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net: octeontx2: Use napi_alloc_frag_align() to avoid the memory waste

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The napi_alloc_frag_align() will guarantee that a correctly align
buffer address is returned. So use this function to simplify the buffer
alloc and avoid the unnecessary memory waste.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Tested-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kevin Hao 2021-02-04 18:56:37 +08:00 committed by Jakub Kicinski
parent 3f6e687dff
commit 1b041601c7
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
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@ -488,11 +488,10 @@ dma_addr_t __otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool)
dma_addr_t iova;
u8 *buf;
buf = napi_alloc_frag(pool->rbsize + OTX2_ALIGN);
buf = napi_alloc_frag_align(pool->rbsize, OTX2_ALIGN);
if (unlikely(!buf))
return -ENOMEM;
buf = PTR_ALIGN(buf, OTX2_ALIGN);
iova = dma_map_single_attrs(pfvf->dev, buf, pool->rbsize,
DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC);
if (unlikely(dma_mapping_error(pfvf->dev, iova))) {