If coccicheck fails, it should return an error code distinct from zero
to signal about an internal problem. Current code instead of exiting with
the tool's error code returns the error code of 'echo "coccicheck failed"'
which is almost always equals to zero, thus failing the original intention
of alerting about a problem. This patch fixes the code.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Denis Efremov <efremov@linux.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Ensure that the cited expression is not a function call or an
assignment to reduce the chance of false positives.
Slightly modify the warning message to indicate another source
of false positves.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The host-progs has been kept as an alias of hostprogs-y for a long time
(at least since the beginning of Git era), with the clear prompt:
Usage of host-progs is deprecated. Please replace with hostprogs-y!
Enough time for the migration has passed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Kernel headers must be installed into $(objtree)/usr/include to avoid
the build failure of samples.
Commit ddea05fa14 ("kbuild: make samples depend on headers_install")
addressed this, but "samples/" is only used for the single target build.
"make samples/" properly installs kernel headers, but it does not work
for general building because a phony target "sample" (no trailing slash)
is used.
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: David Howells <dhowells@redhat.com>
Now that '%asm-generic' is added to no-dot-config-targets,
'make asm-generic' does not include the kernel configuration.
You can simply do 'make asm-generic' in the recursed top Makefile
without bothering syncconfig.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Richard Weinberger <richard@nod.at>
asm-generic and uapi-asm-generic do not depend on the kernel
configuration. In fact, uapi-asm-generic is the prerequisite of
headers_{install,check}, hence it should not require the .config file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Richard Weinberger <richard@nod.at>
Randy Dunlap reports UML occasionally fails to build with -j<N> and
O=<builddir> options.
make[1]: Entering directory '/home/rdunlap/mmotm-2018-0802-1529/UM64'
UPD include/generated/uapi/linux/version.h
WRAP arch/x86/include/generated/asm/dma-contiguous.h
WRAP arch/x86/include/generated/asm/export.h
WRAP arch/x86/include/generated/asm/early_ioremap.h
WRAP arch/x86/include/generated/asm/mcs_spinlock.h
WRAP arch/x86/include/generated/asm/mm-arch-hooks.h
WRAP arch/x86/include/generated/uapi/asm/bpf_perf_event.h
WRAP arch/x86/include/generated/uapi/asm/poll.h
GEN ./Makefile
make[2]: *** No rule to make target 'archheaders'. Stop.
arch/um/Makefile:119: recipe for target 'archheaders' failed
make[1]: *** [archheaders] Error 2
make[1]: *** Waiting for unfinished jobs....
UPD include/config/kernel.release
make[1]: *** wait: No child processes. Stop.
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
The cause of the problem is the use of '$(MAKE) KBUILD_SRC=',
which recurses to the top Makefile via the $(objtree)/Makefile
generated by scripts/mkmakefile.
When you run "make -j<N> O=<builddir> ARCH=um", Make can execute
'archheaders' and 'outputmakefile' targets simultaneously because
there is no dependency between them.
If it happens,
$(Q)$(MAKE) KBUILD_SRC= ARCH=$(HEADER_ARCH) archheaders
... tries to run $(objtree)/Makefile that is being updated.
The correct way for the recursion is
$(Q)$(MAKE) -f $(srctree)/Makefile ARCH=$(HEADER_ARCH) archheaders
..., which does not rely on the generated Makefile.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Richard Weinberger <richard@nod.at>
Use the print function. This maintains Python 2 support and should have
no functional change.
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Different generations of the SH architecture are not very compatible,
so there are/were separate Debian ports for SH3 and SH4.
Move the fallback out of the "case" statement, so that it will also be
used in case we find some SH architecture version without a known
mapping.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Debian currently only defines "riscv64", but it seems safe to assume
that any 32-bit port will now be called "riscv32", also matching
$UTS_MACHINE.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We currently label 64-bit kernel packages as sparc (32-bit), mostly
because it was officially supported while sparc64 was not. Now
neither is officially supported, so label these packages as sparc64.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
MIPS R6 is not fully backward-compatible, so Debian has separate
architecture names for userland built for R6. Label kernel
packages accordingly.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We currently label 64-bit little-endian kernel packages as
mipsel (32-bit little-endian), mostly it was officially supported
while mips64el (64-bit little-endian) was not. Now both are
officially supported, so label these packages as mips64el.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We currently label 64-bit big-endian kernel packages as
powerpc (32-bit), mostly because it was officially supported while
ppc64 (64-bit big-endian) was not. Now neither is officially
supported, so label these packages as ppc64.
Debian also has a powerpcspe (32-bit with SPE) architecture.
Label packages with a suitable configuration as powerpcspe.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We now have many repetitive greps over the kernel config. Refactor
them into functions.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
s390 now only supports 64-bit configurations.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We currently use dpkg --print-architecture, which reports the
architecture of the build machine. We can make a better guess
than this by asking dpkg-architecture what the host architecture,
i.e. the default architecture for building packages, is. This is
sensitive to environment variables such as CC and DEB_HOST_ARCH,
which should already be set in a cross-build environment.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
If KBUILD_DEBARCH is set then we will not use the result of
architecture detection, and we may also warn unnecessarily.
Move the check for KBUILD_DEBARCH further up to avoid this.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, filechk unconditionally opens the first prerequisite and
redirects it as the stdin of a filechk_* rule. Hence, every target
using $(call filechk,...) must list something as the first prerequisite
even if it is unneeded.
'< $<' is actually unneeded in most cases. Each rule can explicitly
adds it if necessary.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The filechk_offsets in arch/arm/mach-at91/Makefile is never
used because it is always overridden by the equivalent one in
scripts/Makefile.lib
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Users of if_changed could easily feel invited to use it to divide a
recipe into parts like:
a: prereq FORCE
$(call if_changed,do_a)
$(call if_changed,do_b)
But this is problematic, because if_changed should not be used more
than once per target: in the above example, if_changed stores the
command-line of the given command in .a.cmd and when a is up-to-date
with respect to prereq, the file .a.cmd contains the command-line for
the last command executed, i.e. do_b.
When the recipe is then executed again, without any change of
prerequisites, the command-line check for do_a will fail, do_a will be
executed and stored in .a.cmd. The next check, however, will still see
the old content (the file isn't re-read) and if_changed will skip
do_b, because the command-line test will not recognize a change. On
the next execution of the recipe the roles will flip: do_a is OK but
do_b not and it will be executed. And so on...
Signed-off-by: Dirk Gouders <dirk@gouders.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Make 'make tar-pkg' work on arm64.
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
ARCH=vax isn't in mainline; it can be added back if/when it shows up.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Put $(LDFLAGS_$(@F)) into ld_flags so that $(LDFLAGS_pcap.o) and
$(LDFLAGS_vde.o) in arch/um/drivers/Makefile are absorbed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
$(LDFLAGS) $(ldflags-y) is equivalent to $(ld_flags).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Since commit ce99d0bf31 ("kbuild: clear LDFLAGS in the top Makefile"),
the top-level Makefile caters to this.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
This is already exported by the top-level Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Now that we have the rename in place, reuse the HOST*FLAGS options as
something that can be set from the command line and included with the
rest of the flags.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In preparation for enabling command line LDLIBS, re-name HOST_LOADLIBES
to KBUILD_HOSTLDLIBS as the internal use only flags. Also rename
existing usage to HOSTLDLIBS for consistency. This should not have any
visible effects.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In preparation for enabling command line LDFLAGS, re-name HOSTLDFLAGS
to KBUILD_HOSTLDFLAGS as the internal use only flags. This should not
have any visible effects.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In preparation for enabling command line CXXFLAGS, re-name HOSTCXXFLAGS
to KBUILD_HOSTCXXFLAGS as the internal use only flags. This should not
have any visible effects.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In preparation for enabling command line CFLAGS, re-name HOSTCFLAGS to
KBUILD_HOSTCFLAGS as the internal use only flags. This should not have
any visible effects.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The vDSO needs to have a unique build id in a similar manner
to the kernel and modules. Use the build salt macro.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The vDSO needs to have a unique build id in a similar manner
to the kernel and modules. Use the build salt macro.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The vDSO needs to have a unique build id in a similar manner
to the kernel and modules. Use the build salt macro.
Acked-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In Fedora, the debug information is packaged separately (foo-debuginfo) and
can be installed separately. There's been a long standing issue where only
one version of a debuginfo info package can be installed at a time. There's
been an effort for Fedora for parallel debuginfo to rectify this problem.
Part of the requirement to allow parallel debuginfo to work is that build ids
are unique between builds. The existing upstream rpm implementation ensures
this by re-calculating the build-id using the version and release as a
seed. This doesn't work 100% for the kernel because of the vDSO which is
its own binary and doesn't get updated when embedded.
Fix this by adding some data in an ELF note for both the kernel and modules.
The data is controlled via a Kconfig option so distributions can set it
to an appropriate value to ensure uniqueness between builds.
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Verify that 'depmod' ($DEPMOD) is installed.
This is a partial revert of commit 620c231c7a
("kbuild: do not check for ancient modutils tools").
Also update Documentation/process/changes.rst to refer to
kmod instead of module-init-tools.
Fixes kernel bugzilla #198965:
https://bugzilla.kernel.org/show_bug.cgi?id=198965
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Lucas De Marchi <lucas.de.marchi@gmail.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Chih-Wei Huang <cwhuang@linux.org.tw>
Cc: stable@vger.kernel.org # any kernel since 2012
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 8370edea81 ("bin2c: move bin2c in scripts/basic") moved bin2c
to the scripts/basic/ directory, incorrectly stating "Kexec wants to
use bin2c and it wants to use it really early in the build process.
See arch/x86/purgatory/ code in later patches."
Commit bdab125c93 ("Revert "kexec/purgatory: Add clean-up for
purgatory directory"") and commit d6605b6bbe ("x86/build: Remove
unnecessary preparation for purgatory") removed the redundant
purgatory build magic entirely.
That means that the move of bin2c was unnecessary in the first place.
fixdep is the only host program that deserves to sit in the
scripts/basic/ directory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
atomic_as_refcounter.cocci script allows detecting
cases when refcount_t type and API should be used
instead of atomic_t.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- A fix for OMAP5 and DRA7 to make the branch predictor hardening
settings take proper effect on secondary cores
- Disable USB OTG on am3517 since current driver isn't working
- Fix thermal sensor register settings on Armada 38x
- Fix suspend/resume IRQs on pxa3xx
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
- A fix for OMAP5 and DRA7 to make the branch predictor hardening
settings take proper effect on secondary cores
- Disable USB OTG on am3517 since current driver isn't working
- Fix thermal sensor register settings on Armada 38x
- Fix suspend/resume IRQs on pxa3xx
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: am3517.dtsi: Disable reference to OMAP3 OTG controller
ARM: DRA7/OMAP5: Enable ACTLR[0] (Enable invalidates of BTB) for secondary cores
ARM: pxa: irq: fix handling of ICMR registers in suspend/resume
ARM: dts: armada-38x: use the new thermal binding
- an important core fix for RTCs using the core offsetting only one driver is
affected.
- a fix for the error path of mrst
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Merge tag 'rtc-4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC fixes from Alexandre Belloni:
"Two fixes for 4.18:
- an important core fix for RTCs using the core offsetting only one
driver is affected
- a fix for the error path of mrst"
* tag 'rtc-4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: fix alarm read and set offset
rtc: mrst: fix error code in probe()
Turns out the recent patches for ARM branch predictor hardening are
not working on omap5 and dra7 as planned because the secondary CPU
is parked to the bootrom code. We can't configure it in the bootloader.
So we must enable invalidates of BTB for omap5 and dra7 secondary
core in the kernel.
And there's a fix for reserved register access for am3517. The
usb otg module on am3517 is not the same as for other omap3.
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Merge tag 'omap-for-v4.18/fixes-rc4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Two omap fixes for v4.18-rc cycle
Turns out the recent patches for ARM branch predictor hardening are
not working on omap5 and dra7 as planned because the secondary CPU
is parked to the bootrom code. We can't configure it in the bootloader.
So we must enable invalidates of BTB for omap5 and dra7 secondary
core in the kernel.
And there's a fix for reserved register access for am3517. The
usb otg module on am3517 is not the same as for other omap3.
* tag 'omap-for-v4.18/fixes-rc4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am3517.dtsi: Disable reference to OMAP3 OTG controller
ARM: DRA7/OMAP5: Enable ACTLR[0] (Enable invalidates of BTB) for secondary cores
Signed-off-by: Olof Johansson <olof@lixom.net>
Use the new thermal binding on Armada 38x allowing to use a driver fix
which is already part of the kernel.
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Merge tag 'mvebu-fixes-4.18-1' of git://git.infradead.org/linux-mvebu into fixes
mvebu fixes for 4.18 (part 1)
Use the new thermal binding on Armada 38x allowing to use a driver fix
which is already part of the kernel.
* tag 'mvebu-fixes-4.18-1' of git://git.infradead.org/linux-mvebu:
ARM: dts: armada-38x: use the new thermal binding
Signed-off-by: Olof Johansson <olof@lixom.net>
This is a fix for suspending all pxa3xx platforms, where high
number interrupts are not reenabled.
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Merge tag 'pxa-fixes-4.18' of https://github.com/rjarzmik/linux into fixes
This is the fixes set for v4.18 cycle.
This is a fix for suspending all pxa3xx platforms, where high
number interrupts are not reenabled.
* tag 'pxa-fixes-4.18' of https://github.com/rjarzmik/linux:
ARM: pxa: irq: fix handling of ICMR registers in suspend/resume
Signed-off-by: Olof Johansson <olof@lixom.net>
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Merge tag 'for-linus-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Two related fixes for a boot failure of Xen PV guests"
* tag 'for-linus-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: setup pv irq ops vector earlier
xen: remove global bit from __default_kernel_pte_mask for pv guests
Merge misc fixes from Andrew Morton:
"11 fixes"
* emailed patches form Andrew Morton <akpm@linux-foundation.org>:
reiserfs: fix buffer overflow with long warning messages
checkpatch: fix duplicate invalid vsprintf pointer extension '%p<foo>' messages
mm: do not bug_on on incorrect length in __mm_populate()
mm/memblock.c: do not complain about top-down allocations for !MEMORY_HOTREMOVE
fs, elf: make sure to page align bss in load_elf_library
x86/purgatory: add missing FORCE to Makefile target
net/9p/client.c: put refcount of trans_mod in error case in parse_opts()
mm: allow arch to supply p??_free_tlb functions
autofs: fix slab out of bounds read in getname_kernel()
fs/proc/task_mmu.c: fix Locked field in /proc/pid/smaps*
mm: do not drop unused pages when userfaultd is running
Denis Efremov