diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2013-07-23 21:03:24 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-07-26 22:12:36 +0200 |
| commit | 45f1330af6819b348fbac89e69d59d8129d61960 (patch) | |
| tree | 41c03f9e6362f2ff61c57ee9686644e7c9d7c259 /arch/x86/kernel | |
| parent | 3b2f64d00c46e1e4e9bd0bb9bb12619adac27a4b (diff) | |
x86/acpi: Correct out-of-date comment of __acpi_map_table()
The implementation of function __acpi_map_table() has been
changed long time ago, and now it directly invokes
early_ioremap() to setup the temporarily acpi table mappings.
So correct its out-of-date comment.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: len.brown@intel.com
Cc: pavel@ucw.cz
Cc: rjw@sisk.pl
Link: http://lkml.kernel.org/r/51EE7F1C.9020506@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 2627a81253ee..c7f61cf5e43d 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -141,16 +141,8 @@ static u32 irq_to_gsi(int irq) } /* - * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, - * to map the target physical address. The problem is that set_fixmap() - * provides a single page, and it is possible that the page is not - * sufficient. - * By using this area, we can map up to MAX_IO_APICS pages temporarily, - * i.e. until the next __va_range() call. - * - * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* - * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and - * count idx down while incrementing the phys address. + * This is just a simple wrapper around early_ioremap(), + * with sanity checks for phys == 0 and size == 0. */ char *__init __acpi_map_table(unsigned long phys, unsigned long size) { @@ -160,6 +152,7 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size) return early_ioremap(phys, size); } + void __init __acpi_unmap_table(char *map, unsigned long size) { if (!map || !size) |