The git commit message can be confusing,
Try to clarify the message a bit to reduce the confusion when emitted.
Show the correct form using
Please use git commit description style 'commit <12+ chars of sha1> ("<title line>")'
and if the git commit sha1 is unique, show
the right sha1 to use with the actual title
Signed-off-by: Joe Perches <joe@perches.com>
Original-patch-by: Prarit Bhargava <prarit@redhat.com>
Tested-by: Chris Rorvick <chris@rorvick.com>
Acked-by: Prarit Bhargava <prarit@redhat.com>
Cc: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KERN_<LEVEL> is never redundant with printk_ratelimited or printk_once.
(Except perhaps in the sense that you could use e.g. pr_err_ratelimited
or pr_err_once, but that would apply to printk as well).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Whitcroft <apw@canonical.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Just like "__cold", ignore the __pure gcc attribute macro so pointer
warnings aren't generated for uses like "int * __pure fn(...)"
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add world writable permissions tests for the various functions like
debugfs etc...
Add $String type for $FuncArg so that string constants are matched.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since commit fe7c36c7bd ("Makefile: Build with -Werror=date-time if
the compiler supports it"), use of __DATE__, __TIME__, and __TIMESTAMP__
has not been allowed.
As this test is gcc version specific (> 4.9), it hasn't prevented a few
new uses from creeping into the kernel sources.
Make checkpatch complain about them.
Signed-off-by: Joe Perches <joe@perches.com>
Original-patch-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add --fix option to coalesce string fragments.
This does not coalesce string fragments that have newline terminations or
are otherwise exempted.
Other miscellanea:
o move all the string tests together.
o fix get_quoted_string function for tab characters
o fix concatination typo
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Emit a warning when single line string coalescing occurs.
Code that uses compiler string concatenation on a single line like:
printk("foo" "bar");
is generally better to read concatenated like:
printk("foobar");
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Checkpatch flags CamelCase identifiers in strict mode, but it has a
feature to ignore parts with only two characters to allow for SI units
like mV or uA. Unfortunately, not all SI units fit in two characters, and
not all are lower case followed by upper case.
This patch adds hardcoded detection for frequency and 1024-based size
units (Hz/KHz/MHz/GHz/THz and KiB/MiB/GiB/TiB), since allowing any three
character combinations might be too lenient. The list can later be
expanded as needed.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter Hurley wrote:
The use of older function ptr calling style, (*fn)(), makes static
analysis more error-prone; replace with modern fn() style.
So make checkpatch emit a --strict test for that condition.
Update the unnecessary parentheses test for dereferencing
objects at the same time and create a $fix mechanism too.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When files are being added/moved/deleted and a patch contains an update to
the MAINTAINERS file, assume it's to update the MAINTAINERS file correctly
and do not emit the "does MAINTAINERS need updating?" message.
Reported by many people.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shift has a higher precedence that mask so warn when a mask then shift
operation is done without parentheses around the mask.
This test works well for a right shift, but the left shift is pretty
commonly done correctly so only warn on the right shift.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Using weak declarations can have unintended link defects. The __weak on
the declaration causes non-weak definitions to become weak.
Emit an error on its use.
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add an exception to the return before else warning when the line
following it is also a return like:
if (foo)
return bar;
else
return baz;
This form of a test then return is at least as readable as
if (foo)
return bar;
return baz;
so don't emit a warning on the first form.
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Elshad Mustafayev <elshadimo@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Check for misspellings, based on Debian's lintian list. Several false
positives were removed, and several additional words added that were
common in the kernel:
backword backwords
invalide valide
recieves
singed unsinged
While going back and fixing existing spelling mistakes isn't a high
priority, it'd be nice to try to catch them before they hit the tree.
In the 13830 commits between 3.15 and 3.16, the script would have noticed
560 spelling mistakes. The top 25 are shown here:
$ git log --pretty=oneline v3.15..v3.16 | wc -l
13830
$ git log --format='%H' v3.15..v3.16 | \
while read commit ; do \
echo "commit $commit" ; \
git log --format=email --stat -p -1 $commit | \
./scripts/checkpatch.pl --types=typo_spelling --no-summary - ; \
done | tee spell_v3.15..v3.16.txt | grep "may be misspelled" | \
awk '{print $2}' | tr A-Z a-z | sort | uniq -c | sort -rn
21 'seperate'
17 'endianess'
15 'sucess'
13 'noticable'
11 'occured'
11 'accomodate'
10 'interrup'
9 'prefered'
8 'unecessary'
8 'explicitely'
7 'supress'
7 'overriden'
7 'immediatly'
7 'funtion'
7 'defult'
7 'childs'
6 'succesful'
6 'splitted'
6 'specifc'
6 'reseting'
6 'recieve'
6 'changable'
5 'tmis'
5 'singed'
5 'preceeding'
Thanks to Joe Perches for rewrites, suggestions, additional misspelling
entries, and testing.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Macros with flow control statements (goto and return) are not very nice to
read as any flow movement is unexpected.
Try to highlight them and emit a warning on their definition.
Avoid warning on macros that use argument concatenation as those macros
commonly create another function where the concatenation is used in the
function name definition like:
#define FOO_FUNC(name, rtn_type) \
rtn_type func##name(arg1, ...) \
{ \
rtn_type rtn; \
[code...] \
return rtn; \
}
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
