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authorAlexey Dobriyan <adobriyan@gmail.com>2011-03-22 16:34:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-22 17:44:14 -0700
commit33ee3b2e2eb9b4b6c64dcf9ed66e2ac3124e748c (patch)
tree25d70c021189efa0bcbdf4e84b3ca97a6c147246 /scripts
parent8a5700cd6754a3c88d2ea2f1d7a56f671987fc25 (diff)
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 <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 58848e3e392c..dfd9b310a1cc 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2804,9 +2804,9 @@ sub process {
WARN("consider using a completion\n" . $herecurr);
}
-# recommend strict_strto* over simple_strto*
+# recommend kstrto* over simple_strto*
if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
- WARN("consider using strict_$1 in preference to simple_$1\n" . $herecurr);
+ WARN("consider using kstrto* in preference to simple_$1\n" . $herecurr);
}
# check for __initcall(), use device_initcall() explicitly please
if ($line =~ /^.\s*__initcall\s*\(/) {

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