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authorRahul Lakkireddy <rahul.lakkireddy@chelsio.com>2021-08-26 02:59:42 +0530
committerDavid S. Miller <davem@davemloft.net>2021-08-26 10:23:24 +0100
commit43fed4d48d325e0a61dc2638a84da972fbb1087b (patch)
treeda467b8383398f35cdaaf788b3e630c01760268e
parent38d57551ddabec878add10ff8eb18f4b63fff2da (diff)
cxgb4: dont touch blocked freelist bitmap after free
When adapter init fails, the blocked freelist bitmap is already freed up and should not be touched. So, move the bitmap zeroing closer to where it was successfully allocated. Also handle adapter init failure unwind path immediately and avoid setting up RDMA memory windows. Fixes: 5b377d114f2b ("cxgb4: Add debugfs facility to inject FL starvation") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index dbf9a0e6601d..710cb00ce3a3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -5068,6 +5068,7 @@ static int adap_init0(struct adapter *adap, int vpd_skip)
ret = -ENOMEM;
goto bye;
}
+ bitmap_zero(adap->sge.blocked_fl, adap->sge.egr_sz);
#endif
params[0] = FW_PARAM_PFVF(CLIP_START);
@@ -6788,13 +6789,11 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
setup_memwin(adapter);
err = adap_init0(adapter, 0);
-#ifdef CONFIG_DEBUG_FS
- bitmap_zero(adapter->sge.blocked_fl, adapter->sge.egr_sz);
-#endif
- setup_memwin_rdma(adapter);
if (err)
goto out_unmap_bar;
+ setup_memwin_rdma(adapter);
+
/* configure SGE_STAT_CFG_A to read WC stats */
if (!is_t4(adapter->params.chip))
t4_write_reg(adapter, SGE_STAT_CFG_A, STATSOURCE_T5_V(7) |