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| author | Michael Bestas <mkbestas@lineageos.org> | 2021-02-07 15:45:02 +0200 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2021-02-07 15:45:02 +0200 |
| commit | 32ed4c6cace37c492b7deacdf3fa223618b1ad2e (patch) | |
| tree | 0d247f7c30832c3137d9a868f95df59b19bf7712 /net/core | |
| parent | 4d2544c30eab39bfe0eed6027fe4059f58ee91ad (diff) | |
| parent | 0566f6529a7b8d15d8ff50797331717b346f9aa4 (diff) | |
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-02000-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
0566f6529a7b8 Merge 4.4.255 into android-4.4-p
Conflicts:
drivers/scsi/ufs/ufshcd.c
drivers/usb/gadget/function/f_accessory.c
drivers/usb/gadget/function/f_uac2.c
net/core/skbuff.c
Change-Id: I327c7f3793e872609f33f2a8e70eba7b580d70f3
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/skbuff.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 7b8bd8562879..727dccc887fe 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -429,7 +429,11 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int len, if (IS_ENABLED(CONFIG_FORCE_ALLOC_FROM_DMA_ZONE)) gfp_mask |= GFP_DMA; - if ((len > SKB_WITH_OVERHEAD(PAGE_SIZE)) || + /* If requested length is either too small or too big, + * we use kmalloc() for skb->head allocation. + */ + if (len <= SKB_WITH_OVERHEAD(1024) || + 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); if (!skb) @@ -506,13 +510,17 @@ EXPORT_SYMBOL(__netdev_alloc_skb); struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int len, gfp_t gfp_mask) { - struct page_frag_cache *nc = this_cpu_ptr(&napi_alloc_cache); + struct page_frag_cache *nc; struct sk_buff *skb; void *data; len += NET_SKB_PAD + NET_IP_ALIGN; - if ((len > SKB_WITH_OVERHEAD(PAGE_SIZE)) || + /* If requested length is either too small or too big, + * we use kmalloc() for skb->head allocation. + */ + if (len <= SKB_WITH_OVERHEAD(1024) || + 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); if (!skb) @@ -520,6 +528,7 @@ struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int len, goto skb_success; } + nc = this_cpu_ptr(&napi_alloc_cache); len += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); len = SKB_DATA_ALIGN(len); @@ -1542,6 +1551,12 @@ int pskb_trim_rcsum_slow(struct sk_buff *skb, unsigned int len) skb->csum = csum_block_sub(skb->csum, skb_checksum(skb, len, delta, 0), len); + } else if (skb->ip_summed == CHECKSUM_PARTIAL) { + int hdlen = (len > skb_headlen(skb)) ? skb_headlen(skb) : len; + int offset = skb_checksum_start_offset(skb) + skb->csum_offset; + + if (offset + sizeof(__sum16) > hdlen) + return -EINVAL; } return __pskb_trim(skb, len); } |