Re: [PATCH v4 03/16] block: sed-opal: unify space check in add_token_*

From: Jonas Rabenstein <redacted>

All add_token_* functions have a common set of conditions that have to
be checked. Use a common function for those checks in order to avoid
different behaviour as well as code duplication.

Co-authored-by: David Kozub [off-list ref]
Signed-off-by: Jonas Rabenstein <redacted>
Signed-off-by: David Kozub <redacted>
Reviewed-by: Scott Bauer <redacted>
---
 block/sed-opal.c | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/block/sed-opal.c b/block/sed-opal.c
index 5c123a5b4ab1..980705681806 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c

@@ -510,15 +510,29 @@ static int opal_discovery0(struct opal_dev *dev, void *data)
 	return opal_discovery0_end(dev);
 }
 
-static void add_token_u8(int *err, struct opal_dev *cmd, u8 tok)
+static size_t remaining_size(struct opal_dev *cmd)
+{
+	return IO_BUFFER_LENGTH - cmd->pos;
+}