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ahci: Convert timers to use timer_setup()

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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. Adds a pointer back to link
structure.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
Link: https://lkml.kernel.org/r/20171016215658.GA101965@beast
This commit is contained in:
Kees Cook 2017-10-16 14:56:58 -07:00 committed by Thomas Gleixner
parent 3a29ddb1c5
commit 1843594c56
2 changed files with 7 additions and 5 deletions
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1
drivers/ata/ahci.h
View file

@ -303,6 +303,7 @@ struct ahci_em_priv {
unsigned long saved_activity;
unsigned long activity;
unsigned long led_state;
struct ata_link *link;
};
struct ahci_port_priv {

11
drivers/ata/libahci.c
View file

@ -968,12 +968,12 @@ static void ahci_sw_activity(struct ata_link *link)
mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10));
}
static void ahci_sw_activity_blink(unsigned long arg)
static void ahci_sw_activity_blink(struct timer_list *t)
{
struct ata_link *link = (struct ata_link *)arg;
struct ahci_em_priv *emp = from_timer(emp, t, timer);
struct ata_link *link = emp->link;
struct ata_port *ap = link->ap;
struct ahci_port_priv *pp = ap->private_data;
struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
unsigned long led_message = emp->led_state;
u32 activity_led_state;
unsigned long flags;
@ -1020,7 +1020,8 @@ static void ahci_init_sw_activity(struct ata_link *link)
/* init activity stats, setup timer */
emp->saved_activity = emp->activity = 0;
setup_timer(&emp->timer, ahci_sw_activity_blink, (unsigned long)link);
emp->link = link;
timer_setup(&emp->timer, ahci_sw_activity_blink, 0);
/* check our blink policy and set flag for link if it's enabled */
if (emp->blink_policy)