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xen: provide a prototype for xen_biovec_phys_mergeable in xen.h
authorChristoph Hellwig <hch@lst.de>
Tue, 25 Sep 2018 20:30:07 +0000 (13:30 -0700)
committerJens Axboe <axboe@kernel.dk>
Wed, 26 Sep 2018 14:45:10 +0000 (08:45 -0600)
commit20e3267601f95ff62d7a3116a17a680e9f5cbcc9
tree3a80325aca975b671866f88d3981cd4380669fe6
parentcd11b1d344784b1a4c0d7aa18edc0830fd3989d1
xen: provide a prototype for xen_biovec_phys_mergeable in xen.h

Having multiple externs in arch headers is not a good way to provide
a common interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
arch/arm/include/asm/io.h
arch/arm64/include/asm/io.h
arch/x86/include/asm/io.h
include/xen/xen.h