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commit7b83299e5bupstream. early_param() handlers should return 0 on success. __setup() handlers should return 1 on success, i.e., the parameter has been handled. A return of 0 would cause the "option=value" string to be added to init's environment strings, polluting it. ../arch/arm/mm/mmu.c: In function 'test_early_cachepolicy': ../arch/arm/mm/mmu.c:215:1: error: no return statement in function returning non-void [-Werror=return-type] ../arch/arm/mm/mmu.c: In function 'test_noalign_setup': ../arch/arm/mm/mmu.c:221:1: error: no return statement in function returning non-void [-Werror=return-type] Fixes:b849a60e09("ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: linux-arm-kernel@lists.infradead.org Cc: patches@armlinux.org.uk Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.