diff options
author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-15 02:11:44 +0100 |
---|---|---|
committer | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-17 14:00:39 +0100 |
commit | 5224f79096170bf7b92cc8fe42a12f44b91e5f62 (patch) | |
tree | 4a1aa6767d05015793171bb77b07b042a830fc4c /include/sound | |
parent | Linux 5.17-rc2 (diff) | |
download | linux-5224f79096170bf7b92cc8fe42a12f44b91e5f62.tar.xz linux-5224f79096170bf7b92cc8fe42a12f44b91e5f62.zip |
treewide: Replace zero-length arrays with flexible-array members
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].
This code was transformed with the help of Coccinelle:
(next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch)
@@
identifier S, member, array;
type T1, T2;
@@
struct S {
...
T1 member;
T2 array[
- 0
];
};
UAPI and wireless changes were intentionally excluded from this patch
and will be sent out separately.
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/78
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Diffstat (limited to 'include/sound')
-rw-r--r-- | include/sound/sof/channel_map.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/sound/sof/channel_map.h b/include/sound/sof/channel_map.h index fd3a30fcf756..d363f0ca6979 100644 --- a/include/sound/sof/channel_map.h +++ b/include/sound/sof/channel_map.h @@ -39,7 +39,7 @@ struct sof_ipc_channel_map { uint32_t ext_id; uint32_t ch_mask; uint32_t reserved; - int32_t ch_coeffs[0]; + int32_t ch_coeffs[]; } __packed; /** @@ -55,7 +55,7 @@ struct sof_ipc_stream_map { struct sof_ipc_cmd_hdr hdr; uint32_t num_ch_map; uint32_t reserved[3]; - struct sof_ipc_channel_map ch_map[0]; + struct sof_ipc_channel_map ch_map[]; } __packed; #endif /* __IPC_CHANNEL_MAP_H__ */ |