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qcacld-3.0: Initialize fisa flow entry napi id to other than zero value

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Zero initialization of Napi id can cause napi id zero context to flush
flow that are uninitialized. Which may cause a race condition if some
other napi context is using the uninitialized fisa flow entry during the
flow learning phase.

Change-Id: Iedca4ee112efa29c70a632c4a365e95f71e8f506
CRs-Fixed: 2864633
This commit is contained in:
sandhu 2021-02-03 21:18:44 -08:00 • committed by Gerrit - the friendly Code Review server
commit 80b3077490
1 changed files with 8 additions and 0 deletions
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8
core/dp/txrx3.0/dp_rx_fst.c
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@ -28,6 +28,8 @@
/* Timeout in milliseconds to wait for CMEM FST HTT response */
#define DP_RX_FST_CMEM_RESP_TIMEOUT 2000
#define INVALID_NAPI 0Xff
#ifdef WLAN_SUPPORT_RX_FISA
void dp_fisa_rx_fst_update_work(void *arg);
@ -205,8 +207,10 @@ static QDF_STATUS dp_rx_fst_cmem_init(struct dp_rx_fst *fst)
QDF_STATUS dp_rx_fst_attach(struct dp_soc *soc, struct dp_pdev *pdev)
{
struct dp_rx_fst *fst;
struct dp_fisa_rx_sw_ft *ft_entry;
uint8_t *hash_key;
struct wlan_cfg_dp_soc_ctxt *cfg = soc->wlan_cfg_ctx;
int i = 0;
QDF_STATUS status;
/* Check if it is enabled in the INI */
@ -250,6 +254,10 @@ QDF_STATUS dp_rx_fst_attach(struct dp_soc *soc, struct dp_pdev *pdev)
if (!fst->base)
goto out2;
ft_entry = (struct dp_fisa_rx_sw_ft *)fst->base;
for (i = 0; i < fst->max_entries; i++)
ft_entry[i].napi_id = INVALID_NAPI;
fst->hal_rx_fst = hal_rx_fst_attach(soc->osdev,
&fst->hal_rx_fst_base_paddr,
fst->max_entries,