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2009-01-06checkpatch: version: 0.26Andy 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>
2009-01-06checkpatch: fix the perlcritic errorsAndy Whitcroft
Clean up checkpatch using perlcritic. 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>
2009-01-06checkpatch: struct file_operations should normally be constAndy Whitcroft
In the general use case struct file_operations should be a const object. Check for and warn where it is not. As suggested by Steven and Ingo. Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@elte.hu> 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>
2009-01-06checkpatch: ensure we actually detect if assignments split across linesAndy Whitcroft
When checking for assignments within if conditionals we check the whole of the condition, but the match is performed using a line constrained regular expression. This means we can miss split conditionals or those on the second line. Allow the check to span lines. 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>
2009-01-06checkpatch: do not report nr_static as a static declarationAndy Whitcroft
Ensure we do not report identifiers containing the word static as static declarations. For example this should not be reported as an unecessary assignement of 0: long nr_static = 0; 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>
2009-01-06checkpatch: track #ifdef/#else/#endif when tracking blocksAndy Whitcroft
When picking up a complete statement or block for analysis we cannot simply track open/close/etc parenthesis we must take into account preprocessor section boundaries. 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>
2009-01-06checkpatch: fix continuation detection when handling spacing on operatorsAndy Whitcroft
We are miscategorising a continuation fragment following an operator which may lead to us thinking that there is a space after it when there is not. Fix this 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>
2009-01-06checkpatch: loosen spacing on typedef function checksAndy Whitcroft
Loosen spacing checks to correctly detect this valid use of a typedef: typedef struct rcu_data *(*get_data_func)(int); 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>
2009-01-06checkpatch: try to catch missing VMLINUX_SYMBOL() in vmlinux.lds.hMike Frysinger
Seems like every other release we have someone who updates vmlinux.lds.h and adds C-visible symbols without VMLINUX_SYMBOL() around them. So start checking the file and reject assignments which have plain symbols on either side. [apw@canonical.com: soften the check, add tests] Signed-off-by: Mike Frysinger <vapier@gentoo.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>
2009-01-06checkpatch: allow parentheses on return for comparisonsAndy Whitcroft
It seems to be a common idiom to include braces on conditionals in all contexts including return. Allow this exception to the return is not a function checks. Reported by Kay Sievers. Cc: Kay Sievers <kay.sievers@vrfy.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>
2009-01-06checkpatch: Add warning for p0-patchesWolfram Sang
Some people work internally with -p0-patches which has the danger that one forgets to convert them to -p1 before mainlining. Bitten myself and seen p0-patches in mailing lists occasionally, this patch adds a warning to checkpatch.pl in case a patch is -p0. If you really want, you can fool this check to generate false positives, this is why it just spits a warning. Making the check 100% proof is trickier than it looks, so let's start with a version which catches the cases of real use. [apw@canonical.com: update message language, handle null prefix, add tests] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> 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>
2009-01-06checkpatch: update copyrightsAndy 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>
2009-01-06checkpatch: version: 0.25Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: dissallow spaces between stars in pointer typesAndy Whitcroft
Disallow spaces within multiple pointer stars (*) in both casts and definitions. Both of these would now be reported: (char * *) char * *foo; Also now consistently detects and reports the attributes within these structures making the error report itself clearer. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: comment ends inside strings is most likely not an open commentAndy Whitcroft
When we are detecting whether a comment is open when we start a hunk we check for the first comment edge in the hunk and assume its inverse. However if the hunk contains something like below, then we will assume that a comment was open. Update this heuristic to see if the comment edge is obviously within double quotes and ignore it if so: foo(" */); Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: detect multiple bitfield declarationsAndy Whitcroft
Detect the colons (:) which make up secondary bitfield declarations and apply binary colon checks. For example the following is common idiom: int foo:1, bar:1; Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: __weak is an official attributeAndy Whitcroft
Add __weak as an official attribute. This tends to be used in a location where the automated attribute detector misses it. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: structure member assignments are not complexAndy Whitcroft
Ensure we do not trigger the complex macros checks on structure member assignment, for example: #define foo .bar = 10 Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: widen implied comment detection to allow multiple starsAndy Whitcroft
Some people use double star '**' as a comment continuation, and start comments with complete lines of stars. Widen the implied comment detection to pick these up. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: comment detection may miss an implied comment on the last hunkAndy Whitcroft
When detecting implied comments from leading stars we may incorrectly think we have detected an edge one way or the other when we have not if we drop off the end of the last hunk. Fix this up. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06checkpatch: add checks for in_atomic()Andy Whitcroft
in_atomic() is not for driver use so report any such use as an ERROR. Also in_atomic() is often used to determine if we may sleep, but it is not reliable in this use model therefore strongly discourage its use. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20Update email addresses.Dave Jones
Update assorted email addresses and related info to point to a single current, valid address. additionally - trivial CREDITS entry updates. (Not that this file means much any more) - remove arjans dead redhat.com address from powernow driver Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: version: 0.24Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: allow for comments either side of a brace on caseAndy Whitcroft
When specifying case we may have comments and/or braces at the end without actually having a 'statement'. Allow for these to occur in any order. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: suspect indent handle macro continuationAndy Whitcroft
When ignoring a macro in the middle of a conditional, we need to ignore the macro start and any continuation lines. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: trailing statements ensure we report the end of the lineAndy Whitcroft
When reporting some complex trailing statements we report only the starting line of the error, that tends to imply the shown line is in error and confuse the reader. As we do know where the actual error is report that line too with an appropriate gap marker where applicable. #ERROR: trailing statements should be on next line #1: FILE: Z202.c:1: + for (pbh = page_buffers(bh->b_page); pbh != bh; + pbh = pbh->b_this_page, key++); #ERROR: trailing statements should be on next line #4: FILE: Z202.c:4: + for (pbh = page_buffers(bh->b_page); [...] + pbh = pbh->b_this_page, key++); Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: DEFINE_ macros are real definitions for exportsAndy Whitcroft
When we want to confirm an export is directly after its definition we need to allow for DEFINE_ style macros. Add these to the execeptions. Refactor the exceptions. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: complex macros checks miss square bracketsAndy Whitcroft
We are missing 'simple' values which include square brackets. Refactor to ensure we handle nesting correctly and detect these simple forms. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: suspect code indent must stop at #else/#elifAndy Whitcroft
When we hit and #else or #elif we know we are meeting an alternative piece of code. All bets are off on indent if we did not see the open of the control so stop checking. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: pull out known acceptable typedefsAndy Whitcroft
Within the type checker we have a number of common kernel types which must be implemented as typedefs. Pull those out so that we can use the same expressions to trigger exclusions. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: accept any sized le/be typeAndy Whitcroft
We are likely going to have 24 bit types. Expand the type matcher to match any size. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: macros which define structure members are not complexAndy Whitcroft
We often see macros which define structure members, these are not complex and necessarily do not have braces or brackets. For example: #define _PLIST_HEAD_INIT(head) \ .prio_list = LIST_HEAD_INIT((head).prio_list), \ .node_list = LIST_HEAD_INIT((head).node_list) Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: handle do without braces if we have enough contextAndy Whitcroft
If we have sufficient context detect and handle do without braces ({). Else these incorrectly trigger a trailing statements error for the associated while. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: labels are not possible typesAndy Whitcroft
A label is not a candidate for a possible type. Exclude them. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: do is not a possible typeAndy Whitcroft
A do without braces '{' may trigger a false possible type 'do' and then this may be interpreted as an external definition of foo(): do foo(); while (bar); Add do to the type exclusions. Fix up tests so we can check for them. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: version: 0.23Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: ensure we only apply checks to the lines within hunksAndy Whitcroft
We should only apply source checks to lines within hunks. Checks which are anchored in the context may falsly trigger in the commentory. Ensure they only match within valid hunk lines. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: suspect indent count condition lines correctlyAndy Whitcroft
Correct calculation of the number of lines of condition where we have suspect indent. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: check line endings in text format filesAndy Whitcroft
Firmware may be included in the kernel as .ihex files. These are inherantly text, but not source. The line ending checks are applicable to these kinds of file, allow just these checks to apply to all files. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: handle comment/quote nesting correctlyAndy Whitcroft
Ensure that a close comment cannot incorrectly trigger in the middle of a string. Reported by Jaswinder Singh. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Cc: Jaswinder Singh <jaswinder@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: suppress errors triggered by short patchAndy Whitcroft
When the last hunk of a patch is short it will trigger errors from checkpatch: Use of uninitialized value in pattern match (m//) at /usr/local/bin/checkpatch.pl line 394. Use of uninitialized value in concatenation (.) or string at /usr/local/bin/checkpatch.pl line 397. Use of uninitialized value in pattern match (m//) Avoid touching beyond the last line. Reported by Julien Brunel. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Cc: Julien Brunel <brunel@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: case/default checks should only check changed linesAndy Whitcroft
We should only be checking changes lines for the trailing statement check on case/default statements. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: version: 0.22Andy Whitcroft
Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: perform indent checks on perlAndy Whitcroft
So that we eat our own dog food ensure the indent checks apply to perl too. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: report the correct lines for single statement blocksAndy Whitcroft
Report the correct lines for single statement blocks. Currently we are reporting the right number of lines, but not skipping the negative lines. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: %Lx tests should hand %% as a literalAndy Whitcroft
Ensure that we handle literal %'s correctly when adjacent to a %Lx. %Lx bad %%Lx good %%%Lx bad Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: suspect indent -- skip over preprocessor, label and blank linesAndy Whitcroft
We should skip over and check the lines which follow preprocessor statements, labels, and blank lines. These all have legitimate reasons to be indented differently. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: report the real first line of all suspect indentsAndy Whitcroft
We are currently only reporting syspect indents if the conditional is modified but the indent missmatch could be generated by the body changing, make sure we catch both. Also only report the first line of the body, and more importantly make sure we report the raw copy of the line. Finally report the indent levels to make it easier to understand what is wrong. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: report any absolute references to kernel source filesAndy Whitcroft
Absolute references to kernel source files are generally only useful locally to the originator of the patch. Check for any such references and report them. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16checkpatch: reduce warnings for #include of asm/foo.h to check from arch/bar.cAndy Whitcroft
It is much more likely that an architecture file will want to directly include asm header files. Reduce this WARNING to a CHECK when the referencing file is in the arch directory. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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