Re: [PATCH -next] drm: simpledrm: print resource info using '%pr'

From: Thomas Zimmermann
Date: Thu May 13 2021 - 09:04:01 EST


Hi

Am 13.05.21 um 01:34 schrieb Randy Dunlap:
struct resource start and end fields are not always long long,
so using %llx to print them can cause build warnings (below).
Fix these by using the special "%pr" for printing struct resource info.

../drivers/gpu/drm/tiny/simpledrm.c: In function ‘simpledrm_device_init_mm’:
../include/drm/drm_print.h:412:32: warning: format ‘%llx’
expects argument of type ‘long long unsigned int’, but argument 3 has type ‘resource_size_t {aka unsigned int}’ [-Wformat=]
../drivers/gpu/drm/tiny/simpledrm.c:533:54: note: format string is defined here
drm_err(dev, "could not acquire memory range [0x%llx:0x%llx]: error
%d\n",
~~~^
%x
../include/drm/drm_print.h:412:32: warning: format ‘%llx’
expects argument of type ‘long long unsigned int’, but argument 4 has type ‘resource_size_t {aka unsigned int}’ [-Wformat=]
../drivers/gpu/drm/tiny/simpledrm.c:533:61: note: format string is defined here
drm_err(dev, "could not acquire memory range [0x%llx:0x%llx]: error
%d\n",
~~~^
%x

Fixes: 4aae79f77e3a ("drm/simpledrm: Acquire memory aperture for framebuffer")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx

Queued up for drm-misc-next. Thanks a lot.

Best regards
Thomas

---
drivers/gpu/drm/tiny/simpledrm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-next-20210512.orig/drivers/gpu/drm/tiny/simpledrm.c
+++ linux-next-20210512/drivers/gpu/drm/tiny/simpledrm.c
@@ -530,8 +530,8 @@ static int simpledrm_device_init_mm(stru
ret = devm_aperture_acquire_from_firmware(dev, mem->start, resource_size(mem));
if (ret) {
- drm_err(dev, "could not acquire memory range [0x%llx:0x%llx]: error %d\n",
- mem->start, mem->end, ret);
+ drm_err(dev, "could not acquire memory range %pr: error %d\n",
+ mem, ret);
return ret;
}


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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