Hi Ville, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip v5.8-rc5 next-20200714] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Ville-Syrjala/drm-i915-fbc-Limit-cfb-to-the-first-256MiB-of-stolen-on-g4x/20200715-025227 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/bits.h:6, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from include/asm-generic/bug.h:19, from arch/x86/include/asm/bug.h:86, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/slab.h:15, from include/linux/io-mapping.h:10, from drivers/gpu/drm/i915/i915_drv.h:36, from drivers/gpu/drm/i915/display/intel_fbc.c:43: drivers/gpu/drm/i915/display/intel_fbc.c: In function 'intel_fbc_cfb_base_max': >> include/vdso/bits.h:7:26: warning: left shift count >= width of type [-Wshift-count-overflow] 7 | #define BIT(nr) (UL(1) << (nr)) | ^~ drivers/gpu/drm/i915/display/intel_fbc.c:432:10: note: in expansion of macro 'BIT' 432 | return BIT(32); | ^~~ vim +7 include/vdso/bits.h 3945ff37d2f48d Vincenzo Frascino 2020-03-20 6 3945ff37d2f48d Vincenzo Frascino 2020-03-20 @7 #define BIT(nr) (UL(1) << (nr)) 3945ff37d2f48d Vincenzo Frascino 2020-03-20 8 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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