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24c4122065
The commit3a19109efb("x86/mm: Fix try_preserve_large_page() to handle large PAT bit") fixed try_preserve_large_page() by using the corresponding pud/pmd prot/pfn interfaces, but left a variable unused because it no longer used pte_pfn(). Later, the commit8679de0959("x86/mm/cpa: Split, rename and clean up try_preserve_large_page()") renamed try_preserve_large_page() to __should_split_large_page(), but the unused variable remains. arch/x86/mm/pageattr.c: In function '__should_split_large_page': arch/x86/mm/pageattr.c:741:17: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] Fixes:3a19109efb("x86/mm: Fix try_preserve_large_page() to handle large PAT bit") Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: dave.hansen@linux.intel.com Cc: luto@kernel.org Cc: peterz@infradead.org Cc: toshi.kani@hpe.com Cc: bp@alien8.de Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/20190301152924.94762-1-cai@lca.pw
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.