Hi Andrew, On 16/12/15 03:01, Andrew Pinski wrote: > On Tue, Dec 9, 2015 at 17:26:56, Catalin Marinas > <catalin.mari...@arm.com> wrote: >> >> Currently the BUG_ON() checks do not give enough information about the PTEs >> being set. This patch changes BUG_ON to WARN_ONCE and dumps the values of >> the old and new PTEs. > > > This change broke building the mantis driver: > > In file included from ./arch/arm64/include/asm/io.h:30:0, > from drivers/media/pci/mantis/mantis_i2c.c:21: > ./arch/arm64/include/asm/pgtable.h: In function ‘set_pte_at’: > ./arch/arm64/include/asm/pgtable.h:281:3: error: implicit declaration > of function ‘BUILD_BUG_ON_INVALID’ > [-Werror=implicit-function-declaration] > VM_WARN_ONCE(!pte_young(pte), > ^
This is due to a missing include in include/linux/mmdebug.h, which Julien Grall saw with CONFIG_XEN & !CONFIG_DEBUG_VM. There was some discussion at [0], and a patch at [1]. The quick-and-dirty workaround is to toggle CONFIG_DEBUG_VM. It should be fixed in the next rc. Thanks, James [0] https://lkml.org/lkml/2015/12/14/489 [1] http://www.spinics.net/lists/linux-mm/msg98868.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
