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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>,
	Karra Satwik <kaara.satwik@chelsio.com>
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>,
	Raslan Darawsheh <rasland@mellanox.com>,
	Xueming Zhang <xuemingx.zhang@intel.com>
Subject: [dpdk-dev] [PATCH] net/cxgbe: fix build with clang 3.4.2
Date: Wed, 18 Mar 2020 12:52:36 +0000	[thread overview]
Message-ID: <20200318125236.652514-1-ferruh.yigit@intel.com> (raw)

Build error:
.../drivers/net/cxgbe/cxgbe_flow.c:315:2:
    error: implicit truncation from 'int' to bitfield changes value
    from -1 to 7 [-Werror,-Wbitfield-constant-conversion]
        CXGBE_FILL_FS(adap->pf, ~0, pf);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.../drivers/net/cxgbe/cxgbe_flow.c:25:2:
    note: expanded from macro 'CXGBE_FILL_FS'
        __CXGBE_FILL_FS(v, m, fs, elem, e)
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.../drivers/net/cxgbe/cxgbe_flow.c:15:18: note:
    expanded from macro '__CXGBE_FILL_FS'
        (fs)->mask.elem = (__m); \
                        ^ ~~~~~
Commit in fixes line changes 'PF_BITWIDTH' to '3', which makes 'fs->pf'
bitfield size '3', changing '~0' to '0x7' to prevent truncation in
assignment.

Fixes: dcd456abe46f ("net/cxgbe: support flow API for matching all packets on PF")

Reported-by: Raslan Darawsheh <rasland@mellanox.com>
Reported-by: Xueming Zhang <xuemingx.zhang@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
Cc: kaara.satwik@chelsio.com
---
 drivers/net/cxgbe/cxgbe_flow.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cxgbe/cxgbe_flow.c b/drivers/net/cxgbe/cxgbe_flow.c
index 13fd78aaf..a46515d3b 100644
--- a/drivers/net/cxgbe/cxgbe_flow.c
+++ b/drivers/net/cxgbe/cxgbe_flow.c
@@ -312,7 +312,7 @@ ch_rte_parsetype_pf(const void *dmask __rte_unused,
 
 	CXGBE_FILL_FS(1, 1, pfvf_vld);
 
-	CXGBE_FILL_FS(adap->pf, ~0, pf);
+	CXGBE_FILL_FS(adap->pf, 0x7, pf);
 	return 0;
 }
 
-- 
2.25.1


             reply	other threads:[~2020-03-18 12:52 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18 12:52 Ferruh Yigit [this message]
2020-03-18 13:09 ` Ferruh Yigit
2020-03-19  7:31   ` Zhang, XuemingX
2020-03-18 13:48 ` Rahul Lakkireddy
2020-03-18 14:46   ` Raslan Darawsheh
2020-03-18 14:48   ` Ferruh Yigit

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