* [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
@ 2017-10-24 10:13 ` Kees Cook
0 siblings, 0 replies; 6+ messages in thread
From: Kees Cook @ 2017-10-24 10:13 UTC (permalink / raw)
To: Mark Rutland; +Cc: Lorenzo Pieralisi, linux-kernel, linux-arm-kernel
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. Also adds missing call to
destroy_timer_on_stack().
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
drivers/firmware/psci_checker.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
index 6523ce962865..f3f4f810e5df 100644
--- a/drivers/firmware/psci_checker.c
+++ b/drivers/firmware/psci_checker.c
@@ -220,7 +220,7 @@ static int hotplug_tests(void)
return err;
}
-static void dummy_callback(unsigned long ignored) {}
+static void dummy_callback(struct timer_list *unused) {}
static int suspend_cpu(int index, bool broadcast)
{
@@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
cpu, drv->state_count - 1);
- setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
+ timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
for (i = 0; i < NUM_SUSPEND_CYCLE; ++i) {
int index;
/*
@@ -340,6 +340,7 @@ static int suspend_test_thread(void *arg)
* later.
*/
del_timer(&wakeup_timer);
+ destroy_timer_on_stack(&wakeup_timer);
if (atomic_dec_return_relaxed(&nb_active_threads) == 0)
complete(&suspend_threads_done);
--
2.7.4
--
Kees Cook
Pixel Security
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
@ 2017-10-24 10:13 ` Kees Cook
0 siblings, 0 replies; 6+ messages in thread
From: Kees Cook @ 2017-10-24 10:13 UTC (permalink / raw)
To: linux-arm-kernel
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. Also adds missing call to
destroy_timer_on_stack().
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-arm-kernel at lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
drivers/firmware/psci_checker.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
index 6523ce962865..f3f4f810e5df 100644
--- a/drivers/firmware/psci_checker.c
+++ b/drivers/firmware/psci_checker.c
@@ -220,7 +220,7 @@ static int hotplug_tests(void)
return err;
}
-static void dummy_callback(unsigned long ignored) {}
+static void dummy_callback(struct timer_list *unused) {}
static int suspend_cpu(int index, bool broadcast)
{
@@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
cpu, drv->state_count - 1);
- setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
+ timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
for (i = 0; i < NUM_SUSPEND_CYCLE; ++i) {
int index;
/*
@@ -340,6 +340,7 @@ static int suspend_test_thread(void *arg)
* later.
*/
del_timer(&wakeup_timer);
+ destroy_timer_on_stack(&wakeup_timer);
if (atomic_dec_return_relaxed(&nb_active_threads) == 0)
complete(&suspend_threads_done);
--
2.7.4
--
Kees Cook
Pixel Security
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
2017-10-24 10:13 ` Kees Cook
@ 2017-10-24 13:52 ` Lorenzo Pieralisi
-1 siblings, 0 replies; 6+ messages in thread
From: Lorenzo Pieralisi @ 2017-10-24 13:52 UTC (permalink / raw)
To: Kees Cook; +Cc: Mark Rutland, linux-kernel, linux-arm-kernel
Hi Kees,
On Tue, Oct 24, 2017 at 03:13:31AM -0700, Kees Cook wrote:
> In preparation for unconditionally passing the struct timer_list pointer to
> all timer callbacks, switch to using the new timer_setup() and from_timer()
> to pass the timer pointer explicitly.
> Also adds missing call to destroy_timer_on_stack().
This patch should be split I think. I can send a patch to add
the missing destroy_timer_on_stack() call (which may get in
as a fix) and then we add a patch to update the timer setup
API.
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> drivers/firmware/psci_checker.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
> index 6523ce962865..f3f4f810e5df 100644
> --- a/drivers/firmware/psci_checker.c
> +++ b/drivers/firmware/psci_checker.c
> @@ -220,7 +220,7 @@ static int hotplug_tests(void)
> return err;
> }
>
> -static void dummy_callback(unsigned long ignored) {}
> +static void dummy_callback(struct timer_list *unused) {}
>
> static int suspend_cpu(int index, bool broadcast)
> {
> @@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
> pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
> cpu, drv->state_count - 1);
>
> - setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
> + timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
drivers/firmware/psci_checker.c: In function 'suspend_test_thread':
drivers/firmware/psci_checker.c:290:2: error: implicit declaration of
function 'timer_setup_on_stack' [-Werror=implicit-function-declaration]
timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
^~~~~~~~~~~~~~~~~~~~
On which tree this change is based on ?
I will send out the fix separately and CC you in.
Thanks,
Lorenzo
> for (i = 0; i < NUM_SUSPEND_CYCLE; ++i) {
> int index;
> /*
> @@ -340,6 +340,7 @@ static int suspend_test_thread(void *arg)
> * later.
> */
> del_timer(&wakeup_timer);
> + destroy_timer_on_stack(&wakeup_timer);
>
> if (atomic_dec_return_relaxed(&nb_active_threads) == 0)
> complete(&suspend_threads_done);
> --
> 2.7.4
>
>
> --
> Kees Cook
> Pixel Security
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
@ 2017-10-24 13:52 ` Lorenzo Pieralisi
0 siblings, 0 replies; 6+ messages in thread
From: Lorenzo Pieralisi @ 2017-10-24 13:52 UTC (permalink / raw)
To: linux-arm-kernel
Hi Kees,
On Tue, Oct 24, 2017 at 03:13:31AM -0700, Kees Cook wrote:
> In preparation for unconditionally passing the struct timer_list pointer to
> all timer callbacks, switch to using the new timer_setup() and from_timer()
> to pass the timer pointer explicitly.
> Also adds missing call to destroy_timer_on_stack().
This patch should be split I think. I can send a patch to add
the missing destroy_timer_on_stack() call (which may get in
as a fix) and then we add a patch to update the timer setup
API.
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: linux-arm-kernel at lists.infradead.org
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> drivers/firmware/psci_checker.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
> index 6523ce962865..f3f4f810e5df 100644
> --- a/drivers/firmware/psci_checker.c
> +++ b/drivers/firmware/psci_checker.c
> @@ -220,7 +220,7 @@ static int hotplug_tests(void)
> return err;
> }
>
> -static void dummy_callback(unsigned long ignored) {}
> +static void dummy_callback(struct timer_list *unused) {}
>
> static int suspend_cpu(int index, bool broadcast)
> {
> @@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
> pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
> cpu, drv->state_count - 1);
>
> - setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
> + timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
drivers/firmware/psci_checker.c: In function 'suspend_test_thread':
drivers/firmware/psci_checker.c:290:2: error: implicit declaration of
function 'timer_setup_on_stack' [-Werror=implicit-function-declaration]
timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
^~~~~~~~~~~~~~~~~~~~
On which tree this change is based on ?
I will send out the fix separately and CC you in.
Thanks,
Lorenzo
> for (i = 0; i < NUM_SUSPEND_CYCLE; ++i) {
> int index;
> /*
> @@ -340,6 +340,7 @@ static int suspend_test_thread(void *arg)
> * later.
> */
> del_timer(&wakeup_timer);
> + destroy_timer_on_stack(&wakeup_timer);
>
> if (atomic_dec_return_relaxed(&nb_active_threads) == 0)
> complete(&suspend_threads_done);
> --
> 2.7.4
>
>
> --
> Kees Cook
> Pixel Security
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
2017-10-24 13:52 ` Lorenzo Pieralisi
@ 2017-10-24 14:51 ` Kees Cook
-1 siblings, 0 replies; 6+ messages in thread
From: Kees Cook @ 2017-10-24 14:51 UTC (permalink / raw)
To: Lorenzo Pieralisi; +Cc: Mark Rutland, LKML, linux-arm-kernel
On Tue, Oct 24, 2017 at 6:52 AM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> Hi Kees,
>
> On Tue, Oct 24, 2017 at 03:13:31AM -0700, Kees Cook wrote:
>> In preparation for unconditionally passing the struct timer_list pointer to
>> all timer callbacks, switch to using the new timer_setup() and from_timer()
>> to pass the timer pointer explicitly.
>
>> Also adds missing call to destroy_timer_on_stack().
>
> This patch should be split I think. I can send a patch to add
> the missing destroy_timer_on_stack() call (which may get in
> as a fix) and then we add a patch to update the timer setup
> API.
Okay, sure, should be fine to split this.
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
>> Cc: linux-arm-kernel@lists.infradead.org
>> Signed-off-by: Kees Cook <keescook@chromium.org>
>> ---
>> drivers/firmware/psci_checker.c | 5 +++--
>> 1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
>> index 6523ce962865..f3f4f810e5df 100644
>> --- a/drivers/firmware/psci_checker.c
>> +++ b/drivers/firmware/psci_checker.c
>> @@ -220,7 +220,7 @@ static int hotplug_tests(void)
>> return err;
>> }
>>
>> -static void dummy_callback(unsigned long ignored) {}
>> +static void dummy_callback(struct timer_list *unused) {}
>>
>> static int suspend_cpu(int index, bool broadcast)
>> {
>> @@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
>> pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
>> cpu, drv->state_count - 1);
>>
>> - setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
>> + timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
>
> drivers/firmware/psci_checker.c: In function 'suspend_test_thread':
> drivers/firmware/psci_checker.c:290:2: error: implicit declaration of
> function 'timer_setup_on_stack' [-Werror=implicit-function-declaration]
> timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
> ^~~~~~~~~~~~~~~~~~~~
>
> On which tree this change is based on ?
Oh whoops, sorry, timer_setup() was in -rc3, but I see now that
timer_setup_on_stack() is only in -next. If you're okay with this
change, I can carry it in the timer tree for -next instead.
> I will send out the fix separately and CC you in.
Thanks!
-Kees
--
Kees Cook
Pixel Security
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] drivers/firmware: psci: Convert timers to use timer_setup()
@ 2017-10-24 14:51 ` Kees Cook
0 siblings, 0 replies; 6+ messages in thread
From: Kees Cook @ 2017-10-24 14:51 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Oct 24, 2017 at 6:52 AM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> Hi Kees,
>
> On Tue, Oct 24, 2017 at 03:13:31AM -0700, Kees Cook wrote:
>> In preparation for unconditionally passing the struct timer_list pointer to
>> all timer callbacks, switch to using the new timer_setup() and from_timer()
>> to pass the timer pointer explicitly.
>
>> Also adds missing call to destroy_timer_on_stack().
>
> This patch should be split I think. I can send a patch to add
> the missing destroy_timer_on_stack() call (which may get in
> as a fix) and then we add a patch to update the timer setup
> API.
Okay, sure, should be fine to split this.
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
>> Cc: linux-arm-kernel at lists.infradead.org
>> Signed-off-by: Kees Cook <keescook@chromium.org>
>> ---
>> drivers/firmware/psci_checker.c | 5 +++--
>> 1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
>> index 6523ce962865..f3f4f810e5df 100644
>> --- a/drivers/firmware/psci_checker.c
>> +++ b/drivers/firmware/psci_checker.c
>> @@ -220,7 +220,7 @@ static int hotplug_tests(void)
>> return err;
>> }
>>
>> -static void dummy_callback(unsigned long ignored) {}
>> +static void dummy_callback(struct timer_list *unused) {}
>>
>> static int suspend_cpu(int index, bool broadcast)
>> {
>> @@ -287,7 +287,7 @@ static int suspend_test_thread(void *arg)
>> pr_info("CPU %d entering suspend cycles, states 1 through %d\n",
>> cpu, drv->state_count - 1);
>>
>> - setup_timer_on_stack(&wakeup_timer, dummy_callback, 0);
>> + timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
>
> drivers/firmware/psci_checker.c: In function 'suspend_test_thread':
> drivers/firmware/psci_checker.c:290:2: error: implicit declaration of
> function 'timer_setup_on_stack' [-Werror=implicit-function-declaration]
> timer_setup_on_stack(&wakeup_timer, dummy_callback, 0);
> ^~~~~~~~~~~~~~~~~~~~
>
> On which tree this change is based on ?
Oh whoops, sorry, timer_setup() was in -rc3, but I see now that
timer_setup_on_stack() is only in -next. If you're okay with this
change, I can carry it in the timer tree for -next instead.
> I will send out the fix separately and CC you in.
Thanks!
-Kees
--
Kees Cook
Pixel Security
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-10-24 14:51 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2017-10-24 10:13 [PATCH] drivers/firmware: psci: Convert timers to use timer_setup() Kees Cook
2017-10-24 10:13 ` Kees Cook
2017-10-24 13:52 ` Lorenzo Pieralisi
2017-10-24 13:52 ` Lorenzo Pieralisi
2017-10-24 14:51 ` Kees Cook
2017-10-24 14:51 ` Kees Cook
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