Commit 767dea21 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Borislav Petkov
Browse files

x86/tboot: Mark tboot static 



This structure is only really used in tboot.c.  The only exception
is a single tboot_enabled check, but for that we don't need an inline
function.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200428051703.1625952-1-hch@lst.de
parent 694cfd87

arch/x86/kernel/tboot.c

+6 −2
Original line number Diff line number Diff line
@@ -35,8 +35,7 @@ 
#include "../realmode/rm/wakeup.h"



/* Global pointer to shared data; NULL means no measured launch. */

struct tboot *tboot __read_mostly;

EXPORT_SYMBOL(tboot);

static struct tboot *tboot __read_mostly;



/* timeout for APs (in secs) to enter wait-for-SIPI state during shutdown */

#define AP_WAIT_TIMEOUT		1
@@ -46,6 +45,11 @@ EXPORT_SYMBOL(tboot); 


static u8 tboot_uuid[16] __initdata = TBOOT_UUID;



bool tboot_enabled(void)

{

	return tboot != NULL;

}



void __init tboot_probe(void)

{

	/* Look for valid page-aligned address for shared page. */

include/linux/tboot.h

+1 −7
Original line number Diff line number Diff line
@@ -121,13 +121,7 @@ struct tboot { 
#define TBOOT_UUID	{0xff, 0x8d, 0x3c, 0x66, 0xb3, 0xe8, 0x82, 0x4b, 0xbf,\

			 0xaa, 0x19, 0xea, 0x4d, 0x5, 0x7a, 0x8}



extern struct tboot *tboot;



static inline int tboot_enabled(void)

{

	return tboot != NULL;

}



bool tboot_enabled(void);

extern void tboot_probe(void);

extern void tboot_shutdown(u32 shutdown_type);

extern struct acpi_table_header *tboot_get_dmar_table(