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authorYinghai Lu <yhlu.kernel@gmail.com>2009-02-07 15:39:41 -0800
committerIngo Molnar <mingo@elte.hu>2009-02-09 13:35:07 +0100
commit7d97277b754d3ee098a5ec69b6aaafb00c94e2f2 (patch)
tree457ff6256a2da2f39f93500453a6a643ab29ef2b /arch/ia64/kernel
parent05876f88ed9a66b26af613e222795ae790616252 (diff)
downloadop-kernel-dev-7d97277b754d3ee098a5ec69b6aaafb00c94e2f2.zip
op-kernel-dev-7d97277b754d3ee098a5ec69b6aaafb00c94e2f2.tar.gz
acpi/x86: introduce __apci_map_table, v4
to prevent wrongly overwriting fixmap that still want to use. ACPI used to rely on low mappings being all linearly mapped and grew a habit: it never really unmapped certain kinds of tables after use. This can cause problems - for example the hypothetical case when some spurious access still references it. v2: remove prev_map and prev_size in __apci_map_table v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to early_acpi_os_unmap_memory v4: fix typo in one acpi_get_table_with_size calling Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/acpi.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index d541671..2363ed1 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -199,6 +199,10 @@ char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
return __va(phys_addr);
}
+char *__init __acpi_unmap_table(unsigned long virt_addr, unsigned long size)
+{
+}
+
/* --------------------------------------------------------------------------
Boot-time Table Parsing
-------------------------------------------------------------------------- */
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