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ACPI: sysfs: Make sparse happy about address space in use 

Sparse is not happy about address space in use in acpi_data_show():

drivers/acpi/sysfs.c:428:14: warning: incorrect type in assignment (different address spaces)
drivers/acpi/sysfs.c:428:14:    expected void [noderef] __iomem *base
drivers/acpi/sysfs.c:428:14:    got void *
drivers/acpi/sysfs.c:431:59: warning: incorrect type in argument 4 (different address spaces)
drivers/acpi/sysfs.c:431:59:    expected void const *from
drivers/acpi/sysfs.c:431:59:    got void [noderef] __iomem *base
drivers/acpi/sysfs.c:433:30: warning: incorrect type in argument 1 (different address spaces)
drivers/acpi/sysfs.c:433:30:    expected void *logical_address
drivers/acpi/sysfs.c:433:30:    got void [noderef] __iomem *base

Indeed, acpi_os_map_memory() returns a void pointer with dropped specific
address space. Hence, we don't need to carry out __iomem in acpi_data_show().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2021-06-16 20:03:32 +03:00 committed by Rafael J. Wysocki
parent 6f2f92c6ae
commit bdd56d7d89
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/sysfs.c
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@ -420,7 +420,7 @@ static ssize_t acpi_data_show(struct file *filp, struct kobject *kobj,
loff_t offset, size_t count) loff_t offset, size_t count)
{ {
struct acpi_data_attr *data_attr; struct acpi_data_attr *data_attr;
void __iomem *base; void *base;
ssize_t rc; ssize_t rc;
data_attr = container_of(bin_attr, struct acpi_data_attr, attr); data_attr = container_of(bin_attr, struct acpi_data_attr, attr);