fscrypt: remove unnecessary checks for NULL operations

The functions in fs/crypto/*.c are only called by filesystems configured
with encryption support.  Since the ->get_context(), ->set_context(),
and ->empty_dir() operations are always provided in that case (and must
be, otherwise there would be no way to get/set encryption policies, or
in the case of ->get_context() even access encrypted files at all),
there is no need to check for these operations being NULL and we can
remove these unneeded checks.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index 8cdfddce2b34..179e578b875b 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -183,9 +183,6 @@ int fscrypt_get_encryption_info(struct inode *inode)
         if (res)
                 return res;
 
-        if (!inode->i_sb->s_cop->get_context)
-                return -EOPNOTSUPP;
-
         res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
         if (res < 0) {
                 if (!fscrypt_dummy_context_enabled(inode) ||