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[ Upstream commit6f02e39fa4] When MIPS_CPS=y, MIPS_CPS_PM is not set, HOTPLUG_CPU is not set, and KEXEC=y, cps_shutdown_this_cpu() attempts to call cps_pm_enter_state(), which is not built when MIPS_CPS_PM is not set. Conditionally execute the else branch based on CONFIG_HOTPLUG_CPU to remove the build error. This build failure is from a randconfig file. mips-linux-ld: arch/mips/kernel/smp-cps.o: in function `$L162': smp-cps.c:(.text.cps_kexec_nonboot_cpu+0x31c): undefined reference to `cps_pm_enter_state' Fixes:1447864bee("MIPS: kexec: CPS systems to halt nonboot CPUs") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Dengcheng Zhu <dzhu@wavecomp.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: Sergei Shtylyov <sergei.shtylyov@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.