|author||Alexey Dobriyan <firstname.lastname@example.org>||2011-03-22 16:34:40 -0700|
|committer||Linus Torvalds <email@example.com>||2011-03-22 17:44:14 -0700|
kstrto*: converting strings to integers done (hopefully) right
1. simple_strto*() do not contain overflow checks and crufty, libc way to indicate failure. 2. strict_strto*() also do not have overflow checks but the name and comments pretend they do. 3. Both families have only "long long" and "long" variants, but users want strtou8() 4. Both "simple" and "strict" prefixes are wrong: Simple doesn't exactly say what's so simple, strict should not exist because conversion should be strict by default. The solution is to use "k" prefix and add convertors for more types. Enter kstrtoull() kstrtoll() kstrtoul() kstrtol() kstrtouint() kstrtoint() kstrtou64() kstrtos64() kstrtou32() kstrtos32() kstrtou16() kstrtos16() kstrtou8() kstrtos8() Include runtime testsuite (somewhat incomplete) as well. strict_strto*() become deprecated, stubbed to kstrto*() and eventually will be removed altogether. Use kstrto*() in code today! Note: on some archs _kstrtoul() and _kstrtol() are left in tree, even if they'll be unused at runtime. This is temporarily solution, because I don't want to hardcode list of archs where these functions aren't needed. Current solution with sizeof() and __alignof__ at least always works. Signed-off-by: Alexey Dobriyan <firstname.lastname@example.org> Signed-off-by: Andrew Morton <email@example.com> Signed-off-by: Linus Torvalds <firstname.lastname@example.org>
Diffstat (limited to 'lib/Kconfig.debug')
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index bef5faab660f..df9234c5f9d1 100644
@@ -1250,3 +1250,6 @@ source "samples/Kconfig"
+ tristate "Test kstrto*() family of functions at runtime"