From: Sameeh Jubran Date: Wed, 1 May 2019 16:47:06 +0300 Subject: [PATCH] net: ena: fix incorrect test of supported hash function Origin: https://git.kernel.org/linus/d3cfe7ddbc3dfbb9b201615b7fef8fd66d1b5fe8 Bug-Debian: https://bugs.debian.org/941291 ena_com_set_hash_function() tests if a hash function is supported by the device before setting it. The test returns the opposite result than needed. Reverse the condition to return the correct value. Also use the BIT macro instead of inline shift. Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)") Signed-off-by: Arthur Kiyanovski Signed-off-by: Sameeh Jubran Signed-off-by: David S. Miller --- drivers/net/ethernet/amazon/ena/ena_com.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index b17d435de09f..f9bc0b831a1a 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -2195,7 +2195,7 @@ int ena_com_set_hash_function(struct ena_com_dev *ena_dev) if (unlikely(ret)) return ret; - if (get_resp.u.flow_hash_func.supported_func & (1 << rss->hash_func)) { + if (!(get_resp.u.flow_hash_func.supported_func & BIT(rss->hash_func))) { pr_err("Func hash %d isn't supported by device, abort\n", rss->hash_func); return -EOPNOTSUPP; -- 2.17.1