checkpatch: check for nested (un)?likely() calls

IS_ERR(), IS_ERR_OR_NULL(), IS_ERR_VALUE() and WARN*() already contain
unlikely() optimization internally.  Thus, there is no point in calling
these functions and defines under likely()/unlikely().

This check is based on the coccinelle rule developed by Enrico Weigelt
https://lore.kernel.org/lkml/[email protected]/

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Denis Efremov <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: Anton Altaparmakov <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: Boris Pismenny <[email protected]>
Cc: Darrick J. Wong <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Denis Efremov <[email protected]>
Cc: Dennis Dalessandro <[email protected]>
Cc: Inaky Perez-Gonzalez <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Leon Romanovsky <[email protected]>
Cc: Mike Marciniszyn <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: Saeed Mahameed <[email protected]>
Cc: Sean Paul <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions