diff options
| author | Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> | 2021-03-26 19:43:40 +0100 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-04-08 10:21:37 -0700 |
| commit | 12738ac4754ec92a6a45bf3677d8da780a1412b3 (patch) | |
| tree | 644c33990b558c1558b8f8b0f53689e409ce8152 | |
| parent | b2d0efc4be7ed320e33eaa9b6dd6f3f6011ffb8e (diff) | |
| download | misc-12738ac4754ec92a6a45bf3677d8da780a1412b3.tar.gz | |
i40e: Fix sparse errors in i40e_txrx.c
Remove error handling through pointers. Instead use plain int
to return value from i40e_run_xdp(...).
Previously:
- sparse errors were produced during compilation:
i40e_txrx.c:2338 i40e_run_xdp() error: (-2147483647) too low for ERR_PTR
i40e_txrx.c:2558 i40e_clean_rx_irq() error: 'skb' dereferencing possible ERR_PTR()
- sk_buff* was used to return value, but it has never had valid
pointer to sk_buff. Returned value was always int handled as
a pointer.
Fixes: 0c8493d90b6b ("i40e: add XDP support for pass and drop actions")
Fixes: 2e6893123830 ("i40e: split XDP_TX tail and XDP_REDIRECT map flushing")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 5747a99122fb4b..06b4271219b143 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2295,8 +2295,7 @@ int i40e_xmit_xdp_tx_ring(struct xdp_buff *xdp, struct i40e_ring *xdp_ring) * @rx_ring: Rx ring being processed * @xdp: XDP buffer containing the frame **/ -static struct sk_buff *i40e_run_xdp(struct i40e_ring *rx_ring, - struct xdp_buff *xdp) +static int i40e_run_xdp(struct i40e_ring *rx_ring, struct xdp_buff *xdp) { int err, result = I40E_XDP_PASS; struct i40e_ring *xdp_ring; @@ -2335,7 +2334,7 @@ static struct sk_buff *i40e_run_xdp(struct i40e_ring *rx_ring, } xdp_out: rcu_read_unlock(); - return ERR_PTR(-result); + return result; } /** @@ -2448,6 +2447,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget) unsigned int xdp_xmit = 0; bool failure = false; struct xdp_buff xdp; + int xdp_res = 0; #if (PAGE_SIZE < 8192) frame_sz = i40e_rx_frame_truesize(rx_ring, 0); @@ -2513,12 +2513,10 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget) /* At larger PAGE_SIZE, frame_sz depend on len size */ xdp.frame_sz = i40e_rx_frame_truesize(rx_ring, size); #endif - skb = i40e_run_xdp(rx_ring, &xdp); + xdp_res = i40e_run_xdp(rx_ring, &xdp); } - if (IS_ERR(skb)) { - unsigned int xdp_res = -PTR_ERR(skb); - + if (xdp_res) { if (xdp_res & (I40E_XDP_TX | I40E_XDP_REDIR)) { xdp_xmit |= xdp_res; i40e_rx_buffer_flip(rx_ring, rx_buffer, size); |