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Madhavan Srinivasan 93bd4a80ef powerpc/kernel: Fix ppc_save_regs inclusion in build Recent patch fixed an old commit '`fc2a5a6161` ("powerpc/64s: ppc_save_regs is now needed for all 64s builds")' which is to include building of ppc_save_reg.c only when XMON and KEXEC_CORE and PPC_BOOK3S are enabled. This was valid, since ppc_save_regs was called only in replay_system_reset() of old irq.c which was under BOOK3S. But there has been multiple refactoring of irq.c and have added call to ppc_save_regs() from __replay_soft_interrupts -> replay_soft_interrupts which is part of irq_64.c included under CONFIG_PPC64. And since ppc_save_regs is called in CRASH_DUMP path as part of crash_setup_regs in kexec.h, CONFIG_PPC32 also needs it. So with this recent patch which enabled the building of ppc_save_regs.c caused a build break when none of these (XMON, KEXEC_CORE, BOOK3S) where enabled as part of config. Patch to enable building of ppc_save_regs.c by defaults. Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250511041111.841158-1-maddy@linux.ibm.com		History 2025-05-14 12:11:19 +05:30
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README

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 reStructuredText 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.