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device_cgroup: fix the comment format for recently added functions

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Moving more extensive explanations to the end of the comment.

Cc: Li Zefan <lizefan@huawei.com>
Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Aristeu Rozanski 2014-04-24 15:33:21 -04:00 committed by Tejun Heo
parent 79d719749d
commit f5f3cf6f7e
1 changed files with 16 additions and 17 deletions
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33
security/device_cgroup.c
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@ -306,17 +306,17 @@ static int devcgroup_seq_show(struct seq_file *m, void *v)
}
/**
* match_exception - iterates the exception list trying to match a rule
* based on type, major, minor and access type. It is
* considered a match if an exception is found that
* will contain the entire range of provided parameters.
* match_exception - iterates the exception list trying to find a complete match
* @exceptions: list of exceptions
* @type: device type (DEV_BLOCK or DEV_CHAR)
* @major: device file major number, ~0 to match all
* @minor: device file minor number, ~0 to match all
* @access: permission mask (ACC_READ, ACC_WRITE, ACC_MKNOD)
*
* returns: true in case it matches an exception completely
* It is considered a complete match if an exception is found that will
* contain the entire range of provided parameters.
*
* Return: true in case it matches an exception completely
*/
static bool match_exception(struct list_head *exceptions, short type,
u32 major, u32 minor, short access)
@ -341,20 +341,19 @@ static bool match_exception(struct list_head *exceptions, short type,
}
/**
* match_exception_partial - iterates the exception list trying to match a rule
* based on type, major, minor and access type. It is
* considered a match if an exception's range is
* found to contain *any* of the devices specified by
* provided parameters. This is used to make sure no
* extra access is being granted that is forbidden by
* any of the exception list.
* match_exception_partial - iterates the exception list trying to find a partial match
* @exceptions: list of exceptions
* @type: device type (DEV_BLOCK or DEV_CHAR)
* @major: device file major number, ~0 to match all
* @minor: device file minor number, ~0 to match all
* @access: permission mask (ACC_READ, ACC_WRITE, ACC_MKNOD)
*
* returns: true in case the provided range mat matches an exception completely
* It is considered a partial match if an exception's range is found to
* contain *any* of the devices specified by provided parameters. This is
* used to make sure no extra access is being granted that is forbidden by
* any of the exception list.
*
* Return: true in case the provided range mat matches an exception completely
*/
static bool match_exception_partial(struct list_head *exceptions, short type,
u32 major, u32 minor, short access)
@ -387,13 +386,13 @@ static bool match_exception_partial(struct list_head *exceptions, short type,
}
/**
* verify_new_ex - verifies if a new exception is part of what is allowed
* by a dev cgroup based on the default policy +
* exceptions. This is used to make sure a child cgroup
* won't have more privileges than its parent
* verify_new_ex - verifies if a new exception is allowed by parent cgroup's permissions
* @dev_cgroup: dev cgroup to be tested against
* @refex: new exception
* @behavior: behavior of the exception's dev_cgroup
*
* This is used to make sure a child cgroup won't have more privileges
* than its parent
*/
static bool verify_new_ex(struct dev_cgroup *dev_cgroup,
struct dev_exception_item *refex,