igb: Drop BUILD_BUG_ON check from igb_build_rx_buffer

On s390 the igb driver was throwing a build error due to the fact that a frame
built using build_skb would be larger than 2K.  Since this is not likely to
change at any point in the future we are better off just dropping the check
since we already had a check in igb_set_rx_buffer_len that will just disable
the usage of build_skb anyway.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index ed79a1c53b59b0c101f1e5a2c2363f67f1fe0b04..4d53a17959fad7fb00dc43d1317ad10a29fae326 100644 (file)
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6227,13 +6227,6 @@ static struct sk_buff *igb_build_rx_buffer(struct igb_ring *rx_ring,
        /* If we spanned a buffer we have a huge mess so test for it */
        BUG_ON(unlikely(!igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP)));
 
-       /* Guarantee this function can be used by verifying buffer sizes */
-       BUILD_BUG_ON(SKB_WITH_OVERHEAD(IGB_RX_BUFSZ) < (NET_SKB_PAD +
-                                                       NET_IP_ALIGN +
-                                                       IGB_TS_HDR_LEN +
-                                                       ETH_FRAME_LEN +
-                                                       ETH_FCS_LEN));
-
        rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];
        page = rx_buffer->page;
        prefetchw(page);