Messages in this thread Patch in this message | | | Date | Thu, 30 Aug 2012 09:38:41 -0500 | From | Kent Yoder <> | 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. Cast it back later when used in a memcpy to avoid the same sparse warning there.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> --- drivers/char/tpm/tpm_acpi.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index fe3fa94..36bdcfa 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(log->bios_event_log, (void *)virt, len); acpi_os_unmap_memory(virt, len); return 0; -- 1.7.5.4
| |