The gcc extension for binary constants that start with 0b is only
supported with gcc version 4.3 or higher.
The kernel can still be compiled with earlier versions of gcc, so have
checkpatch emit a warning for these constants.
Restructure checkpatch's constant finding code a bit to support finding
these binary constants.
Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Do not bleat a message on nominally acceptable CamelCase uses that are
separated by an _ like drm_core_has_MTRR.
CamelCase tests are also a bit noisy against certain types of code
acceptable to some kernel developers.
Make the test applicable only with --strict.
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>
The naming convention of options has changed one year ago.
The options have been recently updated in the cocci file
and in scripts/coccicheck. This patch also adds this information
in the documentation.
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
spatch has changed its option scheme.
E.g., --no_show_diff is now --no-show-diff
This patch updates:
- scripts/coccicheck
- Semantic patches under scripts/coccinelle/
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
When add a obj with dir to obj-y, like this
obj-y += dir/file.o
The $(obj)/dir not created, this patch fix this.
When try to add a file(which in a subdir) to my board's obj-y, the build
progress crashed.
For example, I use at91rm9200ek board, and in kernel dir run:
mkdir objtree
make O=objtree at91rm9200_defconfig
mkdir arch/arm/mach-at91/dir
touch arch/arm/mach-at91/dir/file.c
and edit arch/arm/mach-at91/dir/file.c to add some code.
then edit arch/arm/mach-at91/Makefile, change the following line:
obj-$(CONFIG_MACH_AT91RM9200EK) += board-rm9200ek.o
to:
obj-$(CONFIG_MACH_AT91RM9200EK) += board-rm9200ek.o dir/file.o
Now build it:
make O=objtree
Then the error appears:
...
CC arch/arm/mach-at91/board-rm9200dk.o
CC arch/arm/mach-at91/board-rm9200ek.o
CC arch/arm/mach-at91/dir/file.o
linux-2.6/arch/arm/mach-at91/dir/file.c:5:
fatal error: opening dependency file
arch/arm/mach-at91/dir/.file.o.d: No such file or directory
Check the objtree:
LANG=en ls objtree/arch/arm/mach-at91/dir
ls: cannot access objtree/arch/arm/mach-at91/dir: No such file or directory
It's apparently that the target dir not created for file.o
Check kbuild source code. It seems that kbuild create dirs for that in
$(obj-dirs). But if the dir need not to create a built-in.o, It should
never in $(obj-dirs).
So I make this patch to make sure It in $(obj-dirs)
this bug caused by commit
f5fb976520
Signed-off-by: 张忠山 <zzs0213@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Pull trivial module and virtio fixes from Rusty Russell.
Apparently these were meant for 3.10, but came in after the release.
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
modpost.c: Add .text.unlikely to TEXT_SECTIONS
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio: remove virtqueue_add_buf().
lguest: rename i386_head.S
virtio_blk: Add missing 'static' qualifiers
virtio: console: Add emergency writeonly register to config space
virtio_pci: better macro exported in uapi
Pull ARM64 updates from Catalin Marinas:
"Main features:
- KVM and Xen ports to AArch64
- Hugetlbfs and transparent huge pages support for arm64
- Applied Micro X-Gene Kconfig entry and dts file
- Cache flushing improvements
For arm64 huge pages support, there are x86 changes moving part of
arch/x86/mm/hugetlbpage.c into mm/hugetlb.c to be re-used by arm64"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (66 commits)
arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board
arm64: Add defines for APM ARMv8 implementation
arm64: Enable APM X-Gene SOC family in the defconfig
arm64: Add Kconfig option for APM X-Gene SOC family
arm64/Makefile: provide vdso_install target
ARM64: mm: THP support.
ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.
ARM64: mm: HugeTLB support.
ARM64: mm: Move PTE_PROT_NONE bit.
ARM64: mm: Make PAGE_NONE pages read only and no-execute.
ARM64: mm: Restore memblock limit when map_mem finished.
mm: thp: Correct the HPAGE_PMD_ORDER check.
x86: mm: Remove general hugetlb code from x86.
mm: hugetlb: Copy general hugetlb code from x86 to mm.
x86: mm: Remove x86 version of huge_pmd_share.
mm: hugetlb: Copy huge_pmd_share from x86 to mm.
arm64: KVM: document kernel object mappings in HYP
arm64: KVM: MAINTAINERS update
arm64: KVM: userspace API documentation
arm64: KVM: enable initialization of a 32bit vcpu
...
Created coccinelle script for reporting missing pci_free_consistent() calls.
Signed-off-by: Petr Strnad <strnape1@fel.cvut.cz>
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This adds parallelism by default to the "coccicheck" target using
spatch's "-max" and "-index" arguments.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
On some systems, __used is already defined in sys/cdefs.h and causes
a build warning:
scripts/mod/file2alias.c:85:1: warning: "__used" redefined
In file included from /usr/include/stdio.h:64,
from scripts/mod/modpost.h:1,
from scripts/mod/file2alias.c:13:
/usr/include/sys/cdefs.h:146:1: warning: this is the location of the previous definition
This adds an extra check before defining the __used macro to see if
the macro was already defined elsewhere.
Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
The parsing routines for Kconfig files use strtol(), but store and
render values as int. Switch types and formating to long to support a
wider range of values. For example, 0x80000000 wasn't representable.
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
For one, there's no point in the respective pieces to be rebuilt
unconditionally on each and every rebuild.
Second there's no need to invent a custom rule for generating the .s
file from the .c source - we can simply use the generic rule here.
And finally, $(obj) should be used to refer to files in the build tree
(rather than spelling out the subdirectory).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Delete all audit rules that were checking how the .cpuXYZ
related sections were inter-operating with other __init
like sections, now that __cpuinit is gone. Update the linker
script to not have any knowledge of .cpuinit sections.
[lds.h update courtesy of Ralf Baechle <ralf@linux-mips.org>]
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Currently, randconfig does randomise choice entries, unless KCONFIG_ALLCONFIG
is specified.
For example, given those two files (Thomas' test-case):
---8<--- Config.test.in
config OPTIONA
bool "Option A"
choice
prompt "This is a choice"
config CHOICE_OPTIONA
bool "Choice Option A"
config CHOICE_OPTIONB
bool "Choice Option B"
endchoice
config OPTIONB
bool "Option B"
---8<--- Config.test.in
---8<--- config.defaults
CONFIG_OPTIONA=y
---8<--- config.defaults
And running:
./scripts/kconfig/conf --randconfig Config.test.in
does properly randomise the two choice symbols (and the two booleans).
However, running:
KCONFIG_ALLCONFIG=config.defaults \
./scripts/kconfig/conf --randconfig Config.test.in
does *not* reandomise the two choice entries, and only CHOICE_OPTIONA
will ever be selected. (OPTIONA will always be set (expected), and
OPTIONB will be be properly randomised (expected).)
This patch defers setting that a choice has a value until a symbol for
that choice is indeed set, so that choices are properly randomised when
KCONFIG_ALLCONFIG is set, but not if a symbol for that choice is set.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
---
Changes v3 -> v4
- fix previous issue where some choices would not be set, which would
cause silentoldconfig to ask for them and was then breaking this
workflow (as reported by Arnd and Sedat):
KCONFIG_ALLCONFIG=foo.defconfig make randconfig
make silentoldconfig </dev/nullo
which I have tested (3h28min!) with:
touch defconfig
for(( i=0; i<10000; i++ )); do
KCONFIG_ALLCONFIG=$(pwd)/defconfig make randconfig >/dev/null 2>&1
make silentoldconfig </dev/null >/dev/null 2>&1 || break
done
which did not break at all.
- change done in v3 (below) is already fixed by a previous patch
Changes v2 -> v3
- ensure only one symbol is set in a choice
Changes v1 -> v2:
- further postpone setting that a choice has a value until
one is indeed set
- do not print symbols that are part of an invisible choice
Because of choice-in-a-choice constructs, it can happen that not all
symbols are assigned a value during randconfig, leading in rare cases
to this situation:
---8<--- choice-in-choice.in
choice
bool "A/B/C"
config A
bool "A"
config B
bool "B"
if B
choice
bool "E/F"
config E
bool "E"
config F
bool "F"
endchoice
endif # B
config C
bool "C"
endchoice
---8<---
$ ./scripts/kconfig/conf --randconfig choice-in-choice.in
[--SNIP--]
$ ./scripts/kconfig/conf --silentoldconfig choice-in-choice.in </dev/null
[--SNIP--]
A/B/C
1. A (A)
> 2. B (B)
3. C (C)
choice[1-3]: 2
E/F
> 1. E (E) (NEW)
2. F (F) (NEW)
choice[1-2]: aborted!
Console input/output is redirected. Run 'make oldconfig' to update
configuration.
Fix this by looping in randconfig for as long as some symbol gets assigned
a value.
Note: this was spotted with the USB EHCI Debug Device Gadget (USB_G_DBGP),
which uses this choice-in-a-choice construct, and exhibits this problem.
The example above is just a stripped-down minimalist test-case.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
When searching for symbols, return the symbols sorted by relevance.
Sorting is done as thus:
- first, symbols that match exactly
- then, alphabetical sort
Since the search can be a regexp, it is possible that more than one symbol
matches exactly. In this case, we can't decide which to sort first, so we
fallback to alphabeticall sort.
Explain this (new!) sorting heuristic in the documentation.
Reported-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Roland Eggner <edvx1@systemanalysen.net>
Cc: Wang YanQing <udknight@gmail.com>
--
Changes v1->v2:
- drop the previous, complex heuristic in favour of a simpler heuristic
that is both easier to understand, *and* to maintain (Jean)
- explain sorting heuristic in the doc (Jean)
The following issue can be reproduced with Linus' tree on
an x86_64 server.
>+ cp /home/user/rpmbuild-test/BUILDROOT/kernel-3.9.2.x86_64/boot/vmlinuz-3.9.2
>cp: missing destination file operand after
>/home/user/rpmbuild-test/BUILDROOT/kernel-3.9.2-1.x86_64/boot/vmlinuz-3.9.2'
>Try `cp --help' for more information.
>error: Bad exit status from /var/tmp/rpm-tmp.R4o0iI (%install)
Here are the commands to reproduce:
make defconfig
make rpm-pkg
Use the resulting src rpm to build as follows:
mkdir ~/rpmbuild-test
cd ~/rpmbuild-test
rpmbuild --rebuild --define "_topdir `pwd`" -vv ~/rpmbuild/SRPMS/kernel-3.10.0_rc1+-1.src.rpm
The issue is because the %install script uses $KBUILD_IMAGE and it hasn't
been set since it is only available in the kbuild system and not in the
%install script.
This patch adds a Makefile target to emit the image_name that can be used
and modifies the mkspec to use the dynamic name in %install.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
I just stumbled across another[0] issue when scripts/setlocalversion
operates on a write-protected source tree. Back then[0] the source tree
was on an read-only NFS share, so "test -w" was introduced before "git
update-index" was run.
This time, the source tree is on read/write NFS share, but the permissions
are world-readable and only a specific user (or root) can write.
Thus, "test -w ." returns "0" and then runs "git update-index",
producing the following message (on a dirty tree):
fatal: Unable to create '/usr/local/src/linux-git/.git/index.lock': Permission denied
While it says "fatal", compilation continues just fine.
However, I don't think a kernel compilation should alter the source
tree (or the .git directory) in any way and I don't see how removing
"git update-index" could do any harm. The Mercurial and SVN routines in
scripts/setlocalversion don't have any tree-modifying commands, AFAICS.
So, maybe the patch below would be acceptable.
[0] https://patchwork.kernel.org/patch/29718/
Signed-off-by: Christian Kujau <lists@nerdbynature.de>
Cc: Nico Schottelius <nico-linuxsetlocalversion@schottelius.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Currently, randconfig may set more than one symbol in a given choice.
Given this config file:
config A
bool "A"
if A
choice
bool "B/C/D"
config B
bool "B"
config C
bool "C"
config D
bool "D"
endchoice
endif # A
Then randconfig generates such .config files (case where A is not set is not
shown below for brevity), and where only the right-most .config is valid:
CONFIG_A=y CONFIG_A=y CONFIG_A=y
CONFIG_B=y CONFIG_B=y CONFIG_B=y
CONFIG_C=y # CONFIG_C is not set # CONFIG_C is not set
# CONFIG_D is not set CONFIG_D=y # CONFIG_D is not set
That is, in a randomised choice, the first symbol is always selected,
and at most one other symbol may be selected.
This is due to symbol randomised in a choice not being properly flagged
as having a value.
Fix that by flagging those symbols adequately: have a user-defined value,
and be not valid (to force recalculation of the symbol).
Note: if the choice is not conditional, then the randomisation is properly
done.
Reported-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
[yann.morin.1998@free.fr: independently re-done the same patch as Matthieu,
as pointed out by Sedat]
Cc: Arnaud Lacombe <lacombar@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
The script `config' prints its name in usage() function. It is currently
hard-coded to value `config'. However, the script may be reused under
a different name in contexts other than the Linux Kernel.
Replace the hard-coded value `config' by the name of the script at runtime.
Signed-off-by: Clement Chauplannaz <chauplac@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
