diff options
| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2023-03-06 14:59:04 -0600 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2023-04-24 13:35:11 +0800 |
| commit | 32d2a15ec54a3d8b708b343e50072ccb0e5da83f (patch) | |
| tree | 87dee3788924eace1c7f9a14262005aea4ea440f | |
| parent | 7e364e56293bb98cae1b55fd835f5991c4e96e7d (diff) | |
platform/chrome: Replace fake flexible arrays with flexible-array member
Zero-length arrays as fake flexible arrays are deprecated and we are
moving towards adopting C99 flexible-array members instead.
Use the DECLARE_FLEX_ARRAY() helper macro to transform zero-length
arrays in unions with flexible-array members.
Address the following warning found with GCC-13 and
-fstrict-flex-arrays=3 enabled:
drivers/iio/accel/cros_ec_accel_legacy.c:66:46: warning: array subscript <unknown> is outside array bounds of ‘struct ec_response_motion_sensor_data[0]’ [-Warray-bounds=]
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].
Link: https://github.com/KSPP/linux/issues/21
Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/262
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/ZAZUGBmSLc5wg7AK@work
| -rw-r--r-- | include/linux/platform_data/cros_ec_commands.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h index 7e9c76aedd2d..ab721cf13a98 100644 --- a/include/linux/platform_data/cros_ec_commands.h +++ b/include/linux/platform_data/cros_ec_commands.h @@ -2701,7 +2701,7 @@ struct ec_response_motion_sense { * Sensor data is truncated if response_max is too small * for holding all the data. */ - struct ec_response_motion_sensor_data sensor[0]; + DECLARE_FLEX_ARRAY(struct ec_response_motion_sensor_data, sensor); } dump; /* Used for MOTIONSENSE_CMD_INFO. */ |