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2012-12-19Merge tag 'modules-next-for-linus' of ↵Linus Torvalds1-0/+32
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "Nothing all that exciting; a new module-from-fd syscall for those who want to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Fix kbuild output when using default extra_certificates MODSIGN: Avoid using .incbin in C source modules: don't hand 0 to vmalloc. module: Remove a extra null character at the top of module->strtab. ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants ASN.1: Define indefinite length marker constant moduleparam: use __UNIQUE_ID() __UNIQUE_ID() MODSIGN: Add modules_sign make target powerpc: add finit_module syscall. ima: support new kernel module syscall add finit_module syscall to asm-generic ARM: add finit_module syscall to ARM security: introduce kernel_module_from_file hook module: add flags arg to sys_finit_module() module: add syscall to load module from fd
2012-12-18Coccinelle: add api/d_find_alias.cocciCyril Roelandt1-0/+80
Ensure that calls to d_find_alias() have a corresponding dput(). Signed-off-by: Cyril Roelandt <tipecaml@gmail.com> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Gilles Muller <Gilles.Muller@lip6.fr> Cc: Nicolas Palix <nicolas.palix@imag.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: warn on CamelCase variable namesJoe Perches1-6/+13
Store the camelcase variables in a hash and only emit a warning on the first use of each new variable. 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>
2012-12-17checkpatch: add support for floating point constantsJoe Perches1-1/+5
Even though the kernel doesn't support using floating point constants, add a regex for them. Support forms like: 0x123p1, 123e-1, 1.23, 1.5e23f 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>
2012-12-17checkpatch: find hex constants as a single IDENTJoe Perches1-1/+1
Hexadecimal values are current found in 2 parts. A hex constant like 0x123456abcdef is found as 0 and then x123456abcdef and later coalesced. Instead, reverse the order of the 2 searches in $Constant to find 0x first, then 0 so that the entire hex constant is found all at once. 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>
2012-12-17checkpatch: add --strict test for switch/default missing breakJoe Perches1-2/+16
switch default case is sometimes written as "default:;". This can cause new cases added below the default to be defective. Suggest adding a break; after empty default cases to avoid fallthrough defects. Fixed indentation in the other semicolon test above it. Suggested-by: Peter Senna Tschudin <peter.senna@gmail.com> 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>
2012-12-17checkpatch: warn when declaring "struct spinlock foo;"Joe Perches1-0/+6
spinlock_t should always be used. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: "Luis R. Rodriguez" <mcgrof@do-not-panic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: Add --strict messages for blank lines around bracesJoe Perches1-0/+10
Blank lines around braces are not unnecessary. Emit a message on the use of these blank lines only when using --strict. int foo(int bar) { something or other.... } is generally written in the kernel as: int foo(int bar) { something or other... } 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>
2012-12-17checkpatch: extend line continuation testJoe Perches1-1/+3
Preprocessor directives and asm statements should be allowed to have a line continuation. Signed-off-by: Joe Perches <joe@perches.com> Tested-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: allow control over line length warning, default remains 80Joe Perches1-3/+6
Some projects might want a longer line length so allow a command line --max-line-length=n control over the long line warnings. The default line length is 80. Signed-off-by: Joe Perches <joe@perches.com> Cc: Constantine Shulyupin <const@makelinux.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>
2012-12-17checkpatch: consolidate if (foo) bar(foo) checks and add debugfs_removeAndy Whitcroft1-14/+6
Consolidate the if (foo) bar(foo) detectors into a single check. Add debugfs_remove and family. Based on a patch by Constantine Shulyupin. Signed-off-by: Andy Whitcroft <apw@canonical.com> Cc: Constantine Shulyupin <const@MakeLinux.com>. Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: remove reference to feature-removal-schedule.txtTao Ma1-37/+0
In commit 9c0ece069b32 ("Get rid of Documentation/feature-removal.txt"), Linus removes feature-removal-schedule.txt from Documentation, but there is still some reference to this file. So remove them. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Acked-by: Andy Whitcroft <apw@canonical.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: warn about using CONFIG_EXPERIMENTALKees Cook1-0/+13
This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, it is being removed. This will discourage future addition of CONFIG_EXPERIMENTAL while it is being phased out. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andy Whitcroft <apw@canonical.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17checkpatch: warn on unnecessary line continuationsJoe Perches1-0/+9
When the previous line is not a line continuation and the current line has a line continuation but is not a #define, emit a warning. Signed-off-by: Joe Perches <joe@perches.com> Cc: Peter Hurley <peter@hurleysoftware.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>
2012-12-14MODSIGN: Add modules_sign make targetJosh Boyer1-0/+32
If CONFIG_MODULE_SIG is set, and 'make modules_sign' is called then this patch will cause the modules to get a signature appended. The make target is intended to be run after 'make modules_install', and will modify the modules in-place in the installed location. It can be used to produce signed modules after they have been processed by distribution build scripts. Signed-off-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (minor typo fix)
2012-12-13Merge branch 'for-linus' of ↵Linus Torvalds1-0/+34
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial branch from Jiri Kosina: "Usual stuff -- comment/printk typo fixes, documentation updates, dead code elimination." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) HOWTO: fix double words typo x86 mtrr: fix comment typo in mtrr_bp_init propagate name change to comments in kernel source doc: Update the name of profiling based on sysfs treewide: Fix typos in various drivers treewide: Fix typos in various Kconfig wireless: mwifiex: Fix typo in wireless/mwifiex driver messages: i2o: Fix typo in messages/i2o scripts/kernel-doc: check that non-void fcts describe their return value Kernel-doc: Convention: Use a "Return" section to describe return values radeon: Fix typo and copy/paste error in comments doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c various: Fix spelling of "asynchronous" in comments. Fix misspellings of "whether" in comments. eisa: Fix spelling of "asynchronous". various: Fix spelling of "registered" in comments. doc: fix quite a few typos within Documentation target: iscsi: fix comment typos in target/iscsi drivers treewide: fix typo of "suport" in various comments and Kconfig treewide: fix typo of "suppport" in various comments ...
2012-12-12Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds1-0/+1
Pull ARM updates from Russell King: "Here's the updates for ARM for this merge window, which cover quite a variety of areas. There's a bunch of patch series from Will tackling various bugs like the PROT_NONE handling, ASID allocation, cluster boot protocol and ASID TLB tagging updates. We move to a build-time sorted exception table rather than doing the sorting at run-time, add support for the secure computing filter, and some updates to the perf code. We also have sorted out the placement of some headers, fixed some build warnings, fixed some hotplug problems with the per-cpu TWD code." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (73 commits) ARM: 7594/1: Add .smp entry for REALVIEW_EB ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets. ARM: 7595/1: syscall: rework ordering in syscall_trace_exit ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch. ARM: 7593/1: nommu: do not enable DCACHE_WORD_ACCESS when !CONFIG_MMU ARM: 7592/1: nommu: prevent generation of kernel unaligned memory accesses ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 ARM: 7590/1: /proc/interrupts: limit the display of IPIs to online CPUs only ARM: 7587/1: implement optimized percpu variable access ARM: 7589/1: integrator: pass the lm resource to amba ARM: 7588/1: amba: create a resource parent registrator ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM ARM: 7585/1: kernel: fix nr_cpu_ids check in DT logical map init ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected ARM: gic: use a private mapping for CPU target interfaces ARM: kernel: add logical mappings look-up ARM: kernel: add cpu logical map DT init in setup_arch ARM: kernel: add device tree init map function ...
2012-12-11Merge tag 'driver-core-3.8-rc1' of ↵Linus Torvalds1-14/+10
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the large driver core updates for 3.8-rc1. The biggest thing here is the various __dev* marking removals. This is going to be a pain for the merge with different subsystem trees, I know, but all of the patches included here have been ACKed by their various subsystem maintainers, as they wanted them to go through here. If this is too much of a pain, I can pull all of them out of this tree and just send you one with the other fixes/updates and then, after 3.8-rc1 is out, do the rest of the removals to ensure we catch them all, it's up to you. The merges should all be trivial, and Stephen has been doing them all in linux-next for a few weeks now quite easily. Other than the __dev* marking removals, there's nothing major here, some firmware loading updates and other minor things in the driver core. All of these have (much to Stephen's annoyance), been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio update. * tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits) modpost.c: Stop checking __dev* section mismatches init.h: Remove __dev* sections from the kernel acpi: remove use of __devinit PCI: Remove __dev* markings PCI: Always build setup-bus when PCI is enabled PCI: Move pci_uevent into pci-driver.c PCI: Remove CONFIG_HOTPLUG ifdefs unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs sh/PCI: Remove CONFIG_HOTPLUG ifdefs powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs mips/PCI: Remove CONFIG_HOTPLUG ifdefs microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs dma: remove use of __devinit dma: remove use of __devexit_p firewire: remove use of __devinitdata firewire: remove use of __devinit leds: remove use of __devexit leds: remove use of __devinit leds: remove use of __devexit_p mmc: remove use of __devexit ...
2012-12-11Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2-0/+5
Pull device tree changes from Grant Likely: "Here are the DT changes I've got queued up for v3.8. As described below, there are a lot of bug fixes here and documentation updates but nothing major: Bug fixes, little cleanups, and documentation changes. The most invasive thing here touches a bunch of the arch directories to use a common build rule for .dtb files. There are no major changes to functionality here other than a few new helper functions." * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits) arm64: Fix the dtbs target building mtd: nand: davinci: fix the binding documentation rtc: rtc-mv: Add the device tree binding documentation devicetree/bindings: Move gpio-leds binding into leds directory of/vendor-prefixes: add Imagination Technologies microblaze: use new common dtc rule c6x: use new common dtc rule openrisc: use new common dtc rule arm64: Add dtbs target for building all the enabled dtb files arm64: use new common dtc rule ARM: dt: change .dtb build rules to build in dts directory kbuild: centralize .dts->.dtb rule Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes" of/spi: Honour "status=disabled" property of device of_mdio: Honour "status=disabled" property of device of_i2c: Honour "status=disabled" property of device powerpc: Fix fallout from device_node->name constification of: add 'const' for of_parse_phandle parameter *np Documentation: correct of_platform_populate() argument list script: dtc: clean generated files ...
2012-12-11Merge branches 'cache-l2x0', 'fixes', 'hdrs', 'misc', 'mmci', 'vic' and ↵Russell King15-490/+536
'warnings' into for-next
2012-11-30modpost.c: Stop checking __dev* section mismatchesGreg Kroah-Hartman1-14/+10
Now that the __dev* sections are not being generated, we don't need to check for them in modpost.c. Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-30kbuild: centralize .dts->.dtb ruleStephen Warren1-0/+3
All architectures that use cmd_dtc do so in almost the same way. Create a central build rule to avoid duplication. The one difference is that most current uses of dtc build $(obj)/%.dtb from $(src)/dts/%.dts rather than building the .dtb in the same directory as the .dts file. This difference will be eliminated arch-by-arch in future patches. MIPS is the exception here; it already uses the exact same rule as the new common rule, so the duplicate is removed in this patch to avoid any conflict. arch/mips changes courtesy of Ralf Baechle. Update Documentation/kbuild to remove the explicit call to cmd_dtc from the example, now that the rule exists in a centralized location. Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arm-kernel@lists.infradead.org Cc: Olof Johansson <olof@lixom.net> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: linux@lists.openrisc.net Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: linux-c6x-dev@linux-c6x.org Cc: Mark Salter <msalter@redhat.com> Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-11-27scripts/kernel-doc: check that non-void fcts describe their return valueYacine Belkadi1-0/+34
If a function has a return value, but its kernel-doc comment doesn't contain a "Return" section, then emit the following warning: Warning(file.h:129): No description found for return value of 'fct' Note: This check emits a lot of warnings at the moment, because many functions don't have a 'Return' doc section. So until the number of warnings goes sufficiently down, the check is only performed in verbose mode. Signed-off-by: Yacine Belkadi <yacine.belkadi.1@gmail.com> Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-26UAPI: strip the _UAPI prefix from header guards during header installationDavid Howells1-0/+3
Strip the _UAPI prefix from header guards during header installation so that any userspace dependencies aren't affected. glibc, for example, checks for linux/types.h, linux/kernel.h, linux/compiler.h and linux/list.h by their guards - though the last two aren't actually exported. libtool: compile: gcc -std=gnu99 -DHAVE_CONFIG_H -I. -Wall -Werror -Wformat -Wformat-security -D_FORTIFY_SOURCE=2 -fno-delete-null-pointer-checks -fstack-protector -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables -c child.c -fPIC -DPIC -o .libs/child.o In file included from cli.c:20:0: common.h:152:8: error: redefinition of 'struct sysinfo' In file included from /usr/include/linux/kernel.h:4:0, from /usr/include/linux/sysctl.h:25, from /usr/include/sys/sysctl.h:43, from common.h:50, from cli.c:20: /usr/include/linux/sysinfo.h:7:8: note: originally defined here Reported-by: Tomasz Torcz <tomek@pipebreaker.pl> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-21sign-file: fix the perl warning message when extracting ASN.1Chun-Yi Lee1-3/+3
There have the following warning message when running modules install for sign ko files: # make modules_install ... INSTALL drivers/input/touchscreen/pcap_ts.ko Found = in conditional, should be == at scripts/sign-file line 164. Found = in conditional, should be == at scripts/sign-file line 161. Found = in conditional, should be == at scripts/sign-file line 159. This patch change replace '=' by '==' in elsif conditions for avoid the above warning messages. Signed-off-by: Chun-Yi Lee <jlee@suse.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-21script: dtc: clean generated filesMagnus Damm1-0/+2
Fix "make distclean" to clean up generated dtc files. Without this patch the following files are left around: - dtc-lexer.lex.c - dtc-parser.tab.c - dtc-parser.tab.h Signed-off-by: Magnus Damm <damm@opensource.se> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-12Merge branch 'rc-fixes' of ↵Linus Torvalds5-14/+106
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull menuconfig portability fix from Michal Marek: "Here is a fix for v3.7 that makes menuconfig compile again on systems whose C library is lacking CIRCLEQ_* macros. I thought I sent it earlier, but apparently I did not." * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: menuconfig: Replace CIRCLEQ by list_head-style lists.
2012-11-09Merge branch 'akpm' (Fixes from Andrew)Linus Torvalds1-2/+4
Merge misc fixes from Andrew Morton: "Five fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (5 patches) h8300: add missing L1_CACHE_SHIFT mm: bugfix: set current->reclaim_state to NULL while returning from kswapd() fanotify: fix missing break revert "epoll: support for disabling items, and a self-test app" checkpatch: improve network block comment style checking
2012-11-09checkpatch: improve network block comment style checkingJoe Perches1-2/+4
Some comment styles in net and drivers/net are flagged inappropriately. Avoid proclaiming inline comments like: int a = b; /* some comment */ and block comments like: /********************* * some comment ********************/ are defective. Tested with $ cat drivers/net/t.c /* foo */ /* * foo */ /* foo */ /* foo * bar */ /**************************** * some long block comment ***************************/ struct foo { int bar; /* another test */ }; $ Signed-off-by: Joe Perches <joe@perches.com> Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: David Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-06modules: don't break modules_install on external modules with no key.Rusty Russell1-1/+2
The script still spits out an error ("Can't read private key") but we don't break modules_install. Reported-by: Bruno Wolff III <bruno@wolff.to> Original-patch-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-11-04ARM: 7568/1: Sort exception table at compile timeStephen Boyd1-0/+1
Add the ARM machine identifier to sortextable and select the config option so that we can sort the exception table at compile time. sortextable relies on a section named __ex_table existing in the vmlinux, but ARM's linker script places the exception table in the data section. Give the exception table its own section so that sortextable can find it. This allows us to skip the sorting step during boot. Cc: David Daney <david.daney@cavium.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-25menuconfig: Replace CIRCLEQ by list_head-style lists.Benjamin Poirier5-14/+106
sys/queue.h and CIRCLEQ in particular have proven to cause portability problems (reported on Debian Sarge, Cygwin and FreeBSD) Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Tested-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net> Signed-off-by: Benjamin Poirier <bpoirier@suse.de> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-10-19MODSIGN: Move the magic string to the end of a module and eliminate the searchDavid Howells1-3/+3
Emit the magic string that indicates a module has a signature after the signature data instead of before it. This allows module_sig_check() to be made simpler and faster by the elimination of the search for the magic string. Instead we just need to do a single memcmp(). This works because at the end of the signature data there is the fixed-length signature information block. This block then falls immediately prior to the magic number. From the contents of the information block, it is trivial to calculate the size of the signature data and thus the size of the actual module data. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-19MODSIGN: perlify sign-file and merge in x509keyidDavid Howells2-346/+399
Turn sign-file into perl and merge in x509keyid. The latter doesn't need to be a separate script as it doesn't actually need to work out the SHA1 sum of the X.509 certificate itself, since it can get that from the X.509 certificate. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-19kbuild: Fix module signature generationLinus Torvalds1-2/+3
Rusty had clearly not actually tested his module signing changes that I (trustingly) applied as commit e2a666d52b48 ("kbuild: sign the modules at install time"). That commit had multiple bugs: - using "${#VARIABLE}" to get the number of characters in a shell variable may look clever, but it's locale-dependent: it returns the number of *characters*, not bytes. And we do need bytes. So don't use "${#..}" expansion, do the stupid "wc -c" thing instead (where "c" stands for "bytes", not "characters", despite the letter. - Rusty had confused "siglen" and "signerlen", and his conversion didn't set "signerlen" at all, and incorrectly set "siglen" to the size of the signer, not the size of the signature. End result: the modified sign-file script did create something that superficially *looked* like a signature, but didn't actually work at all, and would fail the signature check. Oops. Tssk, tssk, Rusty. But Rusty was definitely right that this whole thing should be rewritten in perl by somebody who has the perl-fu to do so. That is not me, though - I'm just doing an emergency fix for the shell script. Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-19kbuild: sign the modules at install timeRusty Russell4-111/+28
Linus deleted the old code and put signing on the install command, I fixed it to extract the keyid and signer-name within sign-file and cleaned up that script now it always signs in-place. Some enthusiast should convert sign-key to perl and pull x509keyid into it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-18Merge tag 'dt-fixes-for-3.7' of git://sources.calxeda.com/kernel/linuxLinus Torvalds1-34/+10
Pull DeviceTree fixes from Rob Herring: "A handful of fixes: - a fix for dtc from upstream - sparse fixes in DeviceTree code - stub of_get_child_by_name for !OF builds" * tag 'dt-fixes-for-3.7' of git://sources.calxeda.com/kernel/linux: dtc: fix for_each_*() to skip first object if deleted of/platform: sparse fix of/irq: sparse fixes of/address: sparse fixes of: add stub of_get_child_by_name for non-OF builds
2012-10-17dtc: fix for_each_*() to skip first object if deletedStephen Warren1-34/+10
The previous definition of for_each_*() would always include the very first object within the list, irrespective of whether it was marked deleted, since the deleted flag was not checked on the first object, but only on any "next" object. Fix for_each_*() to check the deleted flag in the loop body every iteration to correct this. (upstream dtc commit 1762ab42ef77db7ab2776d0d6cba3515150f518a) Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-10-17uapi: Allow automatic generation of uapi/asm/ header filesCatalin Marinas1-1/+1
Several arch/*/include/uapi/asm/* header simply include the corresponding <asm-generic/*> file. This patch allows such files to be specified in uapi/asm/Kbuild via "generic-y += ..." to be automatically generated (similar to asm/Kbuild). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: David Howells <dhowells@redhat.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Arnd Bergmann <arnd@arndb.de>
2012-10-15kbuild: Fix accidental revert in commit fe04ddfMichal Marek1-2/+2
Commit fe04ddf7c291 ("kbuild: Do not package /boot and /lib in make tar-pkg") accidentally reverted two previous kbuild commits. I don't know what I was thinking. This brings back changes made by commits 24cc7fb69a5b ("x86/kbuild: archscripts depends on scripts_basic") and c1c1a59e37da ("firmware: fix directory creation rule matching with make 3.80") Reported-by: Jan Beulich <JBeulich@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-14Merge branch 'modules-next' of ↵Linus Torvalds7-1/+2018
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module signing support from Rusty Russell: "module signing is the highlight, but it's an all-over David Howells frenzy..." Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG. * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits) X.509: Fix indefinite length element skip error handling X.509: Convert some printk calls to pr_devel asymmetric keys: fix printk format warning MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking MODSIGN: Make mrproper should remove generated files. MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs MODSIGN: Use the same digest for the autogen key sig as for the module sig MODSIGN: Sign modules during the build process MODSIGN: Provide a script for generating a key ID from an X.509 cert MODSIGN: Implement module signature checking MODSIGN: Provide module signing public keys to the kernel MODSIGN: Automatically generate module signing keys if missing MODSIGN: Provide Kconfig options MODSIGN: Provide gitignore and make clean rules for extra files MODSIGN: Add FIPS policy module: signature checking hook X.509: Add a crypto key parser for binary (DER) X.509 certificates MPILIB: Provide a function to read raw data into an MPI X.509: Add an ASN.1 decoder X.509: Add simple ASN.1 grammar compiler ...
2012-10-12Merge branch 'misc' of ↵Linus Torvalds5-9/+366
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild misc changes from Michal Marek: "In the non-critical part of kbuild, I have - Some make coccicheck improvements and two new tests - Support for a cleaner html output in scripts/kernel-doc, named html5 (no, it does not play videos, yet) BTW, Randy wants to route further kernel-doc patches through the kbuild tree." * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Update SmPL/Coccinelle section of MAINTAINERS coccicheck: Add the rep+ctxt mode scripts/coccinelle/tests/odd_ptr_err.cocci: semantic patch for IS_ERR/PTR_ERR inconsistency scripts/tags.sh: Add magic for pci access functions scripts/coccinelle: ptr_ret: Add ternary operator version scripts/kernel-doc: drop maintainer scripts/kernel-doc: added support for html5
2012-10-12Merge branch 'kconfig' of ↵Linus Torvalds10-130/+289
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig changes from Michal Marek: "kconfig in v3.7 is going to - initialize ncurses only once in menuconfig - be able to jump to a search result in menuconfig - change the misnomer oldnoconfig to a more meaningful name olddefconfig, keeping the old name as alias" * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias menuconfig: Assign jump keys per-page instead of globally menuconfig: Do not open code textbox scroll up/down menuconfig: Add jump keys to search results menuconfig: Extend dialog_textbox so that it can return to a scrolled position menuconfig: Extend dialog_textbox so that it can exit on arbitrary keypresses menuconfig: Remove superfluous conditionnal kconfig: document oldnoconfig to what it really does in conf.c kconfig/mconf.c: revision of curses initialization.
2012-10-12Merge branch 'kbuild' of ↵Linus Torvalds4-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild changes from Michal Marek: "The main part of kbuild for v3.7 contains: - Fix for scripts/Makefile.modpost to not choke on a '.ko' substring in the build directory path - Two warning fixes (modpost and main Makefile) - __compiletime_error works also with gcc 4.3 - make tar{gz,bz2,xz}-pkg uses default compression settings instead of saving as many bytes as possible (this should actually be in the misc branch, I don't know why I applied it here)." * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: compiler-gcc4.h: correct verion check for __compiletime_error modpost: Permit .GCC.command.line sections Kbuild: use normal compression settings for tar*-pkg scripts/Makefile.modpost: error in finding modules from .mod files. kbuild: Remove useless warning while appending KCFLAGS
2012-10-11modpost: Permit .GCC.command.line sectionsJonathan Kliegman1-0/+1
Allow .GCC.command.line sections in modules to prevent modpost warnings: WARNING: sound/usb/snd-usbmidi-lib.o (.GCC.command.line): unexpected non-allocatable section. Did you forget to use "ax"/"aw" in a .S file? Note that for example <linux/init.h> contains section definitions for use in .S files. Signed-off-by: Jonathan Kliegman <kliegs@chromium.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-10-11coccicheck: Add the rep+ctxt modeNicolas Palix1-0/+3
This adds a 'rep+ctxt' mode which prints the warning message followed by the context. Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-10-11scripts/coccinelle/tests/odd_ptr_err.cocci: semantic patch for ↵Julia Lawall1-0/+65
IS_ERR/PTR_ERR inconsistency Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-10-10MODSIGN: Sign modules during the build processDavid Howells2-1/+191
If CONFIG_MODULE_SIG is set, then this patch will cause all modules files to to have signatures added. The following steps will occur: (1) The module will be linked to foo.ko.unsigned instead of foo.ko (2) The module will be stripped using both "strip -x -g" and "eu-strip" to ensure minimal size for inclusion in an initramfs. (3) The signature will be generated on the stripped module. (4) The signature will be appended to the module, along with some information about the signature and a magic string that indicates the presence of the signature. Step (3) requires private and public keys to be available. By default these are expected to be found in files: signing_key.priv signing_key.x509 in the base directory of the build. The first is the private key in PEM form and the second is the X.509 certificate in DER form as can be generated from openssl: openssl req \ -new -x509 -outform PEM -out signing_key.x509 \ -keyout signing_key.priv -nodes \ -subj "/CN=H2G2/O=Magrathea/CN=Slartibartfast" If the secret key is not found then signing will be skipped and the unsigned module from (1) will just be copied to foo.ko. If signing occurs, lines like the following will be seen: LD [M] fs/foo/foo.ko.unsigned STRIP [M] fs/foo/foo.ko.stripped SIGN [M] fs/foo/foo.ko will appear in the build log. If the signature step will be skipped and the following will be seen: LD [M] fs/foo/foo.ko.unsigned STRIP [M] fs/foo/foo.ko.stripped NO SIGN [M] fs/foo/foo.ko NOTE! After the signature step, the signed module _must_not_ be passed through strip. The unstripped, unsigned module is still available at the name on the LD [M] line. This restriction may affect packaging tools (such as rpmbuild) and initramfs composition tools. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-10-10MODSIGN: Provide a script for generating a key ID from an X.509 certDavid Howells1-0/+268
Provide a script to parse an X.509 certificate and certain pieces of information from it in order to generate a key identifier to be included within a module signature. The script takes the Subject Name and extracts (if present) the organizationName (O), the commonName (CN) and the emailAddress and fabricates the signer's name from them: (1) If both O and CN exist, then the name will be "O: CN", unless: (a) CN is prefixed by O, in which case only CN is used. (b) CN and O share at least the first 7 characters, in which case only CN is used. (2) Otherwise, CN is used if present. (3) Otherwise, O is used if present. (4) Otherwise the emailAddress is used, if present. (5) Otherwise a blank name is used. The script emits a binary encoded identifier in the following form: - 2 BE bytes indicating the length of the signer's name. - 2 BE bytes indicating the length of the subject key identifier. - The characters of the signer's name. - The bytes of the subject key identifier. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-10-09Merge tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linuxLinus Torvalds1-0/+2
Pull Xtensa patchset from Chris Zankel: "The Xtensa tree has been broken for some time now, and this patchset brings it back to life. It has been part of the linux-next tree for some time. Most changes are inside the xtensa subdirectory; the other changes mostly add another rule to already existing #ifdefs to exclude Xtensa, where required. The only 'common' change is to add two more sections ('.xt.prop' and '.xt.lit') to the white list in modpost." * tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linux: (27 commits) xtensa: Setup CROSS_COMPILE at the top xtensa: drop CONFIG_EMBEDDED_RAMDISK xtensa: fix TIOCGSERIAL and TIOCSSERIAL definitions xtensa: provide dummy gcc intrinsics xtensa: add missing symbol exports parport: disable for xtensa arch xtensa: rename MISC SR definition to avoid name clashes hisax: disable build for big-endian xtensa xtensa: fix CODA build xtensa: fix parallel make xtensa: ISS: drop unused io.c xtensa: ISS: exit simulator in case of halt or poweroff xtensa: ISS: change keyboard polling rate xtensa: ISS: add platform_pcibios_init xtensa: ISS: add dummy serial.h for ISS platform xtensa: change default platform clock frequency to 10MHz xtensa: add ARCH_WANT_OPTIONAL_GPIOLIB to xtensa config xtensa: set NO_IOPORT to 'n' by default xtensa: adopt generic io routines xtensa: fix ioremap ...
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