aboutsummaryrefslogtreecommitdiff
path: root/Makefile
Commit message (Collapse)AuthorAgeFilesLines
* kernel: don't use ccache to build kernelMoyster2019-08-011-2/+2
|
* kbuild: collect shorthands into scripts/Kbuild.includeMasahiro Yamada2018-12-211-7/+0
| | | | | | | | | | | | | | | The shorthand "clean" is defined in both the top Makefile and scripts/Makefile.clean. Likewise, the "hdr-inst" is defined in both the top Makefile and scripts/Makefile.headersinst. To reduce code duplication, this commit collects them into scripts/Kbuild.include like the "build" and "modbuiltin" shorthands. It requires scripts/Makefile.clean to include scripts/Kbuild.include, but its impact on the performance of "make clean" should be negligible. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Make Documenation depend on headers_installPeter Foley2018-11-291-0/+2
| | | | | | | | | | | | Cc: rdunlap@infradead.org Cc: linux-doc@vger.kernel.org Cc: sudeep.dutt@intel.com Cc: nikhil.rao@intel.com Cc: ashutosh.dixit@intel.com Cc: akpm@linux-foundation.org Cc: gregkh@linuxfoundation.org Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* kbuild: use $(Q) for sub-make targetMasahiro Yamada2018-11-291-2/+1
| | | | | | | | | | | | | Since commit 066b7ed9558087a7957a1128f27d7a3462ff117f (kbuild: Do not print the build directory with make -s), "Q" is defined above the sub-make target. This commit takes advantage of that and replaces "$(if $(KBUILD_VERBOSE:1=),@)" with "$(Q)". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: fake the "Entering directory ..." message more simplyMasahiro Yamada2018-11-291-5/+8
| | | | | | | | | | | | | Commit c2e28dc975ea87feed84415006ae143424912ac7 (kbuild: Print the name of the build directory) added a gimmick to show the "Entering directory ...". Instead of echoing the hard-coded message (that is, we need to know the exact message), moving --no-print-directory would be easier. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: simplify build, clean, modbuiltin shorthandsMasahiro Yamada2018-11-291-1/+1
| | | | | | | | | | | | | $(if $(KBUILD_SRC),$(srctree)/) was a useful strategy to omit a long absolute path for in-source-tree build prior to commit 890676c65d699db3ad82e7dddd0cf8fb449031af (kbuild: Use relative path when building in the source tree). Now $(srctree) is "." when building in the source tree. It would not be annoying to add "$(srctree)/" all the time. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: Fix make help-<board series> on powerpcMichal Marek2018-11-291-2/+2
| | | | | | | make ARCH=powerpc help-<board series> should not require a cofigured source tree. Also, sort the boards in the output. Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: forbid kernel directory to contain spaces and colonsRobert Jarzmik2018-11-291-0/+4
| | | | | | | | | | | | | | When the kernel path contains a space or a colon somewhere in the path name, the modules_install target doesn't work anymore, as the path names are not enclosed in double quotes. It is also supposed that and O= build will suffer from the same weakness as modules_install. Instead of checking and improving kbuild to resist to directories including these characters, error out early to prevent any build if the kernel's main directory contains a space. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Michal Marek <mmarek@suse.com>
* kbuild: Allow arch Makefiles to override {cpp,ld,c}flagsMichal Marek2018-11-291-4/+5
| | | | | | | | | | | | | | | Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command line options), the arch Makefile is included earlier by the main Makefile, preventing the arc architecture to set its -O3 compiler option. Since there might be more use cases for an arch Makefile to fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and ARCH_CFLAGS variables that are appended to the respective kbuild variables. The user still has the final say via the KCPPFLAGS, KAFLAGS and KCFLAGS variables. Reported-by: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: stable@vger.kernel.org # 3.16+ Signed-off-by: Michal Marek <mmarek@suse.com>
* kbuild: Automatically remove stale <linux/version.h> fileMichal Marek2018-11-291-0/+2
| | | | | | | | | | | | | | In 3.7, the file moved from include/linux/ to include/generated/uapi/linux/. The path in the #include directive remained the same for compatibility reasons, but this created a problem when bisecting. Commit 9c8cdb71 (kbuild: unconditionally clobber include/linux/version.h on distclean) fixes this, provided the user does make distclean between builds. Better not rely on the user and delete the stale file each time make is invoked. Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: use mixed-targets when two or more config targets are givenMasahiro Yamada2018-11-291-1/+1
| | | | | | | | | | | | | | | | "make kvmconfig" expects that the .config has already been created, but some people might want to create the .config and run kvmconfig in one shot command, like this: $ make defconfig kvmconfig To make sure this command works correctly even if -j* option is set, we must handle them one by one. This commit turns on mixed-targets when $(MAKECMDGOALS) includes at least one config target and also includes another target. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Makefile: include arch/*/include/generated/uapi before .../generatedMichal Marek2018-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | The introduction of the uapi directories in v3.7-rc1 moved some of the generated headers from arch/*/include/generated to the uapi directory, keeping the #include directives intact. This creates a problem when bisecting, because the unversioned files are not cleaned automatically by git and the compiler might include stale headers as a result. Instead of cleaning them in the Makefiles, promote arch/*/include/generated/uapi in the search path. Under normal circumstances, there is no overlap between this uapi subdirectory and its parent, so the include choices remain the same. We keep arch/*/include/generated/uapi in the USERINCLUDE variable so that it is usable standalone. Note that we cannot completely swap the order of the uapi and kernel-only directories, since the headers in include/uapi/asm-generic are meant to be wrapped by their include/asm-generic counterparts when building kernel code. Reported-by: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Reported-by: David Drysdale <dmd@lurklurk.org> Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHESArnd Bergmann2018-11-291-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_PROFILE_ALL_BRANCHES confuses gcc-5.x to the degree that it prints incorrect warnings about a lot of variables that it thinks can be used uninitialized, e.g.: i2c/busses/i2c-diolan-u2c.c: In function 'diolan_usb_xfer': i2c/busses/i2c-diolan-u2c.c:391:16: warning: 'byte' may be used uninitialized in this function iio/gyro/itg3200_core.c: In function 'itg3200_probe': iio/gyro/itg3200_core.c:213:6: warning: 'val' may be used uninitialized in this function leds/leds-lp55xx-common.c: In function 'lp55xx_update_bits': leds/leds-lp55xx-common.c:350:6: warning: 'tmp' may be used uninitialized in this function misc/bmp085.c: In function 'show_pressure': misc/bmp085.c:363:10: warning: 'pressure' may be used uninitialized in this function power/ds2782_battery.c: In function 'ds2786_get_capacity': power/ds2782_battery.c:214:17: warning: 'raw' may be used uninitialized in this function These are all false positives that either rob someone's time when trying to figure out whether they are real, or they get people to send wrong patches to shut up the warnings. Nobody normally wants to run a CONFIG_PROFILE_ALL_BRANCHES kernel in production, so disabling the whole class of warnings for this configuration has no serious downsides either. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Steven Rostedt <rostedtgoodmis.org> Signed-off-by: Michal Marek <mmarek@suse.com>
* Kbuild: avoid duplicate include pathArnd Bergmann2018-11-291-2/+3
| | | | | | | | | | | | | | arch/$(hdr-arch)/include/generated/uapi is included twice in the header search path, which is unnecessary, so this changes the top-level Makefile to drop the second instance by filtering out everything from USERINCLUDE that was already part of LINUXINCLUDE. This should have very little effect other than making the 'make V=1' output slightly smaller and making the build time faster by a miniscule amount, but it seems to be cleaner. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Marek <mmarek@suse.com>
* jump label: pass kbuild_cflags when checking for asm goto supportDavid Lin2018-11-291-1/+1
| | | | | | | | | | | | | | | | Some versions of ARM GCC compiler such as Android toolchain throws in a '-fpic' flag by default. This causes the gcc-goto check script to fail although some config would have '-fno-pic' flag in the KBUILD_CFLAGS. This patch passes the KBUILD_CFLAGS to the check script so that the script does not rely on the default config from different compilers. Link: http://lkml.kernel.org/r/20170120234329.78868-1-dtwlin@google.com Signed-off-by: David Lin <dtwlin@google.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Michal Marek <mmarek@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gcov: disable -Wmaybe-uninitialized warningArnd Bergmann2018-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | When gcov profiling is enabled, we see a lot of spurious warnings about possibly uninitialized variables being used: arch/arm/mm/dma-mapping.c: In function 'arm_coherent_iommu_map_page': arch/arm/mm/dma-mapping.c:1085:16: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/clk/st/clk-flexgen.c: In function 'st_of_flexgen_setup': drivers/clk/st/clk-flexgen.c:323:9: warning: 'num_parents' may be used uninitialized in this function [-Wmaybe-uninitialized] kernel/cgroup.c: In function 'cgroup_mount': kernel/cgroup.c:2119:11: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized] All of these are false positives, so it seems better to just disable the warnings whenever GCOV is enabled. Most users don't enable GCOV, and based on a prior patch, it is now also disabled for 'allmodconfig' builds, so there should be no downsides of doing this. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Michal Marek <mmarek@suse.com>
* gcov: disable tree-loop-im to reduce stack usageArnd Bergmann2018-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling CONFIG_GCOV_PROFILE_ALL produces us a lot of warnings like lib/lz4/lz4hc_compress.c: In function 'lz4_compresshcctx': lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1504 bytes is larger than 1024 bytes [-Wframe-larger-than=] After some investigation, I found that this behavior started with gcc-4.9, and opened https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69702. A suggested workaround for it is to use the -fno-tree-loop-im flag that turns off one of the optimization stages in gcc, so the code runs a little slower but does not use excessive amounts of stack. We could make this conditional on the gcc version, but I could not find an easy way to do this in Kbuild and the benefit would be fairly small, given that most of the gcc version in production are affected now. I'm marking this for 'stable' backports because it addresses a bug with code generation in gcc that exists in all kernel versions with the affected gcc releases. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.com>
* kbuild: Do not run modules_install and install in paralelMichal Marek2018-11-291-0/+6
| | | | | | | | | Based on a x86-only patch by Andy Lutomirski <luto@amacapital.net> With modular kernels, 'make install' is going to need the installed modules at some point to generate the initramfs. Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: remove warning about "make depend"Masahiro Yamada2018-11-291-6/+0
| | | | | | | | Enough time has passed since "make depend" was deprecated. Nobody would be in trouble without this hint. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: Do not reference *-n variables in the MakefileMichal Marek2018-11-291-3/+1
| | | | | | Kconfig options are either 'y', 'm', or undefined. Signed-off-by: Michal Marek <mmarek@suse.cz>
* makefile: Add --strip-debug flagWilli Ye2018-11-291-1/+1
| | | | This should fix the size of qcacld-2.0 module
* kbuild: Support split debug info v4Andi Kleen2018-11-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an alternative approach to lower the overhead of debug info (as we discussed a few days ago) gcc 4.7+ and newer binutils have a new "split debug info" debug info model where the debug info is only written once into central ".dwo" files. This avoids having to copy it around multiple times, from the object files to the final executable. It lowers the disk space requirements. In addition it defaults to compressed debug data. More details here: http://gcc.gnu.org/wiki/DebugFission This patch adds a new option to enable it. It has to be an option, because it'll undoubtedly break everyone's debuginfo packaging scheme. gdb/objdump/etc. all still work, if you have new enough versions. I don't see big compile wins (maybe a second or two faster or so), but the object dirs with debuginfo get significantly smaller. My standard kernel config (slightly bigger than defconfig) shrinks from 2.9G disk space to 1.1G objdir (with non reduced debuginfo). I presume if you are IO limited the compile time difference will be larger. Only problem I've seen so far is that it doesn't play well with older versions of ccache (apparently fixed, see https://bugzilla.samba.org/show_bug.cgi?id=10005) v2: various fixes from Dirk Gouders. Improve commit message slightly. v3: Fix clean rules and improve Kconfig slightly v4: Fix merge error in last version (Sam Ravnborg) Clarify description that it mainly helps disk size. Cc: Dirk Gouders <dirk@gouders.net> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: LLVMLinux: Add Kbuild support for building kernel with ClangBehan Webster2018-11-291-0/+29
| | | | | | | | | | | | | | | Add support to toplevel Makefile for compiling with clang, both for HOSTCC and CC. Use cc-option to prevent gcc option from breaking clang, and from clang options from breaking gcc. Clang 3.4 semantics are the same as gcc semantics for unsupported flags. For unsupported warnings clang 3.4 returns true but shows a warning and gcc shows a warning and returns false. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Cc: PaX Team <pageexec@freemail.hu>
* ./Makefile: tell gcc optimizer to never introduce new data racesJiri Kosina2018-11-291-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have been chasing a memory corruption bug, which turned out to be caused by very old gcc (4.3.4), which happily turned conditional load into a non-conditional one, and that broke correctness (the condition was met only if lock was held) and corrupted memory. This particular problem with that particular code did not happen when never gccs were used. I've brought this up with our gcc folks, as I wanted to make sure that this can't really happen again, and it turns out it actually can. Quoting Martin Jambor <mjambor@suse.cz>: "More current GCCs are more careful when it comes to replacing a conditional load with a non-conditional one, most notably they check that a store happens in each iteration of _a_ loop but they assume loops are executed. They also perform a simple check whether the store cannot trap which currently passes only for non-const variables. A simple testcase demonstrating it on an x86_64 is for example the following: $ cat cond_store.c int g_1 = 1; int g_2[1024] __attribute__((section ("safe_section"), aligned (4096))); int c = 4; int __attribute__ ((noinline)) foo (void) { int l; for (l = 0; (l != 4); l++) { if (g_1) return l; for (g_2[0] = 0; (g_2[0] >= 26); ++g_2[0]) ; } return 2; } int main (int argc, char* argv[]) { if (mprotect (g_2, sizeof(g_2), PROT_READ) == -1) { int e = errno; error (e, e, "mprotect error %i", e); } foo (); __builtin_printf("OK\n"); return 0; } /* EOF */ $ ~/gcc/trunk/inst/bin/gcc cond_store.c -O2 --param allow-store-data-races=0 $ ./a.out OK $ ~/gcc/trunk/inst/bin/gcc cond_store.c -O2 --param allow-store-data-races=1 $ ./a.out Segmentation fault The testcase fails the same at least with 4.9, 4.8 and 4.7. Therefore I would suggest building kernels with this parameter set to zero. I also agree with Jikos that the default should be changed for -O2. I have run most of the SPEC 2k6 CPU benchmarks (gamess and dealII failed, at -O2, not sure why) compiled with and without this option and did not see any real difference between respective run-times" Hopefully the default will be changed in newer gccs, but let's force it for kernel builds so that we are on a safe side even when older gcc are used. The code in question was out-of-tree printk-in-NMI (yeah, surprise suprise, once again) patch written by Petr Mladek, let me quote his comment from our internal bugzilla: "I have spent few days investigating inconsistent state of kernel ring buffer. It went out that it was caused by speculative store generated by gcc-4.3.4. The problem is in assembly generated for make_free_space(). The functions is called the following way: + vprintk_emit(); + log = MAIN_LOG; // with logbuf_lock or log = NMI_LOG; // with nmi_logbuf_lock cont_add(log, ...); + cont_flush(log, ...); + log_store(log, ...); + log_make_free_space(log, ...); If called with log = NMI_LOG then only nmi_log_* global variables are safe to modify but the generated code does store also into (main_)log_* global variables: <log_make_free_space>: 55 push %rbp 89 f6 mov %esi,%esi 48 8b 05 03 99 51 01 mov 0x1519903(%rip),%rax # ffffffff82620868 <nmi_log_next_id> 44 8b 1d ec 98 51 01 mov 0x15198ec(%rip),%r11d # ffffffff82620858 <log_next_idx> 8b 35 36 60 14 01 mov 0x1146036(%rip),%esi # ffffffff8224cfa8 <log_buf_len> 44 8b 35 33 60 14 01 mov 0x1146033(%rip),%r14d # ffffffff8224cfac <nmi_log_buf_len> 4c 8b 2d d0 98 51 01 mov 0x15198d0(%rip),%r13 # ffffffff82620850 <log_next_seq> 4c 8b 25 11 61 14 01 mov 0x1146111(%rip),%r12 # ffffffff8224d098 <log_buf> 49 89 c2 mov %rax,%r10 48 21 c2 and %rax,%rdx 48 8b 1d 0c 99 55 01 mov 0x155990c(%rip),%rbx # ffffffff826608a0 <nmi_log_buf> 49 c1 ea 20 shr $0x20,%r10 48 89 55 d0 mov %rdx,-0x30(%rbp) 44 29 de sub %r11d,%esi 45 29 d6 sub %r10d,%r14d 4c 8b 0d 97 98 51 01 mov 0x1519897(%rip),%r9 # ffffffff82620840 <log_first_seq> eb 7e jmp ffffffff81107029 <log_make_free_space+0xe9> [...] 85 ff test %edi,%edi # edi = 1 for NMI_LOG 4c 89 e8 mov %r13,%rax 4c 89 ca mov %r9,%rdx 74 0a je ffffffff8110703d <log_make_free_space+0xfd> 8b 15 27 98 51 01 mov 0x1519827(%rip),%edx # ffffffff82620860 <nmi_log_first_id> 48 8b 45 d0 mov -0x30(%rbp),%rax 48 39 c2 cmp %rax,%rdx # end of loop 0f 84 da 00 00 00 je ffffffff81107120 <log_make_free_space+0x1e0> [...] 85 ff test %edi,%edi # edi = 1 for NMI_LOG 4c 89 0d 17 97 51 01 mov %r9,0x1519717(%rip) # ffffffff82620840 <log_first_seq> ^^^^^^^^^^^^^^^^^^^^^^^^^^ KABOOOM 74 35 je ffffffff81107160 <log_make_free_space+0x220> It stores log_first_seq when edi == NMI_LOG. This instructions are used also when edi == MAIN_LOG but the store is done speculatively before the condition is decided. It is unsafe because we do not have "logbuf_lock" in NMI context and some other process migh modify "log_first_seq" in parallel" I believe that the best course of action is both - building kernel (and anything multi-threaded, I guess) with that optimization turned off - persuade gcc folks to change the default for future releases Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Martin Jambor <mjambor@suse.cz> Cc: Petr Mladek <pmladek@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Marek Polacek <polacek@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Steven Noonan <steven@uplinklabs.net> Cc: Richard Biener <richard.guenther@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* turn off -Wattribute-aliasArnd Bergmann2018-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting with gcc-8.1, we get a warning about all system call definitions, which use an alias between functions with incompatible prototypes, e.g.: In file included from ../mm/process_vm_access.c:19: ../include/linux/syscalls.h:211:18: warning: 'sys_process_vm_readv' alias between functions of incompatible types 'long int(pid_t, const struct iovec *, long unsigned int, const struct iovec *, long unsigned int, long unsigned int)' {aka 'long int(int, const struct iovec *, long unsigned int, const struct iovec *, long unsigned int, long unsigned int)'} and 'long int(long int, long int, long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ../include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ../include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ../mm/process_vm_access.c:300:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(process_vm_readv, pid_t, pid, const struct iovec __user *, lvec, ^~~~~~~~~~~~~~~ ../include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ ../include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ../include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ../mm/process_vm_access.c:300:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(process_vm_readv, pid_t, pid, const struct iovec __user *, lvec, This is really noisy and does not indicate a real problem. In the latest mainline kernel, this was addressed by commit bee20031772a ("disable -Wattribute-alias warning for SYSCALL_DEFINEx()"), which seems too invasive to backport. This takes a much simpler approach and just disables the warning across the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* disable new gcc-7.1.1 warnings for nowLinus Torvalds2018-11-291-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | commit bd664f6b3e376a8ef4990f87d08271cc2d01ba9a upstream. I made the mistake of upgrading my desktop to the new Fedora 26 that comes with gcc-7.1.1. There's nothing wrong per se that I've noticed, but I now have 1500 lines of warnings, mostly from the new format-truncation warning triggering all over the tree. We use 'snprintf()' and friends in a lot of places, and often know that the numbers are fairly small (ie a controller index or similar), but gcc doesn't know that, and sees an 'int', and thinks that it could be some huge number. And then complains when our buffers are not able to fit the name for the ten millionth controller. These warnings aren't necessarily bad per se, and we probably want to look through them subsystem by subsystem, but at least during the merge window they just mean that I can't even see if somebody is introducing any *real* problems when I pull. So warnings disabled for now. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Disable "frame-address" warningLinus Torvalds2018-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 124a3d88fa20e1869fc229d7d8c740cc81944264 upstream. Newer versions of gcc warn about the use of __builtin_return_address() with a non-zero argument when "-Wall" is specified: kernel/trace/trace_irqsoff.c: In function ‘stop_critical_timings’: kernel/trace/trace_irqsoff.c:433:86: warning: calling ‘__builtin_return_address’ with a nonzero argument is unsafe [-Wframe-address] stop_critical_timing(CALLER_ADDR0, CALLER_ADDR1); [ .. repeats a few times for other similar cases .. ] It is true that a non-zero argument is somewhat dangerous, and we do not actually have very many uses of that in the kernel - but the ftrace code does use it, and as Stephen Rostedt says: "We are well aware of the danger of using __builtin_return_address() of > 0. In fact that's part of the reason for having the "thunk" code in x86 (See arch/x86/entry/thunk_{64,32}.S). [..] it adds extra frames when tracking irqs off sections, to prevent __builtin_return_address() from accessing bad areas. In fact the thunk_32.S states: 'Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)'." For now, __builtin_return_address() with a non-zero argument is the best we can do, and the warning is not helpful and can end up making people miss other warnings for real problems. So disable the frame-address warning on compilers that need it. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* kbuild: add -fno-PIESebastian Andrzej Siewior2018-11-291-1/+2
| | | | | | | | | | | | | | | | | | | | | [ Upstream commit 8ae94224c9d72fc4d9aaac93b2d7833cf46d7141 ] Debian started to build the gcc with -fPIE by default so the kernel build ends before it starts properly with: |kernel/bounds.c:1:0: error: code model kernel does not support PIC mode Also add to KBUILD_AFLAGS due to: |gcc -Wp,-MD,arch/x86/entry/vdso/vdso32/.note.o.d … -mfentry -DCC_USING_FENTRY … vdso/vdso32/note.S |arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry isn’t supported for 32-bit in combination with -fpic Tagging it stable so it is possible to compile recent stable kernels as well. Cc: stable@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Michal Marek <mmarek@suse.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
* Makefile: Fix unrecognized cross-compiler command line optionsGeert Uytterhoeven2018-11-291-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On architectures that setup CROSS_COMPILE in their arch/*/Makefile (arc, blackfin, m68k, mips, parisc, score, sh, tile, unicore32, xtensa), cc-option and cc-disable-warning may check against the wrong compiler, causing errors like cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" if the host gcc supports a compiler option, while the cross compiler doesn't support that option. Move all logic using cc-option or cc-disable-warning below the inclusion of the arch's Makefile to fix this. Introduced by - commit e74fc973b6e531fef1fce8b101ffff05ecfb774c ("Turn off -Wmaybe-uninitialized when building with -Os"), - commit 61163efae02040f66a95c8ed17f4407951ba58fa ("kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang"). As -Wno-maybe-uninitialized requires a quite recent gcc (gcc 4.6.3 on Ubuntu 12.04 LTS doesn't support it), this only showed up recently (gcc 4.8.2 on Ubuntu 14.04 LTS does support it). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* cflags: cleanup Makefile & arm64 Makefile (-ftree-vectorize is enabled when ↵Moyster2017-12-221-11/+0
| | | | building with O3, let's keep it clean)
* Makefile: Enable ld fix for cortex-a53 errata 843419Rohit Vaswani2017-12-181-0/+3
| | | | | | | | Enable the linker flag --fix-cortex-a53-843419 for ARM Cortex-A53 Errata 843419 Change-Id: I03e7be05eb96c4708c9791b4efbb7d4831ef5704 Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
* Makefile: Fix device not booting with GCC 7.x and aboveZaneZam2017-12-181-0/+3
| | | | | | | | | | | | | | | | | | | | @nathanchance: Filtered from the original commit (https://github.com/zanezam/boeffla-kernel-cm-n51x0/commit/228cc26b4b66ce3c9232eb00faaf95c3b1b3ae3c) I tested all of the flags in the above commit and this is the only one that prevented the phone from booting, with -Os, -O2, and -O3. Without this, the phone will boot to the Google logo, hang for a few seconds, then reboot, and repeat the process. This flag can be read about below. This issue can also be resolved (supposedly) with the -mstrict-align flag, leading me to believe it is something with memory access. I believe this is a better solution though given that ARM handles unaligned access perfectly fine. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fstore-merging https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html#index-mstrict-align Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
* Makefile: Disable "unused-constant-variable" warning globallyNathan Chancellor2017-12-181-0/+3
| | | | Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
* Makefile: Disable "format-truncation" warning globallyNathan Chancellor2017-12-181-0/+3
| | | | | | | | | | | This was introduced in GCC 7.x: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wformat-truncation This warning doesn't really make sense in the context of the kernel because there is no way for the values it complains about to be cut off. For example, it complains about a cpu int getting truncated, when in reality it will never be over 7 for this device (octacore). Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
* Makefile: fix build with make 3.80 againJan Beulich2017-12-021-2/+4
| | | | | | | | | | | | | | | | | | | | | | | According to Documentation/Changes, make 3.80 is still being supported for building the kernel, hence make files must not make (unconditional) use of features introduced only in newer versions. Commit 8779657d29c0 ("stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG") however introduced an "else ifdef" construct which make 3.80 doesn't understand. Also correct a warning message still referencing the old config option name. Apart from that I question the use of "ifdef" here (but it was used that way already prior to said commit): ifeq (,y) would seem more to the point. Change-Id: Ibf0dcc7d10839b77dfc6b3f1c68e76879f91c9f8 Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Makefile: fix extra parenthesis typo when CC_STACKPROTECTOR_REGULAR is enabledFathi Boudra2017-12-021-1/+1
| | | | | | | | | | | | | | | | | An extra parenthesis typo introduced in 19952a92037e ("stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures") is causing the following error when CONFIG_CC_STACKPROTECTOR_REGULAR is enabled: Makefile:608: Cannot use CONFIG_CC_STACKPROTECTOR: -fstack-protector not supported by compiler Makefile:608: *** missing separator. Stop. Change-Id: I4be729636df36915fd2250fafe2e4df0143c0410 Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Linux 3.10.108Willy Tarreau2017-11-061-2/+2
|
* Disable "maybe-uninitialized" warning globallyLinus Torvalds2017-09-301-1/+3
| | | | | | | | | | | | | | | | | | | | | Several build configurations had already disabled this warning because it generates a lot of false positives. But some had not, and it was still enabled for "allmodconfig" builds, for example. Looking at the warnings produced, every single one I looked at was a false positive, and the warnings are frequent enough (and big enough) that they can easily hide real problems that you don't notice in the noise generated by -Wmaybe-uninitialized. The warning is good in theory, but this is a classic case of a warning that causes more problems than the warning can solve. If gcc gets better at avoiding false positives, we may be able to re-enable this warning. But as is, we're better off without it, and I want to be able to see the *real* warnings. Change-Id: Ie810d255be8911c413c9abe6965a9a66639a1dce Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ./Makefile: tell gcc optimizer to never introduce new data racesJiri Kosina2017-08-311-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have been chasing a memory corruption bug, which turned out to be caused by very old gcc (4.3.4), which happily turned conditional load into a non-conditional one, and that broke correctness (the condition was met only if lock was held) and corrupted memory. This particular problem with that particular code did not happen when never gccs were used. I've brought this up with our gcc folks, as I wanted to make sure that this can't really happen again, and it turns out it actually can. Quoting Martin Jambor <mjambor@suse.cz>: "More current GCCs are more careful when it comes to replacing a conditional load with a non-conditional one, most notably they check that a store happens in each iteration of _a_ loop but they assume loops are executed. They also perform a simple check whether the store cannot trap which currently passes only for non-const variables. A simple testcase demonstrating it on an x86_64 is for example the following: $ cat cond_store.c int g_1 = 1; int g_2[1024] __attribute__((section ("safe_section"), aligned (4096))); int c = 4; int __attribute__ ((noinline)) foo (void) { int l; for (l = 0; (l != 4); l++) { if (g_1) return l; for (g_2[0] = 0; (g_2[0] >= 26); ++g_2[0]) ; } return 2; } int main (int argc, char* argv[]) { if (mprotect (g_2, sizeof(g_2), PROT_READ) == -1) { int e = errno; error (e, e, "mprotect error %i", e); } foo (); __builtin_printf("OK\n"); return 0; } /* EOF */ $ ~/gcc/trunk/inst/bin/gcc cond_store.c -O2 --param allow-store-data-races=0 $ ./a.out OK $ ~/gcc/trunk/inst/bin/gcc cond_store.c -O2 --param allow-store-data-races=1 $ ./a.out Segmentation fault The testcase fails the same at least with 4.9, 4.8 and 4.7. Therefore I would suggest building kernels with this parameter set to zero. I also agree with Jikos that the default should be changed for -O2. I have run most of the SPEC 2k6 CPU benchmarks (gamess and dealII failed, at -O2, not sure why) compiled with and without this option and did not see any real difference between respective run-times" Hopefully the default will be changed in newer gccs, but let's force it for kernel builds so that we are on a safe side even when older gcc are used. The code in question was out-of-tree printk-in-NMI (yeah, surprise suprise, once again) patch written by Petr Mladek, let me quote his comment from our internal bugzilla: "I have spent few days investigating inconsistent state of kernel ring buffer. It went out that it was caused by speculative store generated by gcc-4.3.4. The problem is in assembly generated for make_free_space(). The functions is called the following way: + vprintk_emit(); + log = MAIN_LOG; // with logbuf_lock or log = NMI_LOG; // with nmi_logbuf_lock cont_add(log, ...); + cont_flush(log, ...); + log_store(log, ...); + log_make_free_space(log, ...); If called with log = NMI_LOG then only nmi_log_* global variables are safe to modify but the generated code does store also into (main_)log_* global variables: <log_make_free_space>: 55 push %rbp 89 f6 mov %esi,%esi 48 8b 05 03 99 51 01 mov 0x1519903(%rip),%rax # ffffffff82620868 <nmi_log_next_id> 44 8b 1d ec 98 51 01 mov 0x15198ec(%rip),%r11d # ffffffff82620858 <log_next_idx> 8b 35 36 60 14 01 mov 0x1146036(%rip),%esi # ffffffff8224cfa8 <log_buf_len> 44 8b 35 33 60 14 01 mov 0x1146033(%rip),%r14d # ffffffff8224cfac <nmi_log_buf_len> 4c 8b 2d d0 98 51 01 mov 0x15198d0(%rip),%r13 # ffffffff82620850 <log_next_seq> 4c 8b 25 11 61 14 01 mov 0x1146111(%rip),%r12 # ffffffff8224d098 <log_buf> 49 89 c2 mov %rax,%r10 48 21 c2 and %rax,%rdx 48 8b 1d 0c 99 55 01 mov 0x155990c(%rip),%rbx # ffffffff826608a0 <nmi_log_buf> 49 c1 ea 20 shr $0x20,%r10 48 89 55 d0 mov %rdx,-0x30(%rbp) 44 29 de sub %r11d,%esi 45 29 d6 sub %r10d,%r14d 4c 8b 0d 97 98 51 01 mov 0x1519897(%rip),%r9 # ffffffff82620840 <log_first_seq> eb 7e jmp ffffffff81107029 <log_make_free_space+0xe9> [...] 85 ff test %edi,%edi # edi = 1 for NMI_LOG 4c 89 e8 mov %r13,%rax 4c 89 ca mov %r9,%rdx 74 0a je ffffffff8110703d <log_make_free_space+0xfd> 8b 15 27 98 51 01 mov 0x1519827(%rip),%edx # ffffffff82620860 <nmi_log_first_id> 48 8b 45 d0 mov -0x30(%rbp),%rax 48 39 c2 cmp %rax,%rdx # end of loop 0f 84 da 00 00 00 je ffffffff81107120 <log_make_free_space+0x1e0> [...] 85 ff test %edi,%edi # edi = 1 for NMI_LOG 4c 89 0d 17 97 51 01 mov %r9,0x1519717(%rip) # ffffffff82620840 <log_first_seq> ^^^^^^^^^^^^^^^^^^^^^^^^^^ KABOOOM 74 35 je ffffffff81107160 <log_make_free_space+0x220> It stores log_first_seq when edi == NMI_LOG. This instructions are used also when edi == MAIN_LOG but the store is done speculatively before the condition is decided. It is unsafe because we do not have "logbuf_lock" in NMI context and some other process migh modify "log_first_seq" in parallel" I believe that the best course of action is both - building kernel (and anything multi-threaded, I guess) with that optimization turned off - persuade gcc folks to change the default for future releases Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Martin Jambor <mjambor@suse.cz> Cc: Petr Mladek <pmladek@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Marek Polacek <polacek@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Steven Noonan <steven@uplinklabs.net> Cc: Richard Biener <richard.guenther@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Linux 3.10.107Willy Tarreau2017-07-041-1/+1
|
* Linux 3.10.106Willy Tarreau2017-06-171-1/+1
| | | | | Conflicts: Makefile
* Revert "use -O3 compile flags"Moyster2017-06-021-2/+2
| | | | This reverts commit 7bd42c9fc7c3f553fd2b502249fbbfba462a1555.
* makefile: reorganize cflagsMister Oyster2017-05-281-10/+9
|
* um: fix buildMister Oyster2017-05-041-0/+10
|
* Linux 3.10.105Willy Tarreau2017-04-111-1/+1
|
* stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONGKees Cook2016-11-111-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the stack protector config option into a choice of "None", "Regular", and "Strong": CONFIG_CC_STACKPROTECTOR_NONE CONFIG_CC_STACKPROTECTOR_REGULAR CONFIG_CC_STACKPROTECTOR_STRONG "Regular" means the old CONFIG_CC_STACKPROTECTOR=y option. "Strong" is a new mode introduced by this patch. With "Strong" the kernel is built with -fstack-protector-strong (available in gcc 4.9 and later). This option increases the coverage of the stack protector without the heavy performance hit of -fstack-protector-all. For reference, the stack protector options available in gcc are: -fstack-protector-all: Adds the stack-canary saving prefix and stack-canary checking suffix to _all_ function entry and exit. Results in substantial use of stack space for saving the canary for deep stack users (e.g. historically xfs), and measurable (though shockingly still low) performance hit due to all the saving/checking. Really not suitable for sane systems, and was entirely removed as an option from the kernel many years ago. -fstack-protector: Adds the canary save/check to functions that define an 8 (--param=ssp-buffer-size=N, N=8 by default) or more byte local char array. Traditionally, stack overflows happened with string-based manipulations, so this was a way to find those functions. Very few total functions actually get the canary; no measurable performance or size overhead. -fstack-protector-strong Adds the canary for a wider set of functions, since it's not just those with strings that have ultimately been vulnerable to stack-busting. With this superset, more functions end up with a canary, but it still remains small compared to all functions with only a small change in performance. Based on the original design document, a function gets the canary when it contains any of: - local variable's address used as part of the right hand side of an assignment or function argument - local variable is an array (or union containing an array), regardless of array type or length - uses register local variables https://docs.google.com/a/google.com/document/d/1xXBH6rRZue4f296vGt9YQcuLVQHeE516stHwt8M9xyU Find below a comparison of "size" and "objdump" output when built with gcc-4.9 in three configurations: - defconfig 11430641 kernel text size 36110 function bodies - defconfig + CONFIG_CC_STACKPROTECTOR_REGULAR 11468490 kernel text size (+0.33%) 1015 of 36110 functions are stack-protected (2.81%) - defconfig + CONFIG_CC_STACKPROTECTOR_STRONG via this patch 11692790 kernel text size (+2.24%) 7401 of 36110 functions are stack-protected (20.5%) With -strong, ARM's compressed boot code now triggers stack protection, so a static guard was added. Since this is only used during decompression and was never used before, the exposure here is very small. Once it switches to the full kernel, the stack guard is back to normal. Chrome OS has been using -fstack-protector-strong for its kernel builds for the last 8 months with no problems. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1387481759-14535-3-git-send-email-keescook@chromium.org [ Improved the changelog and descriptions some more. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> Git-commit: 8779657d29c0ebcc0c94ede4df2f497baf1b563f Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: I0c53785c54b9c2bedd6134fb959b59d1d1afb0ef Signed-off-by: David Brown <davidb@codeaurora.org>
* stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architecturesKees Cook2016-11-111-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of duplicating the CC_STACKPROTECTOR Kconfig and Makefile logic in each architecture, switch to using HAVE_CC_STACKPROTECTOR and keep everything in one place. This retains the x86-specific bug verification scripts. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1387481759-14535-2-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org> [davidb@codeaurora.org: Simple Kconfig merge resolution] Git-commit: 19952a92037e752f9d3bbbad552d596f9a56e146 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: I6e430de3c79306724e90ea1178f242145c39f059 Signed-off-by: David Brown <davidb@codeaurora.org> Conflicts: arch/x86/Kconfig
* Linux 3.10.104Willy Tarreau2016-11-071-1/+1
|
* Makefile: Cortex-A53 ARM optimized flagsdragonpt2016-09-161-0/+2
|
* 3.10.102-> 3.10.103Jan Engelmohr2016-09-101-1/+1
|
generated by cgit v1.2.3 (git 2.39.1) at 2026-03-14 00:36:31 +0000