7a0cfaf9d4
commit 88d7b12068b95731c280af8ce88e8ee9561f96de upstream. We already round down the address in kunmap_local_indexed() which is the other implementation of __kunmap_local(). The only implementation of kunmap_flush_on_unmap() is PA-RISC which is expecting a page-aligned address. This may be causing PA-RISC to be flushing the wrong addresses currently. Link: https://lkml.kernel.org/r/20230126200727.1680362-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Fixes: 298fa1ad5571 ("highmem: Provide generic variant of kmap_atomic*") Reviewed-by: Ira Weiny <ira.weiny@intel.com> Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Helge Deller <deller@gmx.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Bagas Sanjaya <bagasdotme@gmail.com> Cc: David Sterba <dsterba@suse.com> Cc: Kees Cook <keescook@chromium.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 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.