summaryrefslogtreecommitdiff
path: root/drivers/md/dm-table.c
diff options
context:
space:
mode:
authorEric Biggers <ebiggers@google.com>2017-06-22 11:32:45 -0700
committerMike Snitzer <snitzer@redhat.com>2017-08-28 11:47:18 -0400
commit5916a22b83041b07d63191fe06206ae0fff6ec7a (patch)
treec1d154dcb136fe8e82e57e40f667557fc276c762 /drivers/md/dm-table.c
parent3f2e539359bd0e709eb35127dc04df6bf8c3e8de (diff)
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 'drivers/md/dm-table.c')
-rw-r--r--drivers/md/dm-table.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 28a4071cdf85..ef7b8f201f73 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -806,7 +806,8 @@ int dm_table_add_target(struct dm_table *t, const char *type,
/*
* Target argument parsing helpers.
*/
-static int validate_next_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
+static int validate_next_arg(const struct dm_arg *arg,
+ struct dm_arg_set *arg_set,
unsigned *value, char **error, unsigned grouped)
{
const char *arg_str = dm_shift_arg(arg_set);
@@ -824,14 +825,14 @@ static int validate_next_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
return 0;
}
-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)
{
return validate_next_arg(arg, arg_set, value, error, 0);
}
EXPORT_SYMBOL(dm_read_arg);
-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 *value, char **error)
{
return validate_next_arg(arg, arg_set, value, error, 1);