable auto-hibern8")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-
> mediatek.c
> index d1696db70ce8..a47241ed0a57 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct
> ufs_hba *hba,
> u32 val, sm;
> bool wait_idle;
>
> - timeout = sched_clock() + retry_ms * 1000000UL;
> -
> + /* cannot use plain ktime_get() in suspend */
> + timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
Thanks for this patch.
>
> /* wait a specific time after check base */
> udelay(10);
> wait_idle = false;
>
> do {
> - time_checked = sched_clock();
> + time_checked = ktime_get_mono_fast_ns();
> ufs_mtk_dbg_sel(hba);
> val = ufshcd_readl(hba, REG_UFS_PROBE);
>
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
2021-10-18 13:20 ` Arnd Bergmann
(?)
@ 2021-10-27 4:00 ` Martin K. Petersen
-1 siblings, 0 replies; 12+ messages in thread
From: Martin K. Petersen @ 2021-10-27 4:00 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley
Cc: Martin K . Petersen, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-scsi, Alim Akhtar, Avri Altman,
Arnd Bergmann, Matthias Brugger, Bart Van Assche, Peter Wang,
Bean Huo
On Mon, 18 Oct 2021 15:20:01 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> [...]
Applied to 5.16/scsi-queue, thanks!
[1/1] scsi: ufs: mediatek: avoid sched_clock() misuse
https://git.kernel.org/mkp/scsi/c/bb4a8dcb4e94
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-27 4:00 ` Martin K. Petersen
0 siblings, 0 replies; 12+ messages in thread
From: Martin K. Petersen @ 2021-10-27 4:00 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley
Cc: Martin K . Petersen, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-scsi, Alim Akhtar, Avri Altman,
Arnd Bergmann, Matthias Brugger, Bart Van Assche, Peter Wang,
Bean Huo
On Mon, 18 Oct 2021 15:20:01 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> [...]
Applied to 5.16/scsi-queue, thanks!
[1/1] scsi: ufs: mediatek: avoid sched_clock() misuse
https://git.kernel.org/mkp/scsi/c/bb4a8dcb4e94
--
Martin K. Petersen Oracle Linux Engineering
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH] scsi: ufs: mediatek: avoid sched_clock() misuse
@ 2021-10-27 4:00 ` Martin K. Petersen
0 siblings, 0 replies; 12+ messages in thread
From: Martin K. Petersen @ 2021-10-27 4:00 UTC (permalink / raw)
To: Arnd Bergmann, Stanley Chu, James E.J. Bottomley
Cc: Martin K . Petersen, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-scsi, Alim Akhtar, Avri Altman,
Arnd Bergmann, Matthias Brugger, Bart Van Assche, Peter Wang,
Bean Huo
On Mon, 18 Oct 2021 15:20:01 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> sched_clock() is not meant to be used in portable driver code,
> and assuming a particular clock frequency is not how this is
> meant to be used. It also causes a build failure because of
> a missing header inclusion:
>
> [...]
Applied to 5.16/scsi-queue, thanks!
[1/1] scsi: ufs: mediatek: avoid sched_clock() misuse
https://git.kernel.org/mkp/scsi/c/bb4a8dcb4e94
--
Martin K. Petersen Oracle Linux Engineering
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