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qcacld-3.0: reduce stack frame size for __wlan_hdd_cfg80211_get_wifi_info

Selaa lähdekoodia 
Encountered build failure as below:
error: stack frame size (2480) exceeds limit (2048) in
'wlan_hdd_cfg80211_get_wifi_info' [-Werror,-Wframe-larger-than]

To fix it, allocate the buffer for firmware version dynamically.

Change-Id: If768d4eccf5c6e85735c3bf3afaaf47759f0d40e
CRs-Fixed: 3343984
This commit is contained in:
Yu Wang
2022-11-23 12:18:43 +08:00
committed by Madan Koyyalamudi
vanhempi 07dcce718b
commit 3e2d8bbb7d
1 muutettua tiedostoa jossa 21 lisäystä ja 16 poistoa
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37
core/hdd/src/wlan_hdd_cfg80211.c
Näytä tiedosto

@@ -7252,8 +7252,7 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
{
struct hdd_context *hdd_ctx = wiphy_priv(wiphy);
struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_GET_MAX + 1];
tSirVersionString driver_version;
tSirVersionString firmware_version;
uint8_t *firmware_version = NULL;
int status;
struct sk_buff *reply_skb;
uint32_t skb_len = 0, count = 0;
@@ -7281,9 +7280,7 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION]) {
hdd_debug("Rcvd req for Driver version");
strlcpy(driver_version, QWLAN_VERSIONSTR,
sizeof(driver_version));
skb_len += strlen(driver_version) + 1;
skb_len += strlen(QWLAN_VERSIONSTR) + 1;
count++;
}
@@ -7292,16 +7289,20 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
if (!pld_get_soc_info(hdd_ctx->parent_dev, &info))
stt_flag = true;
snprintf(firmware_version, sizeof(firmware_version),
"FW:%d.%d.%d.%d.%d.%d HW:%s STT:%s",
hdd_ctx->fw_version_info.major_spid,
hdd_ctx->fw_version_info.minor_spid,
hdd_ctx->fw_version_info.siid,
hdd_ctx->fw_version_info.rel_id,
hdd_ctx->fw_version_info.crmid,
hdd_ctx->fw_version_info.sub_id,
hdd_ctx->target_hw_name,
(stt_flag ? info.fw_build_id : " "));
firmware_version = qdf_mem_malloc(SIR_VERSION_STRING_LEN);
if (!firmware_version)
return -ENOMEM;
snprintf(firmware_version, SIR_VERSION_STRING_LEN,
"FW:%d.%d.%d.%d.%d.%d HW:%s STT:%s",
hdd_ctx->fw_version_info.major_spid,
hdd_ctx->fw_version_info.minor_spid,
hdd_ctx->fw_version_info.siid,
hdd_ctx->fw_version_info.rel_id,
hdd_ctx->fw_version_info.crmid,
hdd_ctx->fw_version_info.sub_id,
hdd_ctx->target_hw_name,
(stt_flag ? info.fw_build_id : " "));
skb_len += strlen(firmware_version) + 1;
count++;
}
@@ -7314,6 +7315,7 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
if (count == 0) {
hdd_err("unknown attribute in get_wifi_info request");
qdf_mem_free(firmware_version);
return -EINVAL;
}
@@ -7322,13 +7324,14 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
if (!reply_skb) {
hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
qdf_mem_free(firmware_version);
return -ENOMEM;
}
if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION]) {
if (nla_put_string(reply_skb,
QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION,
driver_version))
QWLAN_VERSIONSTR))
goto error_nla_fail;
}
@@ -7346,10 +7349,12 @@ __wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
goto error_nla_fail;
}
qdf_mem_free(firmware_version);
return cfg80211_vendor_cmd_reply(reply_skb);
error_nla_fail:
hdd_err("nla put fail");
qdf_mem_free(firmware_version);
kfree_skb(reply_skb);
return -EINVAL;
}