powerpc/sparse: Constify the address pointer in __get_user_nocheck()

In __get_user_nocheck, we create an intermediate pointer for the
user address we're about to fetch. We currently don't tag this
pointer as const. Make it const, as we are simply dereferencing
it, and it's scope is limited to the __get_user_nocheck macro.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 71d81cbe3781f1039098861fdf86d74cda65bad8..44ded4193001700bd07c2962b3ebbbff07aa1610 100644 (file)
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -261,7 +261,7 @@ do {                                                                \
 ({                                                             \
        long __gu_err;                                          \
        unsigned long __gu_val;                                 \
-       __typeof__(*(ptr)) __user *__gu_addr = (ptr);   \
+       const __typeof__(*(ptr)) __user *__gu_addr = (ptr);     \
        __chk_user_ptr(ptr);                                    \
        if (!is_kernel_addr((unsigned long)__gu_addr))          \
                might_fault();                                  \