On 03/04/17 14:53, Julien Grall wrote:
diff --git a/xen/include/xen/bitops.h b/xen/include/xen/bitops.h
index bd0883a..9261e06 100644
--- a/xen/include/xen/bitops.h
+++ b/xen/include/xen/bitops.h
@@ -5,11 +5,14 @@
/*
* Create a contiguous bitmask starting at bit position @l and ending at
* position @h. For example
- * GENMASK(30, 21) gives us the 32bit vector 0x01fe00000.
+ * GENMASK(30, 21) gives us the 32bit vector 0x7fe00000.
This is a new addition in this series and should really be a separate
patch with the appropriate maintainers CCed.
*/
#define GENMASK(h, l) \
(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
+#define GENMASK_ULL(h, l) \
+ (((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))
This should also be a separate patch with BITS_PER_LONG_LONG too.
BTW, please take a look at the discussion:
https://patchwork.kernel.org/patch/8824091/
Cheers,
--
Julien Grall
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