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net: skb: Remove skb_data_area_size()

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skb_data_area_size() is not needed. As Jakub pointed out [1]:
For Rx, drivers can use the size passed during skb allocation or
use skb_tailroom().
For Tx, drivers should use skb_headlen().

[1] https://lore.kernel.org/netdev/CAHNKnsTmH-rGgWi3jtyC=ktM1DW2W1VJkYoTMJV2Z_Bt498bsg@mail.gmail.com/

Signed-off-by: Ricardo Martinez <ricardo.martinez@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ricardo Martinez 2022-05-13 10:34:00 -07:00 committed by Jakub Kicinski
parent 262d98b119
commit 89af2ce2d9
1 changed files with 0 additions and 5 deletions
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5
include/linux/skbuff.h
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@ -1765,11 +1765,6 @@ static inline void skb_set_end_offset(struct sk_buff *skb, unsigned int offset)
}
#endif
static inline unsigned int skb_data_area_size(struct sk_buff *skb)
{
return skb_end_pointer(skb) - skb->data;
}
struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
struct ubuf_info *uarg);