mainlining shenanigans
d08c84e01a
In fedora rawhide the PTHREAD_STACK_MIN define may end up expanded to a
sysconf() call, and that will return 'long int', breaking the build:
45 fedora:rawhide : FAIL gcc version 11.1.1 20210623 (Red Hat 11.1.1-6) (GCC)
builtin-sched.c: In function 'create_tasks':
/git/perf-5.14.0-rc1/tools/include/linux/kernel.h:43:24: error: comparison of distinct pointer types lacks a cast [-Werror]
43 | (void) (&_max1 == &_max2); \
| ^~
builtin-sched.c:673:34: note: in expansion of macro 'max'
673 | (size_t) max(16 * 1024, PTHREAD_STACK_MIN));
| ^~~
cc1: all warnings being treated as errors
$ grep __sysconf /usr/include/*/*.h
/usr/include/bits/pthread_stack_min-dynamic.h:extern long int __sysconf (int __name) __THROW;
/usr/include/bits/pthread_stack_min-dynamic.h:# define PTHREAD_STACK_MIN __sysconf (__SC_THREAD_STACK_MIN_VALUE)
/usr/include/bits/time.h:extern long int __sysconf (int);
/usr/include/bits/time.h:# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */
$
So cast it to int to cope with that.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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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.