Guenter reports a build failure on cell_defconfig and maple_defconfg:

In file included from arch/powerpc/include/asm/kup.h:10:0, from arch/powerpc/include/asm/uaccess.h:12, from arch/powerpc/lib/checksum_wrappers.c:24: arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: data definition has no type or storage class [-Werror] DECLARE_STATIC_KEY_FALSE(uaccess_flush_key); ^~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: type defaults to ‘int’ in declaration of ‘DECLARE_STATIC_KEY_FALSE’ [-Werror=implicit-int] arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: parameter names (without types) in function declaration [-Werror] arch/powerpc/include/asm/book3s/64/kup-radix.h: In function ‘prevent_user_access’: arch/powerpc/include/asm/book3s/64/kup-radix.h:18:6: error: implicit declaration of function ‘static_branch_unlikely’ [-Werror=implicit-function-declaration] if (static_branch_unlikely(&uaccess_flush_key)) ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/book3s/64/kup-radix.h:18:30: error: ‘uaccess_flush_key’ undeclared (first use in this function); did you mean ‘do_uaccess_flush’? if (static_branch_unlikely(&uaccess_flush_key)) ^~~~~~~~~~~~~~~~~ do_uaccess_flush arch/powerpc/include/asm/book3s/64/kup-radix.h:18:30: note: each undeclared identifier is reported only once for each function it appears in cc1: all warnings being treated as errors

This is because I failed to include linux/jump_label.h in kup-radix.h. Include it.

Reported-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Daniel Axtens dja@axtens.net --- arch/powerpc/include/asm/book3s/64/kup-radix.h | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/include/asm/book3s/64/kup-radix.h b/arch/powerpc/include/asm/book3s/64/kup-radix.h index aa54ac2e5659..cce8e7497d72 100644 --- a/arch/powerpc/include/asm/book3s/64/kup-radix.h +++ b/arch/powerpc/include/asm/book3s/64/kup-radix.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H #define _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H +#include <linux/jump_label.h>

DECLARE_STATIC_KEY_FALSE(uaccess_flush_key);