PWN-Hunter/android_kernel_xiaomi_sdm845
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bnx2x: Protecting the link change indication

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Without this lock, in some race conditions the driver missed link
change indication

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eilon Greenstein 2009-01-14 21:26:01 -08:00 committed by David S. Miller
parent 3c96c68b0c
commit a5e9a7cfad
1 changed files with 5 additions and 3 deletions
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8
drivers/net/bnx2x_main.c
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@ -2234,9 +2234,7 @@ static void bnx2x_link_attn(struct bnx2x *bp)
/* Make sure that we are synced with the current statistics */
bnx2x_stats_handle(bp, STATS_EVENT_STOP);
bnx2x_acquire_phy_lock(bp);
bnx2x_link_update(&bp->link_params, &bp->link_vars);
bnx2x_release_phy_lock(bp);
if (bp->link_vars.link_up) {
@ -2485,6 +2483,8 @@ static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
if (asserted & ATTN_HARD_WIRED_MASK) {
if (asserted & ATTN_NIG_FOR_FUNC) {
bnx2x_acquire_phy_lock(bp);
/* save nig interrupt mask */
bp->nig_mask = REG_RD(bp, nig_int_mask_addr);
REG_WR(bp, nig_int_mask_addr, 0);
@ -2540,8 +2540,10 @@ static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
REG_WR(bp, hc_addr, asserted);
/* now set back the mask */
if (asserted & ATTN_NIG_FOR_FUNC)
if (asserted & ATTN_NIG_FOR_FUNC) {
REG_WR(bp, nig_int_mask_addr, bp->nig_mask);
bnx2x_release_phy_lock(bp);
}
}
static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)