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authorArnd Bergmann <arnd@arndb.de>2016-12-09 12:44:40 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-12-10 14:57:58 +0100
commit190cc65e912de7e8f7ebddcecfbf55a610281a8c (patch)
treea4a006248cf123ca3498552213a33daba818f408 /scripts
parentTools: hv: kvp: configurable external scripts path (diff)
downloadlinux-190cc65e912de7e8f7ebddcecfbf55a610281a8c.tar.xz
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uio-hv-generic: store physical addresses instead of virtual
gcc warns about the newly added driver when phys_addr_t is wider than a pointer: drivers/uio/uio_hv_generic.c: In function 'hv_uio_mmap': drivers/uio/uio_hv_generic.c:71:17: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] virt_to_phys((void *)info->mem[mi].addr) >> PAGE_SHIFT, drivers/uio/uio_hv_generic.c: In function 'hv_uio_probe': drivers/uio/uio_hv_generic.c:140:5: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] = (phys_addr_t)dev->channel->ringbuffer_pages; drivers/uio/uio_hv_generic.c:147:3: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] (phys_addr_t)vmbus_connection.int_page; drivers/uio/uio_hv_generic.c:153:3: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] (phys_addr_t)vmbus_connection.monitor_pages[1]; I can't see why we store a virtual address in a phys_addr_t here, as the only user of that variable converts it into a physical address anyway, so this moves the conversion to where it logically fits according to the types. Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
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