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ivshmem: use common is_power_of_2()

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The common version correctly checks for 0 value case.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
This commit is contained in:
Marc-André Lureau 2015-06-18 16:10:33 +02:00
parent 6f8a16d55d
commit e309366337
1 changed files with 1 additions and 5 deletions
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6
hw/misc/ivshmem.c
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@ -117,10 +117,6 @@ static inline uint32_t ivshmem_has_feature(IVShmemState *ivs,
return (ivs->features & (1 << feature));
}
static inline bool is_power_of_two(uint64_t x) {
return (x & (x - 1)) == 0;
}
/* accessing registers - based on rtl8139 */
static void ivshmem_update_irq(IVShmemState *s)
{
@ -632,7 +628,7 @@ static uint64_t ivshmem_get_size(IVShmemState * s, Error **errp) {
}
/* BARs must be a power of 2 */
if (!is_power_of_two(value)) {
if (!is_power_of_2(value)) {
error_setg(errp, "size must be power of 2");
return 0;
}