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vmw_balloon: Explicitly include linux/io.h for virt_to_phys()

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Through a labyrinthian sequence of includes, usage of virt_to_phys() is
dependent on the include of asm/io.h in x86's asm/realmode.h, which is
included in x86's asm/acpi.h and thus by linux/acpi.h.  Explicitly
include linux/io.h to break the dependency on realmode.h so that a
future patch can remove the realmode.h include from acpi.h without
breaking the build.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Link: https://lkml.kernel.org/r/20191126165417.22423-9-sean.j.christopherson@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Sean Christopherson 2019-11-26 08:54:13 -08:00 committed by Ingo Molnar
parent 41bfc11cde
commit 97976e01d3
1 changed files with 1 additions and 0 deletions
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drivers/misc/vmw_balloon.c
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@ -17,6 +17,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/types.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>