From a08c5356a3aaf638c41897ae4169de18db89595e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 26 May 2012 11:06:38 -0700 Subject: lib: add generic strnlen_user() function This adds a new generic optimized strnlen_user() function that uses the infrastructure to portably do efficient string handling. In many ways, strnlen is much simpler than strncpy, and in particular we can always pre-align the words we load from memory. That means that all the worries about alignment etc are a non-issue, so this one can easily be used on any architecture. You obviously do have to do the appropriate word-at-a-time.h macros. Signed-off-by: Linus Torvalds --- lib/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'lib/Kconfig') diff --git a/lib/Kconfig b/lib/Kconfig index 98230ac3db29..64ddc44d0b81 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -19,6 +19,9 @@ config RATIONAL config GENERIC_STRNCPY_FROM_USER bool +config GENERIC_STRNLEN_USER + bool + config GENERIC_FIND_FIRST_BIT bool -- cgit v1.2.2