eal: Pointer alignment check improvements
Checks
Commit Message
Checking a const pointer for alignment would emit a warning about the
const qualifier being discarded.
No need to calculate the aligned pointer; just check the last bits of the
pointer.
Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
---
lib/eal/include/rte_common.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
@@ -403,10 +403,10 @@ static void __attribute__((destructor(RTE_PRIO(prio)), used)) func(void)
* @return
* True(1) where the pointer is correctly aligned, false(0) otherwise
*/
-static inline int
-rte_is_aligned(void *ptr, unsigned align)
+static __rte_always_inline __attribute__ ((const)) int
+rte_is_aligned(const void * const __rte_restrict ptr, unsigned int align)
{
- return RTE_PTR_ALIGN(ptr, align) == ptr;
+ return ((uintptr_t)ptr & (align - 1)) == 0;
}
/*********** Macros for compile type checks ********/