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f4bf09dc3a
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")
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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>
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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.