From: George Guo <[email protected]> kho_block.c calls virt_to_phys() and phys_to_virt(). On LoongArch with CONFIG_KFENCE=y, these macros (in arch/loongarch/include/asm/io.h) expand to offset_in_page() and page_address(), both declared in <linux/mm.h>.
Since kho_block.c does not include <linux/mm.h>, the translation unit fails to build with CONFIG_KFENCE=y: asm/io.h: error: implicit declaration of function 'offset_in_page' asm/io.h: error: implicit declaration of function 'page_address' Add the missing include to fix these build errors. This is the same root cause as the luo_session.c build fix previously acked by Mike Rapoport [1]; the virt_to_phys()/phys_to_virt() calls have since been refactored from luo_session.c into kho_block.c, so the fix moves with it. [1] https://lore.kernel.org/r/[email protected]/ Co-developed-by: Kexin Liu <[email protected]> Signed-off-by: Kexin Liu <[email protected]> Signed-off-by: George Guo <[email protected]> --- kernel/liveupdate/kho_block.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/liveupdate/kho_block.c b/kernel/liveupdate/kho_block.c index 0d2a342ef422..0d56891b2f4c 100644 --- a/kernel/liveupdate/kho_block.c +++ b/kernel/liveupdate/kho_block.c @@ -25,6 +25,7 @@ #include <linux/kho/abi/block.h> #include <linux/kho_block.h> #include <linux/slab.h> +#include <linux/mm.h> /* * Safeguard limit for the number of serialization blocks. This is used to -- 2.53.0
