binfmt_misc: use a flexible array member for the register string

create_entry() allocates the entry and the register string it parses
into in one chunk and finds the string part again through manual
pointer arithmetic behind a cast. Make the layout explicit with a
flexible array member and struct_size(), and give the magic pad of
trailing delimiters a name while at it.

No functional change.

Link: https://patch.msgid.link/20260710-work-binfmt_misc-locking-v3-19-a162f7cb58d6@kernel.org
Reviewed-by: Jori Koolstra <jkoolstra@xs4all.nl>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

0 files changed, 0 insertions, 0 deletions