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drivers/gpu/drm/udl/udl_fb.c:206: error: 'struct fb_info' has no member named 'fbdefio'

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Hi Tobias,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   118253a593bd1c57de2d1193df1ccffe1abe745b
commit: c0f0c177b5a9aa6d3791aa497a64a20a297ebc6f drm/udl: make fbdev support really optional
date:   4 weeks ago
config: x86_64-randconfig-b0-08142022 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout c0f0c177b5a9aa6d3791aa497a64a20a297ebc6f
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/gpu/drm/udl/udl_fb.c: In function 'udl_fb_open':
>> drivers/gpu/drm/udl/udl_fb.c:206: error: 'struct fb_info' has no member named 'fbdefio'
>> drivers/gpu/drm/udl/udl_fb.c:211: error: invalid application of 'sizeof' to incomplete type 'struct fb_deferred_io' 
   drivers/gpu/drm/udl/udl_fb.c:214: error: dereferencing pointer to incomplete type
   drivers/gpu/drm/udl/udl_fb.c:215: error: dereferencing pointer to incomplete type
   drivers/gpu/drm/udl/udl_fb.c:218: error: 'struct fb_info' has no member named 'fbdefio'
   drivers/gpu/drm/udl/udl_fb.c: In function 'udl_fb_release':
   drivers/gpu/drm/udl/udl_fb.c:238: error: 'struct fb_info' has no member named 'fbdefio'
   drivers/gpu/drm/udl/udl_fb.c:240: error: 'struct fb_info' has no member named 'fbdefio'
   drivers/gpu/drm/udl/udl_fb.c:241: error: 'struct fb_info' has no member named 'fbdefio'

vim +206 drivers/gpu/drm/udl/udl_fb.c

5320918b Dave Airlie 2010-12-15  200  	/* If the USB device is gone, we don't accept new opens */
5320918b Dave Airlie 2010-12-15  201  	if (drm_device_is_unplugged(udl->ddev))
5320918b Dave Airlie 2010-12-15  202  		return -ENODEV;
5320918b Dave Airlie 2010-12-15  203  
5320918b Dave Airlie 2010-12-15  204  	ufbdev->fb_count++;
5320918b Dave Airlie 2010-12-15  205  
5320918b Dave Airlie 2010-12-15 @206  	if (fb_defio && (info->fbdefio == NULL)) {
5320918b Dave Airlie 2010-12-15  207  		/* enable defio at last moment if not disabled by client */
5320918b Dave Airlie 2010-12-15  208  
5320918b Dave Airlie 2010-12-15  209  		struct fb_deferred_io *fbdefio;
5320918b Dave Airlie 2010-12-15  210  
5320918b Dave Airlie 2010-12-15 @211  		fbdefio = kmalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
5320918b Dave Airlie 2010-12-15  212  
5320918b Dave Airlie 2010-12-15  213  		if (fbdefio) {
5320918b Dave Airlie 2010-12-15  214  			fbdefio->delay = DL_DEFIO_WRITE_DELAY;

:::::: The code at line 206 was first introduced by commit
:::::: 5320918b9a87865223fd6b228e530bf30bc64d9d drm/udl: initial UDL driver (v4)

:::::: TO: Dave Airlie <airlied@gmail.com>
:::::: CC: Dave Airlie <airlied@redhat.com>

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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drivers/gpu/drm/udl/udl_fb.c:206: error: 'struct fb_info' has no  member named 'fbdefio' kbuild test robot <fengguang.wu@intel.com> - 2016-08-14 16:00 +0200

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