07 Jan, 2009
22 commits
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Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Clean up checkpatch using perlcritic.
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Cc: Ingo Molnar
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Ensure we do not trigger the complex macros checks on structure member
assignment, for example:#define foo .bar = 10
Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We're struggling all the time to figure out where the code came from that
oopsed.. The script below (a adaption from a script used by
kerneloops.org) can help developers quite a bit, at least for non-module
cases.It works and looks like this:
[/home/arjan/linux]$ dmesg | perl scripts/markup_oops.pl vmlinux
{
struct agp_memory *memory;memory = agp_allocate_memory(agp_bridge, pg_count, type);
c055c10f: 89 c2 mov %eax,%edx
if (memory == NULL)
c055c111: 74 19 je c055c12c
/* This function must only be called when current_controller != NULL */
static void agp_insert_into_pool(struct agp_memory * temp)
{
struct agp_memory *prev;prev = agp_fe.current_controller->pool;
c055c113: a1 ec dc 8f c0 mov 0xc08fdcec,%eax
*c055c118: 8b 40 10 mov 0x10(%eax),%eax
prev->prev = temp;
c055c11f: 89 50 04 mov %edx,0x4(%eax)
temp->next = prev;
c055c122: 89 02 mov %eax,(%edx)
}
agp_fe.current_controller->pool = temp;
c055c124: a1 ec dc 8f c0 mov 0xc08fdcec,%eax
c055c129: 89 50 10 mov %edx,0x10(%eax)
if (memory == NULL)
return NULL;agp_insert_into_pool(memory);
so in this case, we faulted while dereferencing agp_fe.current_controller
pointer, and we get to see exactly which function and line it affects...
Personally I find this very useful, and I can see value for having this
script in the kernel for more-than-just-me to use.Caveats:
* It only works for oopses not-in-modules
* It only works nicely for kernels compiled with CONFIG_DEBUG_INFO
* It's not very fast.
* It only works on x86Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Jan, 2009
10 commits
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The new check for asm/types.h and linux/types.h had
a few false positives.o We cannot let linux/types.h include linux/types.h
o The int-ll64.h and int-ll64.h define the types
and are included by linux/types.hHandle this by hardcoding the filenames in the headers_check script.
Signed-off-by: Sam Ravnborg
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If we see __[us](8|16|32|64) then we must include
If wee see include of then we recommendOriginal script from Mike but modified by me.
Cc: Mike Frysinger
Signed-off-by: Sam Ravnborg -
Noticed by Jike.
Reported-by: "Jike Song"
Signed-off-by: Sam Ravnborg -
Headers in userspace should be using the __xxx__ form of the asm, inline,
and volatile keywords. Since people like to revert these things without
realizing what's going on, have the headers install step autoconvert these
keywords.Signed-off-by: Mike Frysinger
Signed-off-by: Sam Ravnborg -
Signed-off-by: Sam Ravnborg
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Since prototypes with "extern" refer to kernel functions, they make no
sense in userspace, so reject them automatically.Signed-off-by: Mike Frysinger
[sam: made it into a warning]
Signed-off-by: Sam Ravnborg -
We now say where we detect the second source of a file,
and where we detect a recursively source of the same file.
This makes it easier to fix such errors.Signed-off-by: Sam Ravnborg
Cc: Roman Zippel -
No functional changes
Signed-off-by: Sam Ravnborg
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No functional changes - only comments.
Signed-off-by: Sam Ravnborg
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Added a few comments - no functional change.
Signed-off-by: Sam Ravnborg
29 Dec, 2008
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits)
allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
kbuild: strip generated symbols from *.ko
kbuild: simplify use of genksyms
kernel-doc: check for extra kernel-doc notations
kbuild: add headerdep used to detect inclusion cycles in header files
kbuild: fix string equality testing in tags.sh
kbuild: fix make tags/cscope
kbuild: fix make incompatibility
kbuild: remove TAR_IGNORE
setlocalversion: add git-svn support
setlocalversion: print correct subversion revision
scripts: improve the decodecode script
scripts/package: allow custom options to rpm
genksyms: allow to ignore symbol checksum changes
genksyms: track symbol checksum changes
tags and cscope support really belongs in a shell script
kconfig: fix options to check-lxdialog.sh
kbuild: gen_init_cpio expands shell variables in file names
remove bashisms from scripts/extract-ikconfig
kbuild: teach mkmakfile to be silent
...
20 Dec, 2008
4 commits
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Building upon parts of the module stripping patch, this patch
introduces similar stripping for vmlinux when CONFIG_KALLSYMS_ALL=y.
Using CONFIG_KALLSYMS_STRIP_GENERATED reduces the overhead of
CONFIG_KALLSYMS_ALL from 245k/310k to 65k/80k for the (i386/x86-64)
kernels I tested with.The patch also does away with the need to special case the kallsyms-
internal symbols by making them available even in the first linking
stage.While it is a generated file, the patch includes the changes to
scripts/genksyms/keywords.c_shipped, as I'm unsure what the procedure
here is.Signed-off-by: Jan Beulich
Signed-off-by: Sam Ravnborg -
This patch changes the way __crc_ symbols are being resolved from
using ld to do so to using the assembler, thus allowing these symbols
to be marked local (the linker creates then as global ones) and hence
allow stripping (for modules) or ignoring (for vmlinux) them. While at
this, also strip other generated symbols during module installation.One potentially debatable point is the handling of the flags passeed
to gcc when translating the intermediate assembly file into an object:
passing $(c_flags) unchanged doesn't work as gcc passes --gdwarf2 to
gas whenever is sees any -g* option, even for -g0, and despite the
fact that the compiler would have already produced all necessary debug
info in the C->assembly translation phase. I took the approach of just
filtering out all -g* options, but an alternative to such negative
filtering might be to have a positive filter which might, in the ideal
case allow just all the -Wa,* options to pass through.Signed-off-by: Jan Beulich
Signed-off-by: Sam Ravnborg -
Avoid duplicating long list of options in two places
Signed-off-by: Sam Ravnborg
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Add functionality to check for function parameters or structure (or
union/typedef/enum) field members that are described in kernel-doc but
are not part of the expected (declared) parameters or structure.
These generate warnings that are called "Excess" descriptions.Signed-off-by: Randy Dunlap
Signed-off-by: Sam Ravnborg
19 Dec, 2008
1 commit
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Signed-off-by: Vegard Nossum
Signed-off-by: Sam Ravnborg
14 Dec, 2008
2 commits
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Test of string equality in shells is =, not C-like ==.
Signed-off-by: Jiri Slaby
Signed-off-by: Sam Ravnborg -
- fix combining O=... and tags
- don't allow * expansion during sh function callsSigned-off-by: Jiri Slaby
[sam: use KBUILD_SRC to check if we use O=...]
Signed-off-by: Sam Ravnborg
