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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


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