From: Nathan Chancellor <natechancellor@gmail.com>
To: Ariel Elior <Ariel.Elior@cavium.com>,
everest-linux-l2@cavium.com,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Nathan Chancellor <natechancellor@gmail.com>
Subject: [PATCH v2] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor
Date: Mon, 24 Sep 2018 14:34:53 -0700 [thread overview]
Message-ID: <20180924213452.19334-1-natechancellor@gmail.com> (raw)
In-Reply-To: <20180924213120.18979-1-natechancellor@gmail.com>
Clang warns when one enumerated type is implicitly converted to another.
drivers/net/ethernet/qlogic/qed/qed_roce.c:153:12: warning: implicit
conversion from enumeration type 'enum roce_mode' to different
enumeration type 'enum roce_flavor' [-Wenum-conversion]
flavor = ROCE_V2_IPV6;
~ ^~~~~~~~~~~~
drivers/net/ethernet/qlogic/qed/qed_roce.c:156:12: warning: implicit
conversion from enumeration type 'enum roce_mode' to different
enumeration type 'enum roce_flavor' [-Wenum-conversion]
flavor = MAX_ROCE_MODE;
~ ^~~~~~~~~~~~~
2 warnings generated.
Use the appropriate values from the expected type, roce_flavor:
ROCE_V2_IPV6 = RROCE_IPV6 = 2
MAX_ROCE_MODE = MAX_ROCE_FLAVOR = 3
While we're add it, ditch the local variable flavor, we can just return
the value directly from the switch statement.
Link: https://github.com/ClangBuiltLinux/linux/issues/125
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
v1 -> v2:
* s/if statement/switch statement/ in commit message
drivers/net/ethernet/qlogic/qed/qed_roce.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 7d7a64c55ff1..f9167d1354bb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -140,23 +140,16 @@ static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid,
static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode)
{
- enum roce_flavor flavor;
-
switch (roce_mode) {
case ROCE_V1:
- flavor = PLAIN_ROCE;
- break;
+ return PLAIN_ROCE;
case ROCE_V2_IPV4:
- flavor = RROCE_IPV4;
- break;
+ return RROCE_IPV4;
case ROCE_V2_IPV6:
- flavor = ROCE_V2_IPV6;
- break;
+ return RROCE_IPV6;
default:
- flavor = MAX_ROCE_MODE;
- break;
+ return MAX_ROCE_FLAVOR;
}
- return flavor;
}
static void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid)
--
2.19.0
next prev parent reply other threads:[~2018-09-24 21:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-24 21:31 [PATCH] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor Nathan Chancellor
2018-09-24 21:34 ` Nathan Chancellor [this message]
2018-09-27 3:19 ` [PATCH v2] " David Miller
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