evie/android_kernel_oneplus_msm8998
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net: support __netdev_alloc_skb to always use GFP_DMA

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This make it possible to ensure that any clients which use
__netdev_alloc_skb always allocate memory from the DMA zone.

Change-Id: Ia2a32905ac8f3e1b26fd6bcee5a04b96bdf29bef
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>
This commit is contained in:
Prakash Gupta 2017-02-04 14:25:06 +05:30
parent b1c46e3dc3
commit 7825e1e929
1 changed files with 3 additions and 0 deletions
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3
net/core/skbuff.c
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@ -416,6 +416,9 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int len,
len += NET_SKB_PAD;
if (IS_ENABLED(CONFIG_FORCE_ALLOC_FROM_DMA_ZONE))
gfp_mask |= GFP_DMA;
if ((len > SKB_WITH_OVERHEAD(PAGE_SIZE)) ||
(gfp_mask & (__GFP_DIRECT_RECLAIM | GFP_DMA))) {
skb = __alloc_skb(len, gfp_mask, SKB_ALLOC_RX, NUMA_NO_NODE);