Re: [PATCH v3 1/2] drm: Fix fault format

[Arnd Bergmann]

On Thu, Oct 3, 2024, at 15:29, Vincenzo Frascino wrote:
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c 
> b/drivers/gpu/drm/i915/gt/intel_gt.c
> index a6c69a706fd7..352ef5e1c615 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -308,7 +308,7 @@ static void gen6_check_faults(struct intel_gt *gt)
>  		fault = GEN6_RING_FAULT_REG_READ(engine);
>  		if (fault & RING_FAULT_VALID) {
>  			gt_dbg(gt, "Unexpected fault\n"
> -			       "\tAddr: 0x%08lx\n"
> +			       "\tAddr: 0x%08x\n"
>  			       "\tAddress space: %s\n"
>  			       "\tSource ID: %d\n"
>  			       "\tType: %d\n",

Isn't the type of PAGE_MASK still architecture dependent?
I think you need a cast to either 'int' or 'long' here to
make the corresponding format string work across all
architectures. With the current version of your patch 2/2,
it looks like it has to be %x for architectures with 
64-bit phys_addr_t, but %lx for the other ones.

Changing the 'u32 fault' variable to 'unsigned long'
would also work here.

      Arnd