[PATCH net 0/5] eth: bnxt: fix Rx buffer leaks under OOM

[Jakub Kicinski <kuba@kernel.org>]

Commit bd3beb5c8691 ("eth: bnxt: disable rx-copybreak by default")
changed the defaults putting users on buggy(ier) driver paths.

Fix various ways bnxt may leak buffers under OOM. The first patch
fixes the real bug that was hit in production. Second patch fixes
an issue I hit while testing the first one. The next 3 patches
fix other Rx buffer leaks pointed out by an LLM during review.

I have a few more fixes for issues surfaced during review
(misplaced DMA syncs and bad event handling). I'll post those
separately.

Jakub Kicinski (5):
  eth: bnxt: recycle agg buffers when Rx head buffer allocation fails
  eth: bnxt: resize Rx head buffers when rx-copybreak changes
  eth: bnxt: don't leak buffers when XDP agg buffer allocation fails
  eth: bnxt: free XDP frags when xdp_do_redirect() fails
  eth: bnxt: hand XDP frags over to the copybreak skb

 drivers/net/ethernet/broadcom/bnxt/bnxt.c     | 58 +++++++++++++------
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c |  1 +
 3 files changed, 41 insertions(+), 19 deletions(-)

-- 
2.56.0