[PARISC] Fix kernel panic in check_ivt
check_ivt had some seriously broken code wrt function pointers on
parisc64. Instead of referencing the hpmc code via a function pointer,
export symbols and reference it as a const array.
Thanks to jda for pointing out the broken 64-bit func ptr handling.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 0ba1d3d..c3ec9f1 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -802,13 +802,14 @@
int __init check_ivt(void *iva)
{
+ extern const u32 os_hpmc[];
+ extern const u32 os_hpmc_end[];
+
int i;
u32 check = 0;
u32 *ivap;
u32 *hpmcp;
u32 length;
- extern void os_hpmc(void);
- extern void os_hpmc_end(void);
if (strcmp((char *)iva, "cows can fly"))
return -1;
@@ -820,7 +821,7 @@
/* Compute Checksum for HPMC handler */
- length = (u32)((unsigned long)os_hpmc_end - (unsigned long)os_hpmc);
+ length = os_hpmc_end - os_hpmc;
ivap[7] = length;
hpmcp = (u32 *)os_hpmc;