Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f548ccd4 authored by Mike Waychison's avatar Mike Waychison Committed by Greg Kroah-Hartman
Browse files

x86: Better comments for get_bios_ebda() 



Make the comments a bit clearer for get_bios_ebda so that it actually
tells us what it is returning.

Signed-off-by: default avatarMike Waychison <mikew@google.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 57d5f9f8

arch/x86/include/asm/bios_ebda.h

+5 −2
Original line number Diff line number Diff line
@@ -4,11 +4,14 @@ 
#include <asm/io.h>



/*

 * there is a real-mode segmented pointer pointing to the

 * 4K EBDA area at 0x40E.

 * Returns physical address of EBDA.  Returns 0 if there is no EBDA.

 */

static inline unsigned int get_bios_ebda(void)

{

	/*

	 * There is a real-mode segmented pointer pointing to the

	 * 4K EBDA area at 0x40E.

	 */

	unsigned int address = *(unsigned short *)phys_to_virt(0x40E);

	address <<= 4;

	return address;	/* 0 means none */