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John Paul Adrian Glaubitz b3962b4e83 ia64: tools: remove duplicate definition of ia64_mf() on ia64
[ Upstream commit f4bf09dc3aaa4b07cd15630f2023f68cb2668809 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-28 13:19:16 +02:00
arch ia64: fix discontig.c section mismatches 2021-04-28 13:19:16 +02:00
block block: only update parent bi_status when bio fail 2021-04-16 11:46:38 +02:00
certs
crypto
Documentation
drivers cavium/liquidio: Fix duplicate argument 2021-04-28 13:19:15 +02:00
fs readdir: make sure to verify directory entry for legacy interfaces too 2021-04-21 12:56:16 +02:00
include gpio: omap: Save and restore sysconfig 2021-04-28 13:19:14 +02:00
init
ipc
kernel locking/qrwlock: Fix ordering in queued_write_lock_slowpath() 2021-04-28 13:19:14 +02:00
lib
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net gro: ensure frag0 meets IP header alignment 2021-04-21 12:56:17 +02:00
samples
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sound ASoC: fsl_esai: Fix TDM slot setup for I2S mode 2021-04-21 12:56:14 +02:00
tools ia64: tools: remove duplicate definition of ia64_mf() on ia64 2021-04-28 13:19:16 +02:00
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Makefile Linux 5.4.114 2021-04-21 12:56:18 +02:00
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.