[igt-dev] [PATCH i-g-t] lib/drmtest.h: make ALIGN work with uint64_t values

[Marcin Bernatowicz]

Let alignment be the same type as aligned value.
Based on kernel code.

This should fix code like:

uint32_t a = 4096;
uint64_t v = 32768ULL * 32768 * 4;

v = ALIGN(v, a);

Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz at linux.intel.com>
---
 lib/drmtest.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/drmtest.h b/lib/drmtest.h
index 97ab6e759..524d81b7a 100644
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -87,7 +87,8 @@ void __set_forced_driver(const char *name);
  *
  * Macro to align a value @v to a specified unit @a.
  */
-#define ALIGN(v, a) (((v) + (a)-1) & ~((a)-1))
+#define ALIGN(v, a) ALIGN_MASK(v, (typeof(v))(a) - 1)
+#define ALIGN_MASK(v, mask) (((v) + (mask)) & ~(mask))
 
 /**
  * ALIGN_DOWN:
-- 
2.42.0