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Message-ID: <Y9xkECG3uTZ6T1dN@work>
Date: Thu, 2 Feb 2023 19:32:00 -0600
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Amitkumar Karwar <amitkarwar@...il.com>,
Ganapathi Bhat <ganapathi017@...il.com>,
Sharvari Harisangam <sharvari.harisangam@....com>,
Xinming Hu <huxinming820@...il.com>,
Kalle Valo <kvalo@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavoars@...nel.org>,
linux-hardening@...r.kernel.org
Subject: [PATCH][next] wifi: mwifiex: Replace one-element arrays with
flexible-array members
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element arrays with flexible-array
members in multiple structures.
This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].
This results in no differences in binary output.
Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/256
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
drivers/net/wireless/marvell/mwifiex/fw.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
index b4f945a549f7..9616bd8b49f1 100644
--- a/drivers/net/wireless/marvell/mwifiex/fw.h
+++ b/drivers/net/wireless/marvell/mwifiex/fw.h
@@ -41,7 +41,7 @@ struct mwifiex_fw_header {
struct mwifiex_fw_data {
struct mwifiex_fw_header header;
__le32 seq_num;
- u8 data[1];
+ u8 data[];
} __packed;
struct mwifiex_fw_dump_header {
@@ -641,7 +641,7 @@ struct mwifiex_ie_types_header {
struct mwifiex_ie_types_data {
struct mwifiex_ie_types_header header;
- u8 data[1];
+ u8 data[];
} __packed;
#define MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET 0x01
@@ -799,7 +799,7 @@ struct mwifiex_ie_types_rates_param_set {
struct mwifiex_ie_types_ssid_param_set {
struct mwifiex_ie_types_header header;
- u8 ssid[1];
+ u8 ssid[];
} __packed;
struct mwifiex_ie_types_num_probes {
@@ -907,7 +907,7 @@ struct mwifiex_ie_types_tdls_idle_timeout {
struct mwifiex_ie_types_rsn_param_set {
struct mwifiex_ie_types_header header;
- u8 rsn_ie[1];
+ u8 rsn_ie[];
} __packed;
#define KEYPARAMSET_FIXED_LEN 6
@@ -1433,7 +1433,7 @@ struct mwifiex_tdls_stop_cs_params {
struct host_cmd_ds_tdls_config {
__le16 tdls_action;
- u8 tdls_data[1];
+ u8 tdls_data[];
} __packed;
struct mwifiex_chan_desc {
@@ -1574,13 +1574,13 @@ struct ie_body {
struct host_cmd_ds_802_11_scan {
u8 bss_mode;
u8 bssid[ETH_ALEN];
- u8 tlv_buffer[1];
+ u8 tlv_buffer[];
} __packed;
struct host_cmd_ds_802_11_scan_rsp {
__le16 bss_descript_size;
u8 number_of_sets;
- u8 bss_desc_and_tlv_buffer[1];
+ u8 bss_desc_and_tlv_buffer[];
} __packed;
struct host_cmd_ds_802_11_scan_ext {
@@ -1596,7 +1596,7 @@ struct mwifiex_ie_types_bss_mode {
struct mwifiex_ie_types_bss_scan_rsp {
struct mwifiex_ie_types_header header;
u8 bssid[ETH_ALEN];
- u8 frame_body[1];
+ u8 frame_body[];
} __packed;
struct mwifiex_ie_types_bss_scan_info {
@@ -1733,7 +1733,7 @@ struct mwifiex_ie_types_local_pwr_constraint {
struct mwifiex_ie_types_wmm_param_set {
struct mwifiex_ie_types_header header;
- u8 wmm_ie[1];
+ u8 wmm_ie[];
} __packed;
struct mwifiex_ie_types_mgmt_frame {
@@ -1959,7 +1959,7 @@ struct host_cmd_tlv_wep_key {
struct mwifiex_ie_types_header header;
u8 key_index;
u8 is_default;
- u8 key[1];
+ u8 key[];
};
struct host_cmd_tlv_auth_type {
--
2.34.1
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