macro/align: Fix ALIGN_UP and ALIGN_DOWN

Signed-off-by: wangmingrong1 <[email protected]>
apache · Jan 10, 2025 · 420f76e · 420f76e
1 parent e5e9032
commit 420f76e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/include/nuttx/nuttx.h b/include/nuttx/nuttx.h
@@ -48,15 +48,15 @@
 #endif
 
 #ifndef ALIGN_UP
-#  define ALIGN_UP(x,a)        (((x) + ((a) - 1)) & ~((a) - 1))
+#  define ALIGN_UP(x,a)        ((((x) + (a) - 1) / (a)) * (a))
 #endif
 
 #ifndef ALIGN_UP_MASK
 #  define ALIGN_UP_MASK(x,m)   (((x) + (m)) & ~(m))
 #endif
 
 #ifndef ALIGN_DOWN
-#  define ALIGN_DOWN(x,a)      ((x) & (~((a) - 1)))
+#  define ALIGN_DOWN(x,a)      (((x) / (a)) * (a))
 #endif
 
 #ifndef ALIGN_DOWN_MASK