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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2009-02-07 23:39:41 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-09 12:35:07 (GMT) |
| commit | 7d97277b754d3ee098a5ec69b6aaafb00c94e2f2 (patch) | |
| tree | 457ff6256a2da2f39f93500453a6a643ab29ef2b /arch/ia64 | |
| parent | 05876f88ed9a66b26af613e222795ae790616252 (diff) | |
| download | linux-7d97277b754d3ee098a5ec69b6aaafb00c94e2f2.tar.xz | |
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')
| -rw-r--r-- | arch/ia64/kernel/acpi.c | 4 |
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 -------------------------------------------------------------------------- */ |