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fscrypt: split fscrypt_dummy_context_enabled() into supp/notsupp versions

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fscrypt_dummy_context_enabled() accesses ->s_cop, which now is only set
when the filesystem is built with encryption support.  This didn't
actually matter because no filesystems called it.  However, it will
start being used soon, so fix it by moving it from fscrypt.h to
fscrypt_supp.h and stubbing it out in fscrypt_notsupp.h.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Eric Biggers 2018-01-05 10:44:56 -08:00 • committed by Theodore Ts'o
parent 542060c02c
commit 1493651b53
3 changed files with 11 additions and 8 deletions
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8
include/linux/fscrypt.h
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@ -75,14 +75,6 @@ struct fscrypt_operations {
/* Maximum value for the third parameter of fscrypt_operations.set_context(). */
#define FSCRYPT_SET_CONTEXT_MAX_SIZE 28
static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
{
if (inode->i_sb->s_cop->dummy_context &&
inode->i_sb->s_cop->dummy_context(inode))
return true;
return false;
}
static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
u32 filenames_mode)
{