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John Paul Adrian Glaubitz f4bf09dc3a ia64: tools: remove duplicate definition of ia64_mf() on ia64 
The ia64_mf() macro defined in tools/arch/ia64/include/asm/barrier.h is
already defined in <asm/gcc_intrin.h> on ia64 which causes libbpf
failing to build:

    CC       /usr/src/linux/tools/bpf/bpftool//libbpf/staticobjs/libbpf.o
  In file included from /usr/src/linux/tools/include/asm/barrier.h:24,
                   from /usr/src/linux/tools/include/linux/ring_buffer.h:4,
                   from libbpf.c:37:
  /usr/src/linux/tools/include/asm/../../arch/ia64/include/asm/barrier.h:43: error: "ia64_mf" redefined [-Werror]
     43 | #define ia64_mf()       asm volatile ("mf" ::: "memory")
        |
  In file included from /usr/include/ia64-linux-gnu/asm/intrinsics.h:20,
                   from /usr/include/ia64-linux-gnu/asm/swab.h:11,
                   from /usr/include/linux/swab.h:8,
                   from /usr/include/linux/byteorder/little_endian.h:13,
                   from /usr/include/ia64-linux-gnu/asm/byteorder.h:5,
                   from /usr/src/linux/tools/include/uapi/linux/perf_event.h:20,
                   from libbpf.c:36:
  /usr/include/ia64-linux-gnu/asm/gcc_intrin.h:382: note: this is the location of the previous definition
    382 | #define ia64_mf() __asm__ volatile ("mf" ::: "memory")
        |
  cc1: all warnings being treated as errors

Thus, remove the definition from tools/arch/ia64/include/asm/barrier.h.

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-04-16 16:10:37 -07:00
arch ia64: fix discontig.c section mismatches 2021-04-16 16:10:37 -07:00
block block: remove the unused RQF_ALLOCED flag 2021-04-02 11:18:31 -06:00
certs certs: Replace K{U,G}IDT_INIT() with GLOBAL_ROOT_{U,G}ID 2021-01-21 16:16:10 +00:00
crypto crypto: mips/poly1305 - enable for all MIPS processors 2021-03-08 11:52:17 +01:00
Documentation Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2021-04-10 09:10:55 -07:00
drivers drm/i915 fixes 2021-04-16 07:49:04 -07:00
fs for-5.12-rc6-tag 2021-04-11 11:53:36 -07:00
include kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
init Merge branch 'akpm' (patches from Andrew) 2021-03-14 12:23:34 -07:00
ipc fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
kernel tracing/dynevent: Fix a memory link in dyn_event_release() 2021-04-13 18:40:00 -07:00
lib kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
net net: fix hangup on napi_disable for threaded napi 2021-04-09 12:50:31 -07:00
samples Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-03-09 17:15:56 -08:00
scripts kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
security kasan: remove redundant config option 2021-04-16 16:10:36 -07:00
sound sound fixes for 5.12-rc7 2021-04-08 09:01:30 -07:00
tools ia64: tools: remove duplicate definition of ia64_mf() on ia64 2021-04-16 16:10:37 -07:00
usr Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
virt KVM: x86/mmu: Consider the hva in mmu_notifier retry 2021-02-22 13:16:53 -05:00
.clang-format cxl for 5.12 2021-02-24 09:38:36 -08:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore clang-lto series for v5.12-rc1 2021-02-23 09:28:51 -08:00
.mailmap .mailmap: fix old email addresses 2021-04-09 14:54:23 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge branch 'akpm' (patches from Andrew) 2021-04-09 17:06:32 -07:00
Makefile Linux 5.12-rc7 2021-04-11 15:16:13 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.