[PATCH] ARM: footbridge: Convert timers to use timer_setup()

Kees Cook
2017-10-25T10:21:24Z

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.

Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel at lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
arch/arm/mach-footbridge/dc21285.c | 26 ++++++++------------------
1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index 96a3d73ef4bf..8407e4a07c77 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -136,19 +136,14 @@ struct pci_ops dc21285_ops = {
static struct timer_list serr_timer;
static struct timer_list perr_timer;

-static void dc21285_enable_error(unsigned long __data)
+static void dc21285_enable_error(struct timer_list *timer)
{
- switch (__data) {
- case IRQ_PCI_SERR:
- del_timer(&serr_timer);
- break;
-
- case IRQ_PCI_PERR:
- del_timer(&perr_timer);
- break;
- }
+ del_timer(timer);

- enable_irq(__data);
+ if (timer == &serr_timer)
+ enable_irq(IRQ_PCI_SERR)
+ else if (timer == &perr_timer)
+ enable_irq(IRQ_PCI_PERR);
}

/*
@@ -323,13 +318,8 @@ void __init dc21285_preinit(void)
*CSR_PCICMD = (*CSR_PCICMD & 0xffff) | PCICMD_ERROR_BITS;
}

- init_timer(&serr_timer);
- init_timer(&perr_timer);
-
- serr_timer.data = IRQ_PCI_SERR;
- serr_timer.function = dc21285_enable_error;
- perr_timer.data = IRQ_PCI_PERR;
- perr_timer.function = dc21285_enable_error;
+ timer_setup(&serr_timer, dc21285_enable_error, 0);
+ timer_setup(&perr_timer, dc21285_enable_error, 0);

/*
* We don't care if these fail.
--
2.7.4

--
Kees Cook
Pixel Security