net/ena: fix parsing of large LLQ header device argument

[ upstream commit 9b312ad ]

The code incorrectly checked the return value of comparison when parsing
the argument key name. The return value of strcmp should be compared
to 0 to identify a match.

Fixes: 8a7a73f ("net/ena: support large LLQ headers")

Signed-off-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Shay Agroskin <shayagr@amazon.com>
Reviewed-by: Michal Krawczyk <mk@semihalf.com>

drivers/net/ena/ena_ethdev.c

@@ -2865,7 +2865,7 @@ static int ena_process_bool_devarg(const char *key,
 	}
 
 	/* Now, assign it to the proper adapter field. */
-	if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR))
+	if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
 		adapter->use_large_llq_hdr = bool_value;
 
 	return 0;