binfmt_misc: factor out the entry matching

search_binfmt_handler() open-codes both match types in one loop body
with the maskless magic comparison spelled as a manual xor loop that
is just memcmp() in disguise. Move the extension and magic checks
into helpers so the walk reads as policy - skip disabled entries,
match by entry type - and the maskless case actually uses memcmp().

No functional change.

Link: https://patch.msgid.link/20260710-work-binfmt_misc-locking-v3-13-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