linux-kernel - Re: [PATCH] drm: sti: sti_hqvdp: Fix compilation warning.

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Date:   Tue, 20 Jun 2017 19:54:48 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Arvind Yadav <arvind.yadav.cs@...il.com>
Cc:     kbuild-all@...org, benjamin.gaignard@...aro.org,
        vincent.abriou@...com, airlied@...ux.ie,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm: sti: sti_hqvdp: Fix compilation warning.

Hi Arvind,

[auto build test WARNING on drm/drm-next]
[also build test WARNING on v4.12-rc6 next-20170620]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arvind-Yadav/drm-sti-sti_hqvdp-Fix-compilation-warning/20170620-170709
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: arm-multi_v7_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All warnings (new ones prefixed by >>):

   In file included from include/drm/drm_gem_cma_helper.h:4:0,
                    from drivers/gpu/drm/sti/sti_hqvdp.c:14:
   drivers/gpu/drm/sti/sti_hqvdp.c: In function 'sti_hqvdp_start_xp70':
>> drivers/gpu/drm/sti/sti_hqvdp.c:929:13: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=]
      DRM_ERROR("Invalid fmw structure (%lu+%d+%d+%d+%d != %zu)\n",
                ^
   include/drm/drmP.h:187:36: note: in definition of macro 'DRM_ERROR'
     drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__)
                                       ^~~

vim +929 drivers/gpu/drm/sti/sti_hqvdp.c

   913			return;
   914		}
   915	
   916		/* Check firmware parts */
   917		if (!firmware) {
   918			DRM_ERROR("Firmware not available\n");
   919			return;
   920		}
   921	
   922		header = (struct fw_header *)firmware->data;
   923		if (firmware->size < sizeof(*header)) {
   924			DRM_ERROR("Invalid firmware size (%zu)\n", firmware->size);
   925			goto out;
   926		}
   927		if ((sizeof(*header) + header->rd_size + header->wr_size +
   928			header->pmem_size + header->dmem_size) != firmware->size) {
 > 929			DRM_ERROR("Invalid fmw structure (%lu+%d+%d+%d+%d != %zu)\n",
   930				  sizeof(*header), header->rd_size, header->wr_size,
   931				  header->pmem_size, header->dmem_size,
   932				  firmware->size);
   933			goto out;
   934		}
   935	
   936		data = (u8 *)firmware->data;
   937		data += sizeof(*header);

---
0-DAY kernel test infrastructure                Open Source Technology Center
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