diff options
Diffstat (limited to 'drivers/net/ipa/gsi_trans.c')
| -rw-r--r-- | drivers/net/ipa/gsi_trans.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/net/ipa/gsi_trans.c b/drivers/net/ipa/gsi_trans.c index 6c3ed5b17b80..8c795a6a8598 100644 --- a/drivers/net/ipa/gsi_trans.c +++ b/drivers/net/ipa/gsi_trans.c @@ -91,7 +91,7 @@ int gsi_trans_pool_init(struct gsi_trans_pool *pool, size_t size, u32 count, void *virt; #ifdef IPA_VALIDATE - if (!size || size % 8) + if (!size) return -EINVAL; if (count < max_alloc) return -EINVAL; @@ -141,7 +141,7 @@ int gsi_trans_pool_init_dma(struct device *dev, struct gsi_trans_pool *pool, void *virt; #ifdef IPA_VALIDATE - if (!size || size % 8) + if (!size) return -EINVAL; if (count < max_alloc) return -EINVAL; @@ -153,11 +153,10 @@ int gsi_trans_pool_init_dma(struct device *dev, struct gsi_trans_pool *pool, size = __roundup_pow_of_two(size); total_size = (count + max_alloc - 1) * size; - /* The allocator will give us a power-of-2 number of pages. But we - * can't guarantee that, so request it. That way we won't waste any - * memory that would be available beyond the required space. - * - * Note that gsi_trans_pool_exit_dma() assumes the total allocated + /* The allocator will give us a power-of-2 number of pages + * sufficient to satisfy our request. Round up our requested + * size to avoid any unused space in the allocation. This way + * gsi_trans_pool_exit_dma() can assume the total allocated * size is exactly (count * size). */ total_size = get_order(total_size) << PAGE_SHIFT; |