On Wed, Aug 24, 2016 at 02:22:29AM +0800, kbuild test robot wrote: > tree: git://anongit.freedesktop.org/drm-intel for-linux-next > head: ac96b5566926af83463ddcf4655856033c092f26 > commit: ac96b5566926af83463ddcf4655856033c092f26 [1/1] io-mapping.h: s/PAGE_KERNEL_IO/PAGE_KERNEL/ > config: microblaze-nommu_defconfig (attached as .config) > compiler: microblaze-linux-gcc (GCC) 4.9.0 > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout ac96b5566926af83463ddcf4655856033c092f26 > # save the attached .config to linux build tree > make.cross ARCH=microblaze > > All errors (new ones prefixed by >>): > > In file included from drivers/gpio/gpiolib-of.c:19:0: > include/linux/io-mapping.h: In function 'io_mapping_init_wc': > >> include/linux/io-mapping.h:126:2: error: implicit declaration of function 'pgprot_writecombine' [-Werror=implicit-function-declaration] > iomap->prot = pgprot_writecombine(PAGE_KERNEL); > ^ > >> include/linux/io-mapping.h:126:14: error: incompatible types when assigning to type 'pgprot_t' from type 'int' > iomap->prot = pgprot_writecombine(PAGE_KERNEL); > ^ > cc1: some warnings being treated as errors > > vim +/pgprot_writecombine +126 include/linux/io-mapping.h Grrr. diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h index a87dd7fffc0a..babd4c53a5aa 100644 --- a/include/linux/io-mapping.h +++ b/include/linux/io-mapping.h @@ -114,6 +114,10 @@ io_mapping_unmap(void __iomem *vaddr) #include <linux/uaccess.h> #include <asm/pgtable.h> +#ifdef pgprot_noncached_wc +#define pgprot_writecombine pgprot_noncached_wc +#endif + /* Create the io_mapping object*/ static inline struct io_mapping * io_mapping_init_wc(struct io_mapping *iomap, is what I have in mind. Looks like a divide between x86 and ppc (and their followers). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
