Re: [PATCH] apm_event{,info}_t are userspace types.

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Andrew Morton wrote:
On Fri, 30 Nov 2007 15:02:43 -0500 Adam Jackson <[email protected]> wrote:

These types define the size of data read from /dev/apm_bios.  They
should not be hidden behind #ifdef __KERNEL__.

Missing info: what are the consequences of this fix?  What id broken when
it it not applied?

This is killing my xserver compile, apm_event_t is used in the xserver source. The commit that introduced the problem is:

commit ee8e7cfe9d330d6f1ce0b9b1620d6df5d9cf6b70
Author: Rusty Russell <[email protected]>
Date:   Mon Oct 22 10:56:19 2007 +1000

    Make asm-x86/bootparam.h includable from userspace.

    To actually write a bootloader (or, say, the lguest launcher)
    currently requires duplication of these structures.  Making them
    includable from userspace is much nicer.

    We merge the common userspace-required definitions of e820_32/64.h
    into e820.h for export.

    Signed-off-by: Rusty Russell <[email protected]>



---
 include/linux/apm_bios.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

Please include Signed-off-by:, as per Documentation/SubmittingPatches,
thanks.

diff --git a/include/linux/apm_bios.h b/include/linux/apm_bios.h
index 9754baa..01a6244 100644
--- a/include/linux/apm_bios.h
+++ b/include/linux/apm_bios.h
@@ -18,6 +18,9 @@
#include <linux/types.h> +typedef unsigned short apm_event_t;
+typedef unsigned short	apm_eventinfo_t;
+
 struct apm_bios_info {
 	__u16	version;
 	__u16	cseg;
@@ -32,9 +35,6 @@ struct apm_bios_info {
#ifdef __KERNEL__ -typedef unsigned short apm_event_t;
-typedef unsigned short	apm_eventinfo_t;
-
 #define APM_CS		(GDT_ENTRY_APMBIOS_BASE * 8)
 #define APM_CS_16	(APM_CS + 8)
 #define APM_DS		(APM_CS_16 + 8)

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--
Eamon Walsh <[email protected]>
National Security Agency
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