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net/bnx2x: fix build with GCC 11

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

Build error:
In file included from ../drivers/net/bnx2x/bnx2x_rxtx.c:8:
../drivers/net/bnx2x/bnx2x_rxtx.c: In function ‘bnx2x_upd_rx_prod_fast’:
../drivers/net/bnx2x/bnx2x.h:1528:35:
    warning: ‘rx_prods’ 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_rxtx.c:331:9:
	note: in expansion of macro ‘REG_WR’
  331 |         REG_WR(sc, fp->ustorm_rx_prods_offset, val[0]);
      |         ^~~~~~
../drivers/net/bnx2x/bnx2x_rxtx.c:324:40: note: ‘rx_prods’ declared here
  324 |         struct ustorm_eth_rx_producers rx_prods = { 0 };
      |                                        ^~~~~~~~

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

Bugzilla ID: 692
Fixes: 38dff79ba7 ("net/bnx2x: update HSI")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
This commit is contained in:
Ferruh Yigit 2021-05-11 14:14:32 +01:00
parent a4d5f9f9c2
commit b3c740e037
1 changed files with 7 additions and 6 deletions
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13
drivers/net/bnx2x/bnx2x_rxtx.c
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@ -321,14 +321,15 @@ static inline void
bnx2x_upd_rx_prod_fast(struct bnx2x_softc *sc, struct bnx2x_fastpath *fp,
uint16_t rx_bd_prod, uint16_t rx_cq_prod)
{
struct ustorm_eth_rx_producers rx_prods = { 0 };
uint32_t *val = NULL;
union {
struct ustorm_eth_rx_producers rx_prods;
uint32_t val;
} val = { {0} };
rx_prods.bd_prod = rx_bd_prod;
rx_prods.cqe_prod = rx_cq_prod;
val.rx_prods.bd_prod = rx_bd_prod;
val.rx_prods.cqe_prod = rx_cq_prod;
val = (uint32_t *)&rx_prods;
REG_WR(sc, fp->ustorm_rx_prods_offset, val[0]);
REG_WR(sc, fp->ustorm_rx_prods_offset, val.val);
}
static uint16_t