[ Upstream commit 0d555b57ee660d8a871781c0eebf006e855e918d ] The linux-next build of powerpc64 allnoconfig fails with: arch/powerpc/mm/book3s64/pgtable.c:557:5: error: no previous prototype for 'pmd_move_must_withdraw' 557 | int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl, | ^~~~~~~~~~~~~~~~~~~~~~ Caused by commit: c6345dfa6e3e ("Makefile.extrawarn: turn on missing-prototypes globally") Fix it by moving the function definition under CONFIG_TRANSPARENT_HUGEPAGE like the prototype. The function is only called when CONFIG_TRANSPARENT_HUGEPAGE=y. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> [mpe: Flesh out change log from linux-next patch] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231127132809.45c2b398@canb.auug.org.au 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.
Description
Languages
C
97.6%
Assembly
1%
Shell
0.5%
Python
0.3%
Makefile
0.3%