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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-08-11 16:43:44 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-08-11 16:43:44 +0100 |
| commit | 6007502b5726d833d15d06c231f4a46f001da3ca (patch) | |
| tree | d0bdba93ef5472da5901ae21bf7b4b306d60df61 | |
| parent | d55a8f1a65c111c65296ac34f99b7869d01c489a (diff) | |
| download | xen-6007502b5726d833d15d06c231f4a46f001da3ca.tar.gz xen-6007502b5726d833d15d06c231f4a46f001da3ca.tar.bz2 xen-6007502b5726d833d15d06c231f4a46f001da3ca.zip | |
Define ABS() library function. Use it.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
xen-unstable changeset: 21345:2077d6ad6078
xen-unstable date: Tue May 11 11:19:23 2010 +0100
| -rw-r--r-- | xen/common/compat/memory.c | 2 | ||||
| -rw-r--r-- | xen/include/xen/lib.h | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/xen/common/compat/memory.c b/xen/common/compat/memory.c index 4acbf7447a..2402984f1e 100644 --- a/xen/common/compat/memory.c +++ b/xen/common/compat/memory.c @@ -116,7 +116,7 @@ int compat_memory_op(unsigned int cmd, XEN_GUEST_HANDLE(void) compat) start_extent = cmp.xchg.nr_exchanged; end_extent = (COMPAT_ARG_XLAT_SIZE - sizeof(*nat.xchg)) / - (((1U << __builtin_abs(order_delta)) + 1) * + (((1U << ABS(order_delta)) + 1) * sizeof(*space)); if ( end_extent == 0 ) { diff --git a/xen/include/xen/lib.h b/xen/include/xen/lib.h index bca0d65df0..d21e8dd5c0 100644 --- a/xen/include/xen/lib.h +++ b/xen/include/xen/lib.h @@ -40,6 +40,11 @@ do { \ #define ASSERT(p) ((void)0) #endif +#define ABS(_x) ({ \ + typeof(_x) __x = (_x); \ + (__x < 0) ? -__x : __x; \ +}) + #define SWAP(_a, _b) \ do { typeof(_a) _t = (_a); (_a) = (_b); (_b) = _t; } while ( 0 ) |