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authorEric Biggers <ebiggers@google.com>2017-06-22 21:32:45 +0300
committerMike Snitzer <snitzer@redhat.com>2017-08-28 18:47:18 +0300
commit5916a22b83041b07d63191fe06206ae0fff6ec7a (patch)
treec1d154dcb136fe8e82e57e40f667557fc276c762 /include/linux/device-mapper.h
parent3f2e539359bd0e709eb35127dc04df6bf8c3e8de (diff)
downloadlinux-5916a22b83041b07d63191fe06206ae0fff6ec7a.tar.xz
dm: constify argument arrays
The arrays of 'struct dm_arg' are never modified by the device-mapper core, so constify them so that they are placed in .rodata. (Exception: the args array in dm-raid cannot be constified because it is allocated on the stack and modified.) Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'include/linux/device-mapper.h')
-rw-r--r--include/linux/device-mapper.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 4f2b3b2076c4..3b5fdf308148 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -387,7 +387,7 @@ struct dm_arg {
* Validate the next argument, either returning it as *value or, if invalid,
* returning -EINVAL and setting *error.
*/
-int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg(const struct dm_arg *arg, struct dm_arg_set *arg_set,
unsigned *value, char **error);
/*
@@ -395,7 +395,7 @@ int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
* arg->min and arg->max further arguments. Either return the size as
* *num_args or, if invalid, return -EINVAL and set *error.
*/
-int dm_read_arg_group(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg_group(const struct dm_arg *arg, struct dm_arg_set *arg_set,
unsigned *num_args, char **error);
/*