Do not test udelay() for a value less than 10usec when passed a variable
instead of a hard-coded number; there is no way for checkpatch to know the
value of the variable. As it is today, it will complain about variables
with alphanumeric characters plus '_', e.g. foo_bar, but not variables
with other characters, eg. foo->bar.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kcalloc is sometimes misused with the first and second arguments switched.
Same issue with kmalloc_array too.
Bleat if sizeof is the first argument
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>
I'm getting a ton of these:
WARNING: Avoid CamelCase: <PageTransHuge>
#140: FILE: mm/migrate.c:1576:
+ if (PageTransHuge(page) && page_count(page) != 3) {
So exclude anything which starts with "Page".
Tested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 74349bcced ("checkpatch: add support for floating point
constants") added an unnecessary match variable that caused tests that
used a $Constant or $LvalOrFunc to have one too many matches.
This causes problems with usleep_range, min/max and other extended
tests.
Avoid using match variables in $Float.
Avoid using match variables in $Assignment too.
Signed-off-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>
Even though the kernel doesn't support using floating point constants,
add a regex for them.
Support forms like: 0x123p1, 123e-1, 1.23, 1.5e23f
Signed-off-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>
Hexadecimal values are current found in 2 parts. A hex constant like
0x123456abcdef is found as 0 and then x123456abcdef and later coalesced.
Instead, reverse the order of the 2 searches in $Constant to find 0x
first, then 0 so that the entire hex constant is found all at once.
Signed-off-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>
switch default case is sometimes written as "default:;". This can cause
new cases added below the default to be defective.
Suggest adding a break; after empty default cases to avoid fallthrough
defects.
Fixed indentation in the other semicolon test above it.
Suggested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-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>
Blank lines around braces are not unnecessary. Emit a message on the use
of these blank lines only when using --strict.
int foo(int bar)
{
something or other....
}
is generally written in the kernel as:
int foo(int bar)
{
something or other...
}
Signed-off-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>
This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, it is being removed. This will discourage future addition of
CONFIG_EXPERIMENTAL while it is being phased out.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some comment styles in net and drivers/net are flagged inappropriately.
Avoid proclaiming inline comments like:
int a = b; /* some comment */
and block comments like:
/*********************
* some comment
********************/
are defective.
Tested with
$ cat drivers/net/t.c
/* foo */
/*
* foo
*/
/* foo
*/
/* foo
* bar */
/****************************
* some long block comment
***************************/
struct foo {
int bar; /* another test */
};
$
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: David Miller <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In an effort to get fewer checkpatch reviewer corrections, add a
networking specific style test for the preferred networking comment style.
/* The preferred style for block comments in
* drivers/net/... and net/... is like this
*/
These tests are only used in net/ and drivers/net/
Tested with:
$ cat drivers/net/t.c
/* foo */
/*
* foo
*/
/* foo
*/
/* foo
* bar */
$ ./scripts/checkpatch.pl -f drivers/net/t.c
WARNING: networking block comments don't use an empty /* line, use /* Comment...
#4: FILE: net/t.c:4:
+
+/*
WARNING: networking block comments put the trailing */ on a separate line
#12: FILE: net/t.c:12:
+ * bar */
total: 0 errors, 2 warnings, 12 lines checked
Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Allan, Bruce W" <bruce.w.allan@intel.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Direct conversion of printk(KERN_<LEVEL>... to pr_<level> isn't the
preferred conversion when a struct net_device or struct device is
available.
Hint that using netdev_<level> or dev_<level> is preferred to using
pr_<level>. Add netdev_dbg and dev_dbg variants too.
Miscellaneous whitespace neatening of a misplaced close brace.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
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>
