From: Zhang Yanfei Date: Tue, 23 Jul 2013 13:03:24 +0000 (+0800) Subject: x86/acpi: Correct out-of-date comment of __acpi_map_table() X-Git-Tag: v3.12-rc1~155^2 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=45f1330af6819b348fbac89e69d59d8129d61960;p=linux.git x86/acpi: Correct out-of-date comment of __acpi_map_table() The implementation of function __acpi_map_table() has been changed long time ago, and now it directly invokes early_ioremap() to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 So correct its out-of-date comment.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 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 --- 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)