Re: [PATCH 1/2] bus: brcmstb_gisb: register the fault code hook

From: Florian Fainelli
Date: Fri Sep 19 2014 - 15:46:11 EST


On 09/19/2014 12:44 PM, Florian Fainelli wrote:
> Commit 44127b771d9c31 ("bus: add Broadcom GISB bus arbiter timeout/error
> handler") added everything that is required to register an ARM fault
> handler for imprecise external aborts, except that there is nothing
> calling this currently.
>
> We do not need to export that specific function and have to update
> arch/arm/mach-bcm/brcmstb.c to call it, simply, register the fault
> handler with an arch_initcall.
>
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
> drivers/bus/brcmstb_gisb.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c
> index f2cd6a2d40b4..daae4f77f34a 100644
> --- a/drivers/bus/brcmstb_gisb.c
> +++ b/drivers/bus/brcmstb_gisb.c
> @@ -48,6 +48,7 @@ struct brcmstb_gisb_arb_device {
> struct list_head next;
> u32 valid_mask;
> const char *master_names[sizeof(u32) * BITS_PER_BYTE];
> + u32 saved_timeout;

Meh, this change is unrelated, I will resubmit a v2 shortly, sorry for
the noise.

> };
>
> static LIST_HEAD(brcmstb_gisb_arb_device_list);
> @@ -160,11 +161,13 @@ static int brcmstb_bus_error_handler(unsigned long addr, unsigned int fsr,
> return ret;
> }
>
> -void __init brcmstb_hook_fault_code(void)
> +static int __init brcmstb_hook_fault_code(void)
> {
> hook_fault_code(22, brcmstb_bus_error_handler, SIGBUS, 0,
> "imprecise external abort");
> + return 0;
> }
> +arch_initcall(brcmstb_hook_fault_code)
>
> static irqreturn_t brcmstb_gisb_timeout_handler(int irq, void *dev_id)
> {
>

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