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author | Dan Williams <dan.j.williams@intel.com> | 2015-08-11 05:07:06 +0200 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2015-08-11 05:07:06 +0200 |
commit | 92b19ff50e8f242392d78b2aacc5b5b672f1796b (patch) | |
tree | 463927d91228174419ba1fe327f3cec6b9a2615a /kernel/memremap.c | |
parent | arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead (diff) | |
download | linux-92b19ff50e8f242392d78b2aacc5b5b672f1796b.tar.xz linux-92b19ff50e8f242392d78b2aacc5b5b672f1796b.zip |
cleanup IORESOURCE_CACHEABLE vs ioremap()
Quoting Arnd:
I was thinking the opposite approach and basically removing all uses
of IORESOURCE_CACHEABLE from the kernel. There are only a handful of
them.and we can probably replace them all with hardcoded
ioremap_cached() calls in the cases they are actually useful.
All existing usages of IORESOURCE_CACHEABLE call ioremap() instead of
ioremap_nocache() if the resource is cacheable, however ioremap() is
uncached by default. Clearly none of the existing usages care about the
cacheability. Particularly devm_ioremap_resource() never worked as
advertised since it always fell back to plain ioremap().
Clean this up as the new direction we want is to convert
ioremap_<type>() usages to memremap(..., flags).
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'kernel/memremap.c')
0 files changed, 0 insertions, 0 deletions