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2011-01-27locking: Remove deprecated lock initializersThomas Gleixner
Last users are gone. Remove the left overs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-01-13checkpatch.pl: add "prefer __packed" checkJoe Perches
There's a __packed #define for __attribute__((packed)). Add a checkpatch to tell people about it. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13checkpatch: check for world-writeable sysfs/debugfs filesDave Jones
Exporting world writable sysfs/debugfs files is usually a bad thing. Warn about it. Signed-off-by: Dave Jones <davej@redhat.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>
2011-01-13checkpatch.pl: fix CAST detectionFlorian Mickler
We should only claim that something is a cast if we did not encouter a token before, that did set av_pending. This fixes the operator * in the line below to be detected as binary (vs unary). kmalloc(sizeof(struct alphatrack_ocmd) * true_size, GFP_KERNEL); Reported-by: Audun Hoem <audun.hoem@gmail.com> Signed-off-by: Florian Mickler <florian@mickler.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13scripts/checkpatch.pl: add check for multiple terminating semicolons and ↵Joe Perches
casts of vmalloc Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-30semaphore: Remove mutex emulationThomas Gleixner
Semaphores used as mutexes have been deprecated for years. Now that all users are either converted to real semaphores or to mutexes remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Christoph Hellwig <hch@infradead.org> LKML-Reference: <20100907125057.562399240@linutronix.de>
2010-10-26scripts/checkpatch.pl: add check for declaration of pci_device_idJoe Perches
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>
2010-10-26scripts/checkpatch.pl: add warnings for static char that could be static ↵Joe Perches
const char Add warnings for possible missing const uses of static char foo[] = "bar" that could be static const char foo[] = "bar" and static const char *foo[] = {"bar", "baz"} that could be static const char * const foo[] = {"bar", "baz"} Signed-off-by: Joe Perches <joe@perches.com> Cc: Mike Frysinger <vapier.adi@gmail.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>
2010-10-26checkpatch: version 0.31Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: statement/block context analyser should look at sanitised linesAndy Whitcroft
When tracking context to find a block or statement we need to use the sanitised lines, else perentheses '(' & ')' and braces '{' & '}' can throw the scanner out. Also fix up a couple of error outputs which include those sanitised lines incorrectly. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: handle EXPORT_SYMBOL for DEVICE_ATTR and similarAndy Whitcroft
Handly definitions similar to below. The definition macro spits out a symbol with a prefix. Add matching of any identifier prefix: DEVICE_ATTR(link_power_management_policy, S_IRUGO | S_IWUSR, ata_scsi_lpm_show, ata_scsi_lpm_put); EXPORT_SYMBOL_GPL(dev_attr_link_power_management_policy); Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: clean up structure definition macro handlineAndy Whitcroft
Handle definitions such as the following correctly, it is not a complex statement: #define PREALLOC(NAME, START, END, FLAGS) { \ .name = (NAME), \ .start = (START), \ .end = (END), \ .flags = (FLAGS) \ }, Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: update copyright datesAndy Whitcroft
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: Add additional attribute #definesJoe Perches
On Wed, 2010-08-11 at 12:35 -0400, Dave Jones wrote: > I just got this from a patch I merged.. > > ERROR: need consistent spacing around '*' (ctx:WxV) > #121: FILE: arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c:113: > +static struct pcc_cpu __percpu *pcc_cpu_info; > ^ > which doesn't seem right. Perhaps these need to be added to checkpatch. [apw@canonical.com: added tests] Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: check for incorrect permissionsRabin Vincent
Throw an error when a source file has been given execute permissions using the mode change line present in git diffs. Also alow the filename matching to use the "diff" line in addition to the "+++" line, since the mode change lines appear before any "+++" lines. [apw@canonical.com: simplified filename logic slightly, added tests] Cc: Andy Whitcroft <apw@canonical.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: ensure kconfig help checks only apply when we are adding helpAndy Whitcroft
When checking the length of the help we need to be sure we are seeing the whole story before erroring. Firstly we only want to check when adding the help in the first place. Second we need to be sure that we are seeing the end of the entry, nominally when there is no context below or that context shows the start of the next entry. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: simplify and consolidate "missing space after" checksAndy Whitcroft
Commonise the code for missing spaces after struct, union, and enum such that they share the same code. Ensure we cover all the common cases in each case. Check against the sanitised line to ensure we do not report on comments and strings. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: add check for space after struct, union, and enumAndy Whitcroft
Add spacing checks for struct, union, and enum definitions. Check the spacing after type and before the equals (=) and open brace ({). Based on a patch by Joe Perches. Cc: Joe Perches <joe@perches.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: returning errno typically should be negativeAndy Whitcroft
Add a (strict mode only) test to check for non-negative returns of what appear to be errno values as the majority case these should indeed be negative. Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: handle casts better fixing false categorisation of : as binaryAndy Whitcroft
The following incantation is triggering categorisation of its colon (:) as a binary form, which it is not: return foo ? (s8)bar : baz; Handle casts differently from types in the categoriser, allowing us to better track (s8)bar as a value and not a declaration. Reported-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: ensure we do not collapse bracketed sections into constantsAndy Whitcroft
When determining if a return () sequence is a function style bracketing we simplify the expression one bracket at a time replacing each with a constant. However this can trigger a false merge with expressions as below: return (foo)0; Prevent this false merging. Reported-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: suggest cleanpatch and cleanfile when appropriateAndy Whitcroft
When we hit types of whitespace which may be fixed by scripts/cleanpatch and scripts/cleanfile suggest their use in our report. Suggested-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: types may sit on a line on their ownAndy Whitcroft
When the following form is used we have a type which fully fills a line. This means that a type may end at the end of line as well as at the following identifier. int ** foo; Reported-by: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26checkpatch: fix regressions in "fix handling of leading spaces"Andy Whitcroft
The patch "checkpatch: fix handling of leading spaces" added checks for leading spaces on lines, but this introduces regressions. Firstly it does not correctly detect when we are in a comment. Secondly it does not allow for preprocessor command spacing. Finally it does not allow for label indentation which is required to be less than one tab. Fix these up: Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: fix extraneous EXPORT_SYMBOL* warningsPatrick Pannuto
These are caused by checkpatch incorrectly parsing its internal representation of a statement block for struct's (or anything else that is a statement block encapsulated in {}'s that also ends with a ';'). Fix this by properly parsing a statement block. An example: +struct dummy_type dummy = { + .foo = "baz", +}; +EXPORT_SYMBOL_GPL(dummy); + +static int dummy_func(void) +{ + return -EDUMMYCODE; +} +EXPORT_SYMBOL_GPL(dummy_func); WARNING: EXPORT_SYMBOL(foo); should immediately \ follow its function/variable #19: FILE: dummy.c:4: +EXPORT_SYMBOL_GPL(dummy); The above warning is issued when it should not be. Signed-off-by: Patrick Pannuto <ppannuto@codeaurora.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: warn about unexpectedly long msleep'sPatrick Pannuto
As explained in Documentation/timers/timers-howto.txt, msleep's of < 20ms may sleep for as long as 20ms. Caller's of msleep(1) or msleep(2), etc are likely not to expect this quirky behavior - warn them. Signed-off-by: Patrick Pannuto <ppannuto@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: prefer usleep_range over udelayPatrick Pannuto
When possible, sleeping is (usually) better than delaying; however, don't bother callers of udelay < 10us, as those cases are generally not worth the switch to usleep [akpm@linux-foundation.org: fix mismatched parentheses] Signed-off-by: Patrick Pannuto <ppannuto@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: add more exceptions to 80 char linesJoe Perches
Add new logging functions netdev_<level> and netif_<level>. Don't complain if the only thing on a line is a quoted string. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: change externals to globalsJoe Eloff
Make error message say 'ERROR: do not initialise globals to 0 or NULL' rather than 'ERROR: do not initialise externals to 0 or NULL'. Makes more sense in the context since there is an extern keyword in C and that is a global declaration within the scope of the current file. Signed-off-by: Joe Eloff <kagen101@gmail.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: fix handling of leading spacesRaffaele Recalcati
I've got a false positive when spaces are present at the beginning of a line. So I add this check, obviously excluding to check the lines in the middle of comments. For instance this code passes the checkpatch test: +struct davinci_mcbsp_data { + unsigned int fmt; + int clk_div; +}; + +static struct davinci_mcbsp_data mcbsp_data; Where, before the string "int clk_div", I have 4 spaces (\040 ascii character). With v2.6.34 scripts/checkpatch.pl script I get: scripts/checkpatch.pl 0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch total: 0 errors, 0 warnings, 201 lines checked 0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch has no obvious style problems and is ready for submission. That is not correct. Instead with the proposed patch I get: scripts/checkpatch.pl 0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch WARNING: please, no space for starting a line, excluding comments #63: FILE: sound/soc/davinci/davinci-i2s.c:165: + int clk_div;$ WARNING: please, no space for starting a line, excluding comments #95: FILE: sound/soc/davinci/davinci-i2s.c:406: + return 0;$ total: 0 errors, 2 warnings, 201 lines checked That is correct. Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it> Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09checkpatch: refactor 'allowed asm includes' and add memory.hWolfram Sang
Change the check suggesting replacement of asm-includes with linux-includes. Exceptions to this rule are easier to extend now. Add memory.h because ARM has a custom one. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25checkpatch: warn on declaration with storage class not at the beginningTobias Klauser
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25checkpatch: add check for too short Kconfig descriptionsAndi Kleen
I've seen various new Kconfigs with rather unhelpful one liner descriptions. Add a Kconfig warning for a minimum length of the Kconfig help section. Right now I arbitarily chose 4. The exact value can be debated. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-21lockdep: Add novalidate class for dev->mutex conversionPeter Zijlstra
The conversion of device->sem to device->mutex resulted in lockdep warnings. Create a novalidate class for now until the driver folks come up with separate classes. That way we have at least the basic mutex debugging coverage. Add a checkpatch error so the usage is reserved for device->mutex. [ tglx: checkpatch and compile fix for LOCKDEP=n ] Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-06checkpatch: warn on unnecessary spaces before quoted newlinesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06checkpatch.pl: warn if an adding line introduce spaces before tabs.Alberto Panizzo
Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06checkpatch.pl: extend list of expected-to-be-const structuresEmese Revfy
Based on Arjan's suggestion, extend the list of ops structures that should be const. Signed-off-by: Emese Revfy <re.emese@gmail.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06checkpatch.pl: add union and struct to the exceptions listStefani Seibold
Here is a small code snippet, which will be complained about by checkpatch.pl: #define __STRUCT_KFIFO_COMMON(recsize, ptrtype) \ union { \ struct { \ unsigned int in; \ unsigned int out; \ }; \ char rectype[recsize]; \ ptrtype *ptr; \ const ptrtype *ptr_const; \ }; This construct is legal and safe, so checkpatch.pl should accept this. It should be also true for struct defined in a macro. Add the `struct' and `union' keywords to the exceptions list of the checkpatch.pl script, to prevent error message "Macros with multiple statements should be enclosed in a do - while loop". Otherwise it is not possible to build a struct or union with a macro. Signed-off-by: Stefani Seibold <stefani@seibold.net> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06checkpatch: fix false positive on __initconstWolfram Sang
checkpatch falsely complained about '__initconst' because it thought the 'const' needed a space before. Fix this by changing the list of attributes: - add '__initconst' - force plain 'init' to contain a word-boundary at the end Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06checkpatch.pl: allow > 80 char lines for logging functions not just printkJoe Perches
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>
2010-03-06checkpatch: trivial fix for trailing statements checkHidetoshi Seto
In case if the statement and the conditional are in one line, the line appears in the report doubly. And items of this check have no blank line before the next item. This patch fixes these trivial problems, to improve readability of the report. [sample.c] > if (cond1 > && cond2 > && cond3) func_foo(); > > if (cond4) func_bar(); Before: > ERROR: trailing statements should be on next line > #1: FILE: sample.c:1: > +if (cond1 > [...] > + && cond3) func_foo(); > ERROR: trailing statements should be on next line > #5: FILE: sample.c:5: > +if (cond4) func_bar(); > +if (cond4) func_bar(); > total: 2 errors, 0 warnings, 5 lines checked After: > ERROR: trailing statements should be on next line > #1: FILE: sample.c:1: > +if (cond1 > [...] > + && cond3) func_foo(); > > ERROR: trailing statements should be on next line > #5: FILE: sample.c:5: > +if (cond4) func_bar(); > > total: 2 errors, 0 warnings, 5 lines checked Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.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>
2010-03-06scripts/checkpatch.pl: add WARN on sizeof(&foo)Joe Perches
sizeof(&foo) is frequently an error. Warn on its use. Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-12remove my email address from checkpatch.Dave Jones
Maybe this will stop people emailing me about it. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: version 0.30Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: fix false EXPORT_SYMBOL warningAndy Whitcroft
Ingo reported that the following lines triggered a false warning, static struct lock_class_key rcu_lock_key; struct lockdep_map rcu_lock_map = STATIC_LOCKDEP_MAP_INIT("rcu_read_lock", &rcu_lock_key); EXPORT_SYMBOL_GPL(rcu_lock_map); from kernel/rcutree.c , and the false warning looked like this, WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable +EXPORT_SYMBOL_GPL(rcu_lock_map); We actually should be checking the statement before the EXPORT_* for a mention of the exported object, and complain where it is not there. [akpm@linux-foundation.org: coding-style fixes] Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reported-by: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: fix __attribute__ matchingAndy Whitcroft
In the following code, union thread_union init_thread_union __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; There is a non-conforming declaration. It should really be like the following, union thread_union init_thread_union __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; However, checkpatch doesn't catch this right now because it doesn't correctly evaluate the "__attribute__". It is not at all clear that we care what preceeds an assignment style attribute when we find the open brace. Relax the test so we do not need to check the __attribute__. Reported-by: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: fix false errors due to macro concatenationAndy Whitcroft
The macro concatenation (##) sequence can cause false errors when checking macro's. Checkpatch doesn't currently know about the operator. For example this line, + entry = (struct ftrace_raw_##call *)raw_data; \ is correct but it produces the following error, ERROR: need consistent spacing around '*' (ctx:WxB) + entry = (struct ftrace_raw_##call *)raw_data;\ ^ The line above doesn't have any spacing problems, and if you remove the macro concatenation sequence checkpatch doesn't give any errors. Extend identifier handling to include ## concatenation within the definition of an identifier. Reported-by: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: update copyright datesAndy Whitcroft
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: correctly stop scanning at the bottom of a hunkAndy Whitcroft
We are allowing context scanning checks to apply against the first line of context outside at the end of the hunk. This can lead to false matches to patch names leading to various perl warnings. Correctly stop at the bottom of the hunk. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-29checkpatch: possible types -- prevent illegal modifiers being addedAndy Whitcroft
Prevent known non types being detected as modifiers. Ensure we do not look at any type which starts with a keyword. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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