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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Rasesh Mody <rmody@marvell.com>, Shahed Shaikh <shshaikh@marvell.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>,
	dev@dpdk.org, stable@dpdk.org,
	Kevin Traynor <ktraynor@redhat.com>,
	Ajit Khaparde <ajit.khaparde@broadcom.com>
Subject: [dpdk-stable] [PATCH v3 2/4] net/bnx2x: fix build with gcc11
Date: Tue, 11 May 2021 14:14:33 +0100	[thread overview]
Message-ID: <20210511131435.1226820-2-ferruh.yigit@intel.com> (raw)
In-Reply-To: <20210511131435.1226820-1-ferruh.yigit@intel.com>

Reproduced with '--buildtype=debugoptimized' config,
compiler version: gcc (GCC) 12.0.0 20210509 (experimental)

Build error:
In file included from ../drivers/net/bnx2x/bnx2x.c:16:
../drivers/net/bnx2x/bnx2x.c: In function ‘bnx2x_hc_ack_sb’:
../drivers/net/bnx2x/bnx2x.h:1528:35:
         warning: ‘igu_ack’ is used uninitialized [-Wuninitialized]
 #define REG_WR32(sc, offset, val) bnx2x_reg_write32(sc, (offset), val)
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/bnx2x/bnx2x.h:1531:33:
	note: in expansion of macro ‘REG_WR32’
 1531 | #define REG_WR(sc, offset, val) REG_WR32(sc, offset, val)
      |                                 ^~~~~~~~
../drivers/net/bnx2x/bnx2x.h:1916:9: note: in expansion of macro ‘REG_WR’
 1916 |         REG_WR(sc, hc_addr, *val);
      |         ^~~~~~
../drivers/net/bnx2x/bnx2x.h:1905:33: note: ‘igu_ack’ declared here
 1905 |         struct igu_ack_register igu_ack;
      |                                 ^~~~~~~

REG_WR32 requires 'uint32_t', use union instead of cast to 'uint32_t'.

Bugzilla ID: 692
Fixes: 38dff79ba736 ("net/bnx2x: update HSI")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
---
Cc: rmody@marvell.com
Cc: Kevin Traynor <ktraynor@redhat.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>

v3:
* Add missing Bugzilla tag
---
 drivers/net/bnx2x/bnx2x.h | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index e13ab1557418..80d19cbfd665 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -1902,18 +1902,19 @@ bnx2x_hc_ack_sb(struct bnx2x_softc *sc, uint8_t sb_id, uint8_t storm,
 {
 	uint32_t hc_addr = (HC_REG_COMMAND_REG + SC_PORT(sc) * 32 +
 			COMMAND_REG_INT_ACK);
-	struct igu_ack_register igu_ack;
-	uint32_t *val = NULL;
+	union {
+		struct igu_ack_register igu_ack;
+		uint32_t val;
+	} val;
 
-	igu_ack.status_block_index = index;
-	igu_ack.sb_id_and_flags =
+	val.igu_ack.status_block_index = index;
+	val.igu_ack.sb_id_and_flags =
 		((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
 		 (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
 		 (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
 		 (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
 
-	val = (uint32_t *)&igu_ack;
-	REG_WR(sc, hc_addr, *val);
+	REG_WR(sc, hc_addr, val.val);
 
 	/* Make sure that ACK is written */
 	mb();
-- 
2.31.1


  reply	other threads:[~2021-05-11 13:14 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 15:03 [dpdk-stable] [PATCH 1/4] " Ferruh Yigit
2021-05-10 15:03 ` [dpdk-stable] [PATCH 2/4] " Ferruh Yigit
2021-05-10 15:03 ` [dpdk-stable] [PATCH 3/4] net/ice/base: " Ferruh Yigit
2021-05-10 17:04   ` [dpdk-stable] [dpdk-dev] " Wang, Haiyue
2021-05-10 17:13     ` Wang, Haiyue
2021-05-10 17:31       ` Ferruh Yigit
2021-05-10 17:55         ` Stillwell Jr, Paul M
2021-05-10 17:28     ` Ferruh Yigit
2021-05-11  1:59       ` Wang, Haiyue
2021-05-11  9:33         ` Ferruh Yigit
2021-05-11  9:08       ` Kevin Traynor
2021-05-10 15:03 ` [dpdk-stable] [PATCH 4/4] net/tap: " Ferruh Yigit
2021-05-11 12:28   ` [dpdk-stable] [dpdk-dev] " Kevin Traynor
2021-05-11 11:44 ` [dpdk-stable] [PATCH v2 1/4] net/bnx2x: " Ferruh Yigit
2021-05-11 11:44   ` [dpdk-stable] [PATCH v2 2/4] " Ferruh Yigit
2021-05-11 12:27     ` Kevin Traynor
2021-05-11 11:44   ` [dpdk-stable] [PATCH v2 3/4] net/ice/base: " Ferruh Yigit
2021-05-11 11:44   ` [dpdk-stable] [PATCH v2 4/4] net/tap: " Ferruh Yigit
2021-05-11 12:26   ` [dpdk-stable] [PATCH v2 1/4] net/bnx2x: " Kevin Traynor
2021-05-11 13:14 ` [dpdk-stable] [PATCH v3 " Ferruh Yigit
2021-05-11 13:14   ` Ferruh Yigit [this message]
2021-05-11 13:14   ` [dpdk-stable] [PATCH v3 3/4] net/ice/base: " Ferruh Yigit
2021-05-12  7:43     ` Wang, Haiyue
2021-05-11 13:14   ` [dpdk-stable] [PATCH v3 4/4] net/tap: " Ferruh Yigit
2021-05-12 13:04   ` [dpdk-stable] [PATCH v3 1/4] net/bnx2x: " Ferruh Yigit

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