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authorGustavo A. R. Silva <gustavoars@kernel.org>2022-02-14 19:11:44 -0600
committerGustavo A. R. Silva <gustavoars@kernel.org>2022-02-17 07:00:39 -0600
commit5224f79096170bf7b92cc8fe42a12f44b91e5f62 (patch)
tree4a1aa6767d05015793171bb77b07b042a830fc4c /include/linux/greybus
parent26291c54e111ff6ba87a164d85d4a4e134b7315c (diff)
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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/linux/greybus')
-rw-r--r--include/linux/greybus/greybus_manifest.h4
-rw-r--r--include/linux/greybus/hd.h2
-rw-r--r--include/linux/greybus/module.h2
3 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/greybus/greybus_manifest.h b/include/linux/greybus/greybus_manifest.h
index 6e62fe478712..bef9eb2093e9 100644
--- a/include/linux/greybus/greybus_manifest.h
+++ b/include/linux/greybus/greybus_manifest.h
@@ -100,7 +100,7 @@ enum {
struct greybus_descriptor_string {
__u8 length;
__u8 id;
- __u8 string[0];
+ __u8 string[];
} __packed;
/*
@@ -175,7 +175,7 @@ struct greybus_manifest_header {
struct greybus_manifest {
struct greybus_manifest_header header;
- struct greybus_descriptor descriptors[0];
+ struct greybus_descriptor descriptors[];
} __packed;
#endif /* __GREYBUS_MANIFEST_H */
diff --git a/include/linux/greybus/hd.h b/include/linux/greybus/hd.h
index d3faf0c1a569..718e2857054e 100644
--- a/include/linux/greybus/hd.h
+++ b/include/linux/greybus/hd.h
@@ -58,7 +58,7 @@ struct gb_host_device {
struct gb_svc *svc;
/* Private data for the host driver */
- unsigned long hd_priv[0] __aligned(sizeof(s64));
+ unsigned long hd_priv[] __aligned(sizeof(s64));
};
#define to_gb_host_device(d) container_of(d, struct gb_host_device, dev)
diff --git a/include/linux/greybus/module.h b/include/linux/greybus/module.h
index 47b839af145d..3efe2133acfd 100644
--- a/include/linux/greybus/module.h
+++ b/include/linux/greybus/module.h
@@ -23,7 +23,7 @@ struct gb_module {
bool disconnected;
- struct gb_interface *interfaces[0];
+ struct gb_interface *interfaces[];
};
#define to_gb_module(d) container_of(d, struct gb_module, dev)