tree: git://anongit.freedesktop.org/drm-intel topic/drm-misc head: 37035e7411fc90d57e4aca83ef654f50c3a0f626 commit: e6f15b763ab2bc47000ec302123e2fb3bf2ad7d4 [2/11] drm/vgem: Enable dmabuf interface for export config: m68k-allyesconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 4.9.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/ma... -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout e6f15b763ab2bc47000ec302123e2fb3bf2ad7d4 # save the attached .config to linux build tree make.cross ARCH=m68k
All warnings (new ones prefixed by >>):
In file included from arch/m68k/include/asm/thread_info.h:5:0, from include/linux/thread_info.h:54, from include/asm-generic/preempt.h:4, from arch/m68k/include/generated/asm/preempt.h:1, from include/linux/preempt.h:59, from include/linux/spinlock.h:50, from include/linux/seqlock.h:35, from include/linux/time.h:5, from include/linux/stat.h:18, from include/linux/module.h:10, from drivers/gpu/drm/vgem/vgem_drv.c:33: drivers/gpu/drm/vgem/vgem_drv.c: In function 'vgem_prime_vmap': drivers/gpu/drm/vgem/vgem_drv.c:238:53: error: 'PAGE_KERNEL_IO' undeclared (first use in this function) addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO)); ^ arch/m68k/include/asm/page.h:37:36: note: in definition of macro '__pgprot' #define __pgprot(x) ((pgprot_t) { (x) } ) ^
arch/m68k/include/asm/pgtable_mm.h:164:15: note: in expansion of macro 'pgprot_val'
? (__pgprot(pgprot_val(prot) | __SUN3_PAGE_NOCACHE)) \ ^
include/asm-generic/pgtable.h:306:29: note: in expansion of macro 'pgprot_noncached'
#define pgprot_writecombine pgprot_noncached ^
drivers/gpu/drm/vgem/vgem_drv.c:238:33: note: in expansion of macro 'pgprot_writecombine'
addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO)); ^ drivers/gpu/drm/vgem/vgem_drv.c:238:53: note: each undeclared identifier is reported only once for each function it appears in addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO)); ^ arch/m68k/include/asm/page.h:37:36: note: in definition of macro '__pgprot' #define __pgprot(x) ((pgprot_t) { (x) } ) ^
arch/m68k/include/asm/pgtable_mm.h:164:15: note: in expansion of macro 'pgprot_val'
? (__pgprot(pgprot_val(prot) | __SUN3_PAGE_NOCACHE)) \ ^
include/asm-generic/pgtable.h:306:29: note: in expansion of macro 'pgprot_noncached'
#define pgprot_writecombine pgprot_noncached ^
drivers/gpu/drm/vgem/vgem_drv.c:238:33: note: in expansion of macro 'pgprot_writecombine'
addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO)); ^
vim +/pgprot_writecombine +238 drivers/gpu/drm/vgem/vgem_drv.c
222 st = drm_prime_pages_to_sg(pages, obj->size >> PAGE_SHIFT); 223 drm_gem_put_pages(obj, pages, false, false); 224 225 return st; 226 } 227 228 static void *vgem_prime_vmap(struct drm_gem_object *obj) 229 { 230 long n_pages = obj->size >> PAGE_SHIFT; 231 struct page **pages; 232 void *addr; 233 234 pages = drm_gem_get_pages(obj); 235 if (IS_ERR(pages)) 236 return NULL; 237
238 addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO));
239 drm_gem_put_pages(obj, pages, false, false); 240 241 return addr; 242 } 243 244 static void vgem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) 245 { 246 vunmap(vaddr);
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