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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>
2008-10-16checkpatch: include/asm checks should be anchoredAndy Whitcroft
It is possible to have other include/asm paths within the tree which are not subject to the do not edit checks. Ignore those. 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: fix up comment checks search to scan the entire blockAndy Whitcroft
We are not counting the lines in the block correctly which causes the comment scan to stop prematurly and thus miss comments which end at the end of the block. 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>
2008-10-16checkpatch: complex macros -- fix up extension handlingAndy Whitcroft
Only pull in new extension lines where the current contents ends with a \. 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: ____cacheline_aligned et al are modifiersAndy Whitcroft
Add the cacheline alignment modifiers to the attribute lists. 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: add tests for the attribute matcherAndy Whitcroft
Add support for direct testing of the attribute matcher, add basic tests for 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>
2008-10-16checkpatch: switch indent allow plain returnAndy Whitcroft
It is a common and sane idiom to allow a single return on the end of a case statement: switch (...) { case foo: return bar; } Add an exception for this. 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: conditional indent -- labels have different indent rulesAndy Whitcroft
Labels have different indent rules and must be ignored when checking the conditional indent levels. Also correct identify labels in single statement conditionals. 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: values: double ampersand may be unaryAndy Whitcroft
It is possible to use double ampersand (&&) in unary context where it means the address of a goto label. Handle spacing for 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>
2008-10-16checkpatch: square brackets -- exemption for array slices in bracesAndy Whitcroft
It is wholy reasonable to have square brackets representing array slices in braces on the same line. These should be spaced. 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>
2008-07-24checkpatch: version 0.21Andy 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>
2008-07-24checkpatch: types cannot start mid word for pointer testsAndy Whitcroft
When checking spacing for pointer checks the type cannot start in the middle of a word, ie. this is not 'int * bar': x = fooint * bar; 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>
2008-07-24checkpatch: complex macros need to ignore commentsAndy Whitcroft
Ensure we ignore comments in complex macro detection else we incorrectly report this: #define PFM_GROUP_PERM_ANY -1 /* any user/group */ 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>
2008-07-24checkpatch: variants -- move the main unary/binary operators to use variantsAndy Whitcroft
Now that we have a variants system, move to using that to carry the unary/binary designation for +, -, &, and *. 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>
2008-07-24checkpatch: add checks for question mark and colon spacingAndy Whitcroft
Add checks for the question mark colon operator spacing, and also check the other uses of colon. Colon means a number of things: - it introduces the else part of the ?: operator, - it terminates a goto label, - it terminates the case value, - it separates the identifier from the bit size on bit fields, and - it is used to introduce option types in asm(). 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>
2008-07-24checkpatch: possible modifiers -- handle multiple modifiers and trailingAndy Whitcroft
Add support for multiple modifiers such as: int __one __two foo; Also handle trailing known modifiers when defecting modifiers: int __one foo __read_mostly; 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>
2008-07-24checkpatch: possible types -- known modifiers cannot be typesAndy Whitcroft
Ensure we do not inadvertantly load known modifiers up as possible types. 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>
2008-07-24checkpatch: handle return types of pointers to functionsAndy Whitcroft
Make sure we correctly mark the return type of the pointer to a function declaration. const void *(*sb_tag)(struct sysfs_tag_info *info); 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>
2008-07-24checkpatch: macro complexity checks are meaningless in linker scriptsAndy Whitcroft
Exclude vmlinux.lds.h from the macro complexity checks. They will never apply sanely here. 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>
2008-07-24checkpatch: possible modifiers are not being correctly matchedAndy Whitcroft
Although we are finding the added modifier in the declaration below we are not correctly matching it as a type. Fix the declaration. static void __ref *vmem_alloc_pages(unsigned int 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>
2008-07-24checkpatch: improve type matcher debugAndy Whitcroft
Improve type matcher debug so we can see what it does match. As part of this move us to to using the common debug framework. 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>
2008-07-24checkpatch: allow for type modifiers on multiple declarationsAndy Whitcroft
Allow for type modifiers mid declaration on multiple declarations: struct mxser_mstatus ms, __user *msu = argp; Reported by Jiri Slaby. 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>
2008-07-24checkpatch: correct spelling in kfree checksWolfram Sang
Correct spelling in the kfree reports. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> 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>
2008-07-24checkpatch: usb_free_urb() can take NULLGreg Kroah-Hartman
usb_free_urb() can take a NULL, so let's check and warn about that. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 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>
2008-07-24checkpatch: condition/loop indent checksAndy Whitcroft
Check to see if the block/statement which a condition or loop introduces is indented correctly. 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>
2008-07-24checkpatch: toughen trailing if statement checks and extend them to while ↵Andy Whitcroft
and for Extend the trailing statement checks to report a trailing semi-colon ';' as we really want it on the next line and indented so it is really really obvious. Also extend the tests to include while and for. 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>
2008-07-24checkpatch: check spacing for square bracketsAndy Whitcroft
Check on the spacing before square brackets. We should only allow spaces there if this is part of a type definition or an initialialiser. 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>
2008-07-24checkpatch: switch -- report trailing statements on case and defaultAndy Whitcroft
Report trailing statements on case and default 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>
2008-07-24checkpatch: allow printk strings to exceed 80 characters to maintain their ↵Andy Whitcroft
searchability Allow printk strings to break the 80 character width limits, thus keeping them complete and searchable. 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>
2008-07-24checkpatch: trailing statement indent: fix end of statement locationAndy Whitcroft
Fix end of statement location. Where the last line of the statement is replaced we are miss reporting the newly added replacement an incorrectly indented trailing statement for the negative context. We are also incorrectly reporting negative statements generally. 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>
2008-07-24checkpatch: macros: fix statement counting block end detectionAndy Whitcroft
We are incorrectly counting the lines in a block while accumulating the trailing lines in a macro statement, leading to false positives. Fix end of block handling and general counting for negative context 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>
2008-07-24checkpatch: types: unary -- goto introduces unary contextAndy Whitcroft
When we see a goto we enter unary context. For example: goto *h; 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>
2008-07-24checkpatch: comment detection: ignore macro continuation when detecting ↵Andy Whitcroft
associated comments When looking for an associated comment they may be suffixed by a macro continuation. Ignore this. 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>
2008-07-24checkpatch: possible types: __asm__ is never a typeAndy Whitcroft
We are false matching __asm__ as a type, and then tripping the external function checks. Squash. 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>
2008-07-24checkpatch: add a checkpatch warning for new uses of __initcall().Michael Ellerman
[apw@shadowen.org: generalise pattern and add tests] Signed-off-by: Michael Ellerman <michael@ellerman.id.au> 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>
2008-07-24checkpatch: types: some types may also be identifiersAndy Whitcroft
Some types such as typedefs may overlap real identifiers. Be more targetted about when a type can really exist. Where it cannot let it be an identifier. This prevents false reporting of the minus '-' in unary context in the following: foo[bar->bool - 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>
2008-07-24checkpatch: return is not a function -- parentheses for casts are ok tooAndy Whitcroft
Casts require parentheses so it is possible to have something like this: return (int)(*a); This miss trips the complexity function. Ensure that the two separate parenthesised sections are not coelesced. 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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