On Sat, 4 Jun 2016 11:42:43 +0100 Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> wrote: > On Sat, Jun 04, 2016 at 10:11:47AM +0800, kbuild test robot wrote: > > tree: git://git.cmpxchg.org/linux-mmotm.git master > > head: 2e0066ec9585a5074c8040d639c3c669eb4e905f > > commit: 60c8a7d9e20b888121b304895074928bf9b69029 [152/178] kexec: allow architectures to override boot mapping > > config: sh-sh7785lcr_32bit_defconfig (attached as .config) > > compiler: sh4-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205 > > 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 60c8a7d9e20b888121b304895074928bf9b69029 > > # save the attached .config to linux build tree > > make.cross ARCH=sh > > > > All error/warnings (new ones prefixed by >>): > > > > In file included from arch/sh/kernel/reboot.c:2:0: > > include/linux/kexec.h: In function 'boot_phys_to_virt': > > >> include/linux/kexec.h:356:9: error: implicit declaration of function 'phys_to_virt' [-Werror=implicit-function-declaration] > > return phys_to_virt(boot_phys_to_phys(entry)); > > ^ > > Is there a reason SH doesn't provide phys_to_virt()? Isn't that a basic > requirement for every architecture? It's there, in arch/sh/include/asm/io.h. kexec-allow-architectures-to-override-boot-mapping-fix.patch fixes this error. From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: kexec-allow-architectures-to-override-boot-mapping-fix kexec.h needs asm/io.h for phys_to_virt() Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Cc: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/kexec.h | 2 ++ 1 file changed, 2 insertions(+) diff -puN include/linux/kexec.h~kexec-allow-architectures-to-override-boot-mapping-fix include/linux/kexec.h --- a/include/linux/kexec.h~kexec-allow-architectures-to-override-boot-mapping-fix +++ a/include/linux/kexec.h @@ -14,6 +14,8 @@ #if !defined(__ASSEMBLY__) +#include <asm/io.h> + #include <uapi/linux/kexec.h> #ifdef CONFIG_KEXEC_CORE _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>