net: skb: Remove skb_data_area_size()
authorRicardo Martinez <ricardo.martinez@linux.intel.com>
Fri, 13 May 2022 17:34:00 +0000 (10:34 -0700)
committerJakub Kicinski <kuba@kernel.org>
Mon, 16 May 2022 20:45:36 +0000 (13:45 -0700)
commit89af2ce2d95c80f6da9388d9da2e35c84c2573b1
tree92677fa2ad43ab46a7d2cc2be52d69810889f0be
parent262d98b1193fec68c66f3d57772b72240fc4b9da
net: skb: Remove skb_data_area_size()

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>
include/linux/skbuff.h