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| 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 /arch/sparc | |
| 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 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/vio.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h index 8a1a83bbb6d5..2d7bdf665fd3 100644 --- a/arch/sparc/include/asm/vio.h +++ b/arch/sparc/include/asm/vio.h @@ -70,7 +70,7 @@ struct vio_dring_register { #define VIO_RX_DRING_DATA 0x0004 u16 resv; u32 num_cookies; - struct ldc_trans_cookie cookies[0]; + struct ldc_trans_cookie cookies[]; }; struct vio_dring_unregister { @@ -161,7 +161,7 @@ struct vio_disk_desc { u64 size; u32 ncookies; u32 resv2; - struct ldc_trans_cookie cookies[0]; + struct ldc_trans_cookie cookies[]; }; #define VIO_DISK_VNAME_LEN 8 @@ -200,13 +200,13 @@ struct vio_disk_devid { u16 resv; u16 type; u32 len; - char id[0]; + char id[]; }; struct vio_disk_efi { u64 lba; u64 len; - char data[0]; + char data[]; }; /* VIO net specific structures and defines */ @@ -246,7 +246,7 @@ struct vio_net_desc { struct vio_dring_hdr hdr; u32 size; u32 ncookies; - struct ldc_trans_cookie cookies[0]; + struct ldc_trans_cookie cookies[]; }; struct vio_net_dext { |