@@ -102,7 +102,6 @@ static __always_inline void allow_user_access(void __user *to, const void __user
u32 size, unsigned long dir)
{
BUILD_BUG_ON(!__builtin_constant_p(dir));
- BUILD_BUG_ON(dir & ~KUAP_READ_WRITE);
if (!(dir & KUAP_WRITE))
return;
@@ -5,14 +5,6 @@
#define KUAP_READ 1
#define KUAP_WRITE 2
#define KUAP_READ_WRITE (KUAP_READ | KUAP_WRITE)
-/*
- * For prevent_user_access() only.
- * Use the current saved situation instead of the to/from/size params.
- * Used on book3s/32
- */
-#define KUAP_CURRENT_READ 4
-#define KUAP_CURRENT_WRITE 8
-#define KUAP_CURRENT (KUAP_CURRENT_READ | KUAP_CURRENT_WRITE)
#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/book3s/64/kup.h>
@@ -139,17 +131,17 @@ static __always_inline void prevent_read_write_user(void __user *to, const void
static __always_inline void prevent_current_access_user(void)
{
- prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT);
+ prevent_user_access(NULL, NULL, ~0UL, KUAP_READ_WRITE);
}
static __always_inline void prevent_current_read_from_user(void)
{
- prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT_READ);
+ prevent_user_access(NULL, NULL, ~0UL, KUAP_READ);
}
static __always_inline void prevent_current_write_to_user(void)
{
- prevent_user_access(NULL, NULL, ~0UL, KUAP_CURRENT_WRITE);
+ prevent_user_access(NULL, NULL, ~0UL, KUAP_WRITE);
}
#endif /* !__ASSEMBLY__ */
book3s/32 was the only user of KUAP_CURRENT_XXX. After rework of book3s/32 KUAP, it is not used anymore. Remove it. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/include/asm/book3s/32/kup.h | 1 - arch/powerpc/include/asm/kup.h | 14 +++----------- 2 files changed, 3 insertions(+), 12 deletions(-)