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| author |   Helge Deller <deller@gmx.de> | 2016-04-08 18:11:33 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2016-04-08 22:13:45 +0200 |
| commit | e3893027a300927049efc1572f852201eb785142 (patch) | |
| tree | 19d418fb5ae91ca89da29261c6a6aaf10cfb74d6 /arch | |
| parent | parisc: Handle R_PARISC_PCREL32 relocations in kernel modules (diff) | |
| download | linux-dev-e3893027a300927049efc1572f852201eb785142.tar.xz linux-dev-e3893027a300927049efc1572f852201eb785142.zip | |
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: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/parisc_ksyms.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index 568b2c61ea02..3cad8aadc69e 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -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); |