From a40695edad6a69561b299272028c172e2d981666 Mon Sep 17 00:00:00 2001 From: Kent Yoder Date: Tue, 4 Sep 2012 11:18:21 -0500 Subject: [PATCH] tpm: fix tpm_acpi sparse warning on different address spaces acpi_os_map_memory expects its return value to be in the __iomem address space. Tag the variable we're using as such and use memcpy_fromio to avoid further sparse warnings. Signed-off-by: Kent Yoder Signed-off-by: James Morris --- drivers/char/tpm/tpm_acpi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index fe3fa9431dc9..56051d0c97a2 100644 --- a/drivers/char/tpm/tpm_acpi.c +++ b/drivers/char/tpm/tpm_acpi.c @@ -49,7 +49,7 @@ int read_log(struct tpm_bios_log *log) { struct acpi_tcpa *buff; acpi_status status; - struct acpi_table_header *virt; + void __iomem *virt; u64 len, start; if (log->bios_event_log != NULL) { @@ -102,7 +102,7 @@ int read_log(struct tpm_bios_log *log) return -EIO; } - memcpy(log->bios_event_log, virt, len); + memcpy_fromio(log->bios_event_log, virt, len); acpi_os_unmap_memory(virt, len); return 0; -- 2.30.2