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In commiteae5f709a4("powerpc: Add __printf verification to prom_printf") __printf attribute was added to prom_printf(), which means GCC started warning about type/format mismatches. As part of that commit we changed some "%lx" formats to "%llx" where the type is actually unsigned long long. Unfortunately prom_printf() doesn't know how to print "%llx", it just prints a literal "lx", eg: reserved memory map: lx - lx lx - lx prom_printf() also doesn't know how to print "%u" (only "%lu"), it just prints a literal "u", eg: Max number of cores passed to firmware: u (NR_CPUS = 2048) Instead of: Max number of cores passed to firmware: 2048 (NR_CPUS = 2048) This commit adds support for the missing formatters. Fixes:eae5f709a4("powerpc: Add __printf verification to prom_printf") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mathieu Malaterre <malat@debian.org> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.