[PATCH v3 6/7] mm: use BIT() for change_protection() flags

[Gregory Price]

From: "Gregory Price (Meta)" <gourry@xxxxxxxxxx>

The MM_CP_* flags are individual bits expressed as open-coded shifts.
Use BIT() consistently for the complete block.

No functional change intended.

Suggested-by: David Hildenbrand <david@xxxxxxxxxx>
Link: https://lore.kernel.org/r/9b5e1573-6fd8-48a5-a274-a6e7ff83d2fe@xxxxxxxxxx
Assisted-by: LLM
Signed-off-by: Gregory Price (Meta) <gourry@xxxxxxxxxx>
---
 include/linux/mm.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 225ba26c9d503..c2ffba42019c0 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3596,21 +3596,21 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen);
  * because something (e.g., COW, uffd-wp) blocks that from happening for all
  * PTEs automatically in a writable mapping.
  */
-#define  MM_CP_TRY_CHANGE_WRITABLE	   (1UL << 0)
+#define  MM_CP_TRY_CHANGE_WRITABLE	   BIT(0)
 /* Whether this protection change is for NUMA hints */
-#define  MM_CP_PROT_NUMA                   (1UL << 1)
+#define  MM_CP_PROT_NUMA                   BIT(1)
 /* Whether this change is for write protecting */
-#define  MM_CP_UFFD_WP                     (1UL << 2) /* do wp */
-#define  MM_CP_UFFD_WP_RESOLVE             (1UL << 3) /* Resolve wp */
+#define  MM_CP_UFFD_WP                     BIT(2) /* do wp */
+#define  MM_CP_UFFD_WP_RESOLVE             BIT(3) /* Resolve wp */
 #define  MM_CP_UFFD_WP_ALL                 (MM_CP_UFFD_WP | \
 					    MM_CP_UFFD_WP_RESOLVE)
 /* Whether this change is for uffd RWP */
-#define  MM_CP_UFFD_RWP                    (1UL << 4) /* do rwp */
-#define  MM_CP_UFFD_RWP_RESOLVE            (1UL << 5) /* resolve rwp */
+#define  MM_CP_UFFD_RWP                    BIT(4) /* do rwp */
+#define  MM_CP_UFFD_RWP_RESOLVE            BIT(5) /* resolve rwp */
 #define  MM_CP_UFFD_RWP_ALL                (MM_CP_UFFD_RWP | \
 					    MM_CP_UFFD_RWP_RESOLVE)
 /* Whether a MM_CP_PROT_NUMA change is for promotion only */
-#define  MM_CP_PROT_NUMA_PROMO_ONLY        (1UL << 6)
+#define  MM_CP_PROT_NUMA_PROMO_ONLY        BIT(6)
 
 bool can_change_pte_writable(struct vm_area_struct *vma, unsigned long addr,
 			     pte_t pte);
-- 
2.53.0-Meta