platform/chrome: cros_ec_commands: Replace zero-length array with flexible-array...

There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 1fcfe9e..a3a9a87 100644 (file)
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -1419,7 +1419,7 @@ struct ec_response_flash_info_2 {
        uint16_t num_banks_total;
        /* Number of banks described in banks array. */
        uint16_t num_banks_desc;
-       struct ec_flash_bank banks[0];
+       struct ec_flash_bank banks[];
 } __ec_align4;
 
 /*
@@ -2420,12 +2420,12 @@ struct ec_response_motion_sense_fifo_info {
        /* Total amount of vector lost */
        uint16_t total_lost;
        /* Lost events since the last fifo_info, per sensors */
-       uint16_t lost[0];
+       uint16_t lost[];
 } __ec_todo_packed;
 
 struct ec_response_motion_sense_fifo_data {
        uint32_t number_data;
-       struct ec_response_motion_sensor_data data[0];
+       struct ec_response_motion_sensor_data data[];
 } __ec_todo_packed;
 
 /* List supported activity recognition */
@@ -3093,7 +3093,7 @@ struct ec_response_tmp006_get_calibration_v1 {
        uint8_t algorithm;
        uint8_t num_params;
        uint8_t reserved[2];
-       float val[0];
+       float val[];
 } __ec_align4;
 
 struct ec_params_tmp006_set_calibration_v1 {
@@ -3101,7 +3101,7 @@ struct ec_params_tmp006_set_calibration_v1 {
        uint8_t algorithm;
        uint8_t num_params;
        uint8_t reserved;
-       float val[0];
+       float val[];
 } __ec_align4;
 
 
@@ -5076,7 +5076,7 @@ struct ec_response_pd_log {
        uint8_t type;       /* event type : see PD_EVENT_xx below */
        uint8_t size_port;  /* [7:5] port number [4:0] payload size in bytes */
        uint16_t data;      /* type-defined data payload */
-       uint8_t payload[0]; /* optional additional data payload: 0..16 bytes */
+       uint8_t payload[];  /* optional additional data payload: 0..16 bytes */
 } __ec_align4;
 
 /* The timestamp is the microsecond counter shifted to get about a ms. */
@@ -5789,7 +5789,7 @@ struct ec_response_fp_encryption_status {
 
 struct ec_response_tp_frame_info {
        uint32_t n_frames;
-       uint32_t frame_sizes[0];
+       uint32_t frame_sizes[];
 } __ec_align4;
 
 /* Create a snapshot of current frame readings */