diff options
| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2024-03-27 15:43:38 -0600 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2024-04-04 13:12:20 +0300 |
| commit | cbb0697e0ded488b7fb001912474bf1dc1c982b4 (patch) | |
| tree | 28cd4c9319332a8161578aae953211b9cbe76838 /drivers/net | |
| parent | 34c34c242a1be24cb5da17fe2954c8c71caf815a (diff) | |
wifi: wil6210: wmi: Use __counted_by() in struct wmi_set_link_monitor_cmd and avoid -Wfamnae warning
Prepare for the coming implementation by GCC and Clang of the
__counted_by attribute. Flexible array members annotated with
__counted_by can have their accesses bounds-checked at run-time
via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE
(for strcpy/memcpy-family functions).
Also, -Wflex-array-member-not-at-end is coming in GCC-14, and we are
getting ready to enable it globally.
So, use the `DEFINE_FLEX()` helper for an on-stack definition of
a flexible structure where the size of the flexible-array member
is known at compile-time, and refactor the rest of the code,
accordingly.
So, with these changes, fix the following warning:
drivers/net/wireless/ath/wil6210/wmi.c:4018:49: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Link: https://github.com/KSPP/linux/issues/202
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/ZgSTCmdP+omePvWg@neat
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wmi.c | 19 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wmi.h | 2 |
2 files changed, 8 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 6fdb77d4c59e..8ff69dc72fb9 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -4015,27 +4015,22 @@ int wmi_set_cqm_rssi_config(struct wil6210_priv *wil, struct wil6210_vif *vif = ndev_to_vif(ndev); int rc; struct { - struct wmi_set_link_monitor_cmd cmd; - s8 rssi_thold; - } __packed cmd = { - .cmd = { - .rssi_hyst = rssi_hyst, - .rssi_thresholds_list_size = 1, - }, - .rssi_thold = rssi_thold, - }; - struct { struct wmi_cmd_hdr hdr; struct wmi_set_link_monitor_event evt; } __packed reply = { .evt = {.status = WMI_FW_STATUS_FAILURE}, }; + DEFINE_FLEX(struct wmi_set_link_monitor_cmd, cmd, + rssi_thresholds_list, rssi_thresholds_list_size, 1); + + cmd->rssi_hyst = rssi_hyst; + cmd->rssi_thresholds_list[0] = rssi_thold; if (rssi_thold > S8_MAX || rssi_thold < S8_MIN || rssi_hyst > U8_MAX) return -EINVAL; - rc = wmi_call(wil, WMI_SET_LINK_MONITOR_CMDID, vif->mid, &cmd, - sizeof(cmd), WMI_SET_LINK_MONITOR_EVENTID, + rc = wmi_call(wil, WMI_SET_LINK_MONITOR_CMDID, vif->mid, cmd, + __struct_size(cmd), WMI_SET_LINK_MONITOR_EVENTID, &reply, sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS); if (rc) { wil_err(wil, "WMI_SET_LINK_MONITOR_CMDID failed, rc %d\n", rc); diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h index b47606d9068c..38f64524019e 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.h +++ b/drivers/net/wireless/ath/wil6210/wmi.h @@ -3320,7 +3320,7 @@ struct wmi_set_link_monitor_cmd { u8 rssi_hyst; u8 reserved[12]; u8 rssi_thresholds_list_size; - s8 rssi_thresholds_list[]; + s8 rssi_thresholds_list[] __counted_by(rssi_thresholds_list_size); } __packed; /* wmi_link_monitor_event_type */ |