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bnx2x: limit number of interrupt vectors for 57711

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Original straightforward division may lead to zeroing number of SB and
null-pointer dereference when device is short of MSIX vectors or lacks
MSIX capabilities.

Reported-by: Vladislav Zolotarov <vladz@cloudius-systems.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov
2014-01-05 18:33:50 +02:00
committed by David S. Miller
parent a02bdd423d
commit e848582cee
2 changed files with 5 additions and 3 deletions
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drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
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@@ -2499,4 +2499,6 @@ void bnx2x_set_local_cmng(struct bnx2x *bp);
#define MCPR_SCRATCH_BASE(bp) \
(CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
#define E1H_MAX_MF_SB_COUNT (HC_SB_MAX_SB_E1X/(E1HVN_MAX * PORT_MAX))
#endif /* bnx2x.h */