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| author | Kyle McMartin <kyle@parisc-linux.org> | 2007-06-04 08:26:52 +0200 |
|---|---|---|
| committer | Kyle McMartin <kyle@minerva.i.cabal.ca> | 2007-06-04 08:26:52 +0200 |
| commit | c3d4ed4e3e5aa8d9e6b4b795f004a7028ce780e9 (patch) | |
| tree | 1def009131bd6abec52a9a99a7c12ee22dc9b81f /arch/parisc | |
| parent | [PARISC] Fix bug when syscall nr is __NR_Linux_syscalls (diff) | |
| download | linux-c3d4ed4e3e5aa8d9e6b4b795f004a7028ce780e9.tar.xz linux-c3d4ed4e3e5aa8d9e6b4b795f004a7028ce780e9.zip | |
[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>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/kernel/hpmc.S | 5 | ||||
| -rw-r--r-- | arch/parisc/kernel/traps.c | 7 |
2 files changed, 5 insertions, 7 deletions
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S index d8baa158d8a0..43b41df0b541 100644 --- a/arch/parisc/kernel/hpmc.S +++ b/arch/parisc/kernel/hpmc.S @@ -295,8 +295,5 @@ os_hpmc_6: b . nop ENDPROC(os_hpmc) - - /* this label used to compute os_hpmc checksum */ -ENTRY(os_hpmc_end) - +ENTRY(os_hpmc_end) /* this label used to compute os_hpmc checksum */ nop diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 0ba1d3dbca2a..c3ec9f1ec0f3 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -802,13 +802,14 @@ void handle_interruption(int code, struct pt_regs *regs) 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 @@ int __init check_ivt(void *iva) /* 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; |