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

Commit e3893027 authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Avoid function pointers for kernel exception routines 



We want to avoid the kernel module loader to create function pointers
for the kernel fixup routines of get_user() and put_user(). Changing
the external reference from function type to int type fixes this.

This unbreaks exception handling for get_user() and put_user() when
called from a kernel module.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
parent 592570c9

arch/parisc/kernel/parisc_ksyms.c

+5 −5
Original line number Diff line number Diff line
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(__cmpxchg_u64); 
EXPORT_SYMBOL(lclear_user);

EXPORT_SYMBOL(lstrnlen_user);



/* Global fixups */

extern void fixup_get_user_skip_1(void);

extern void fixup_get_user_skip_2(void);

extern void fixup_put_user_skip_1(void);

extern void fixup_put_user_skip_2(void);

/* Global fixups - defined as int to avoid creation of function pointers */

extern int fixup_get_user_skip_1;

extern int fixup_get_user_skip_2;

extern int fixup_put_user_skip_1;

extern int fixup_put_user_skip_2;

EXPORT_SYMBOL(fixup_get_user_skip_1);

EXPORT_SYMBOL(fixup_get_user_skip_2);

EXPORT_SYMBOL(fixup_put_user_skip_1);