diff options
author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-15 04:11:44 +0300 |
---|---|---|
committer | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-17 16:00:39 +0300 |
commit | 5224f79096170bf7b92cc8fe42a12f44b91e5f62 (patch) | |
tree | 4a1aa6767d05015793171bb77b07b042a830fc4c /drivers/staging | |
parent | 26291c54e111ff6ba87a164d85d4a4e134b7315c (diff) | |
download | linux-5224f79096170bf7b92cc8fe42a12f44b91e5f62.tar.xz |
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 'drivers/staging')
-rw-r--r-- | drivers/staging/r8188eu/include/rtw_cmd.h | 10 | ||||
-rw-r--r-- | drivers/staging/rtl8712/rtl871x_cmd.h | 8 | ||||
-rw-r--r-- | drivers/staging/rtl8723bs/include/ieee80211.h | 2 | ||||
-rw-r--r-- | drivers/staging/rtl8723bs/include/rtw_cmd.h | 2 | ||||
-rw-r--r-- | drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h | 2 |
5 files changed, 12 insertions, 12 deletions
diff --git a/drivers/staging/r8188eu/include/rtw_cmd.h b/drivers/staging/r8188eu/include/rtw_cmd.h index cf0945ae11c1..f8991a0493d0 100644 --- a/drivers/staging/r8188eu/include/rtw_cmd.h +++ b/drivers/staging/r8188eu/include/rtw_cmd.h @@ -73,7 +73,7 @@ struct c2h_evt_hdr { u8 id:4; u8 plen:4; u8 seq; - u8 payload[0]; + u8 payload[]; }; #define c2h_evt_exist(c2h_evt) ((c2h_evt)->id || (c2h_evt)->plen) @@ -662,25 +662,25 @@ struct getcurtxpwrlevel_rspi { struct setprobereqextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setassocreqextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setproberspextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setassocrspextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct addBaReq_parm { diff --git a/drivers/staging/rtl8712/rtl871x_cmd.h b/drivers/staging/rtl8712/rtl871x_cmd.h index ddd69c4ae208..95e9ea5b2d98 100644 --- a/drivers/staging/rtl8712/rtl871x_cmd.h +++ b/drivers/staging/rtl8712/rtl871x_cmd.h @@ -657,25 +657,25 @@ struct setra_parm { struct setprobereqextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setassocreqextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setproberspextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct setassocrspextraie_parm { unsigned char e_id; unsigned char ie_len; - unsigned char ie[0]; + unsigned char ie[]; }; struct addBaReq_parm { diff --git a/drivers/staging/rtl8723bs/include/ieee80211.h b/drivers/staging/rtl8723bs/include/ieee80211.h index c11d7e2d2347..1e627dc0044d 100644 --- a/drivers/staging/rtl8723bs/include/ieee80211.h +++ b/drivers/staging/rtl8723bs/include/ieee80211.h @@ -204,7 +204,7 @@ struct ieee_param { struct ieee_param_ex { u32 cmd; u8 sta_addr[ETH_ALEN]; - u8 data[0]; + u8 data[]; }; struct sta_data { diff --git a/drivers/staging/rtl8723bs/include/rtw_cmd.h b/drivers/staging/rtl8723bs/include/rtw_cmd.h index 28d2d2732374..1bf030cbbbbe 100644 --- a/drivers/staging/rtl8723bs/include/rtw_cmd.h +++ b/drivers/staging/rtl8723bs/include/rtw_cmd.h @@ -94,7 +94,7 @@ struct c2h_evt_hdr { u8 id:4; u8 plen:4; u8 seq; - u8 payload[0]; + u8 payload[]; }; struct c2h_evt_hdr_88xx { diff --git a/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h b/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h index 81db7fb76d6d..c93f2f3e87bb 100644 --- a/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h +++ b/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h @@ -45,7 +45,7 @@ struct vchiq_header { /* Size of message data. */ unsigned int size; - char data[0]; /* message */ + char data[]; /* message */ }; struct vchiq_element { |