Hello Michael Chan,
The patch c0c050c58d84: "bnxt_en: New Broadcom ethernet driver." from
Oct 22, 2015, leads to the following static checker warning:
drivers/net/ethernet/broadcom/bnxt/bnxt.c:5337 bnxt_rx_flow_steer()
warn: impossible condition '(new_fltr->sw_id < 0) => (0-65535 < 0)'
drivers/net/ethernet/broadcom/bnxt/bnxt.c
5335 new_fltr->sw_id = bitmap_find_free_region(bp->ntp_fltr_bmap,
5336 BNXT_NTP_FLTR_MAX_FLTR, 0);
5337 if (new_fltr->sw_id < 0) {
^^^^^^^^^^^^^^^^^^^^
Unsigned never less than zero.
5338 spin_unlock_bh(&bp->ntp_fltr_lock);
5339 rc = -ENOMEM;
5340 goto err_free;
5341 }
regards,
dan carpenter
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