[linux-yocto] [PATCH linux-yocto-4.4 00/14] Add Link Time Optimization

[Alejandro Hernandez]

Hey Bruce,


On 02/14/2017 03:03 PM, Bruce Ashfield wrote:
> On 2017-02-13 3:41 PM, Alejandro Hernandez wrote:
>> These set of patches enable Link Time Optimization (LTO), they are 
>> meant specifically
>> for linux-yocto-4.4, another set (rebased) will be sent for 
>> linux-yocto-4.8 and
>> linux-yocto-4.9 respectively, these also complement the series sent 
>> to yocto-kernel-cache
>> a few weeks ago.
>
> The changes look fine to me, but in order to properly track them
> against upstream, I'd like to add a bit more logging to the commit
> headers.
>
> I assume these were posted to lkml (I haven't gone to look yet),
> and if they were posted, can we add a lkml archive link to the
> headers ?
>
> That allows me to track the progress and update/drop them as appropriate.
>
> Bruce
>
Yes, these were posted to the lkml sometime ago, do you mean add the 
link to every patch on its commit specifically
or add the links for all of them in the cover letter?
>>
>> Andi Kleen (14):
>>   Kbuild, lto: Set TMPDIR for LTO v4
>>   lto: Add __noreorder and mark initcalls __noreorder
>>   Kbuild, lto: Add Link Time Optimization support
>>   lto: Disable LTO for hweight functions
>>   Don't inline __const_udelay
>>   Mark spinlocks noinline when inline spinlocks are disabled
>>   Kbuild, bloat-o-meter: Ignore .lto_priv postfix
>>   Don't let LATENCYTOP and LOCKDEP select KALLSYMS_ALL
>>   lto, workaround: Disable LTO for BPF
>>   x86, perf: Fix __initconst declaration in rapl perf driver
>>   x86, workaround: Disable mm init BUILD_BUG_ON for LTO
>>   work around linker map issue
>>   sched: Move sched_to_prio arrays out of line
>>   fixup! Kbuild, lto: Add Link Time Optimization support
>>
>>  Documentation/lto-build                     | 173 
>> ++++++++++++++++++++++++++++
>>  Makefile                                    |  19 ++-
>>  arch/x86/Kconfig                            |   2 +-
>>  arch/x86/kernel/cpu/perf_event_intel_rapl.c |   2 +-
>>  arch/x86/kernel/vmlinux.lds.S               |   2 +
>>  arch/x86/lib/delay.c                        |   2 +-
>>  arch/x86/mm/init_32.c                       |   2 +
>>  include/linux/compiler-gcc.h                |   5 +
>>  include/linux/compiler.h                    |   4 +
>>  include/linux/init.h                        |   2 +-
>>  init/Kconfig                                |  73 ++++++++++++
>>  kernel/bpf/Makefile                         |   5 +
>>  kernel/gcov/Kconfig                         |   2 +-
>>  kernel/locking/spinlock.c                   |  56 ++++-----
>>  kernel/sched/auto_group.c                   |   2 +-
>>  kernel/sched/core.c                         |  45 +++++++-
>>  kernel/sched/sched.h                        |  42 +------
>>  lib/Kconfig.debug                           |   3 +-
>>  lib/Makefile                                |   4 +-
>>  scripts/Makefile.lto                        |  94 +++++++++++++++
>>  scripts/Makefile.modpost                    |   7 +-
>>  scripts/bloat-o-meter                       |   1 +
>>  scripts/gcc-ld                              |   2 +-
>>  scripts/link-vmlinux.sh                     |   2 +-
>>  24 files changed, 466 insertions(+), 85 deletions(-)
>>  create mode 100644 Documentation/lto-build
>>  create mode 100644 scripts/Makefile.lto
>>
>