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authorGustavo A. R. Silva <gustavoars@kernel.org>2022-02-15 04:11:44 +0300
committerGustavo A. R. Silva <gustavoars@kernel.org>2022-02-17 16:00:39 +0300
commit5224f79096170bf7b92cc8fe42a12f44b91e5f62 (patch)
tree4a1aa6767d05015793171bb77b07b042a830fc4c /arch/sparc
parent26291c54e111ff6ba87a164d85d4a4e134b7315c (diff)
downloadlinux-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.h10
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 {