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Commit9908c826d5("powerpc/perf: Add Power10 PMU feature to DT CPU features") defines MMCRA_BHRB_DISABLE as `0x2000000000UL`. Binutils version less than 2.28 doesn't support UL suffix. arch/powerpc/kernel/cpu_setup_power.S: Assembler messages: arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', expected: ')' arch/powerpc/kernel/cpu_setup_power.S:250: Error: junk at end of line, first unrecognized character is `L' arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', expected: ')' arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', expected: ')' arch/powerpc/kernel/cpu_setup_power.S:250: Error: junk at end of line, first unrecognized character is `L' arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', expected: ')' arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', expected: ')' arch/powerpc/kernel/cpu_setup_power.S:250: Error: operand out of range (0x0000002000000000 is not between 0xffffffffffff8000 and 0x000000000000ffff) Fix this by wrapping it with the `_UL` macro. Fixes:9908c826d5("Add Power10 PMU feature to DT CPU features") Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Madhavan Srinivasan <maddy@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1595996214-5833-1-git-send-email-atrajeev@linux.vnet.ibm.com
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.