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bnx2x: Prevent false warning for lack of FC NPIV

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Not all adapters have FC-NPIV configured. If bnx2fc is used with such an
adapter, driver would read irrelevant data from the the nvram and log
"FC-NPIV table with bad length..." In system logs.

Simply accept that reading '0' as the feature offset in nvram indicates
the feature isn't there and return.

Reported-by: Andrew Patterson <andrew.patterson@hpe.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2016-03-15 19:52:04 +02:00 committed by David S. Miller
parent 38c848c731
commit 1e6bb1a354
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View file

@ -14885,6 +14885,10 @@ static int bnx2x_get_fc_npiv(struct net_device *dev,
}
offset = SHMEM2_RD(bp, fc_npiv_nvram_tbl_addr[BP_PORT(bp)]);
if (!offset) {
DP(BNX2X_MSG_MCP, "No FC-NPIV in NVRAM\n");
goto out;
}
DP(BNX2X_MSG_MCP, "Offset of FC-NPIV in NVRAM: %08x\n", offset);
/* Read the table contents from nvram */