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qcacld-3.0: Avoid allocating large chunk of memory statically

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Currently in wlan_is_nan_allowed_on_6ghz_freq and
__wlan_hdd_sysfs_freq_show static allocation of 6 GHz
channel list is present which leads to stack overflow.

To address this issue allocate 6 GHz channel list
dynamically.

Change-Id: If363270ab51516b67c68399f805a0434ccbb5bd3
CRs-Fixed: 3557442
This commit is contained in:
Asutosh Mohapatra
2023-07-11 13:24:03 +05:30
committed by Rahul Choudhary
parent 3a331ae870
commit 43249aa86c
2 changed files with 28 additions and 8 deletions
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21
components/nan/core/src/nan_api.c
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@@ -1,6 +1,6 @@
/*
* Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -415,8 +415,15 @@ static bool
wlan_is_nan_allowed_on_6ghz_freq(struct wlan_objmgr_pdev *pdev, uint32_t freq)
{
QDF_STATUS status;
struct regulatory_channel chan_list[NUM_6GHZ_CHANNELS];
struct regulatory_channel *chan_list;
uint32_t len_6g =
NUM_6GHZ_CHANNELS * sizeof(struct regulatory_channel);
uint16_t i;
bool ret = false;
chan_list = qdf_mem_malloc(len_6g);
if (!chan_list)
return ret;
status = wlan_reg_get_6g_ap_master_chan_list(pdev,
REG_VERY_LOW_POWER_AP,
@@ -424,11 +431,15 @@ wlan_is_nan_allowed_on_6ghz_freq(struct wlan_objmgr_pdev *pdev, uint32_t freq)
for (i = 0; i < NUM_6GHZ_CHANNELS; i++) {
if ((freq == chan_list[i].center_freq) &&
(chan_list[i].state == CHANNEL_STATE_ENABLE))
return true;
(chan_list[i].state == CHANNEL_STATE_ENABLE)) {
ret = true;
goto end;
}
}
return false;
end:
qdf_mem_free(chan_list);
return ret;
}
bool wlan_is_nan_allowed_on_freq(struct wlan_objmgr_pdev *pdev, uint32_t freq)