Commit 1b041601 authored by Kevin Hao's avatar Kevin Hao Committed by Jakub Kicinski
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net: octeontx2: Use napi_alloc_frag_align() to avoid the memory waste 



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: default avatarKevin Hao <haokexin@gmail.com>
Tested-by: default avatarSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 3f6e687d

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c

+1 −2
Original line number Diff line number Diff line
@@ -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))) {