tpm_crb: use __le64 annotated variable for response buffer address

use __le64 annotated variable for response buffer address as this is
read in little endian format form the register.

This suppresses sparse warning
drivers/char/tpm/tpm_crb.c:558:18: warning: cast to restricted __le64

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 497edd9848cd..7f78482cd157 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -471,6 +471,7 @@ static int crb_map_io(struct acpi_device *device, struct crb_priv *priv,
         u32 pa_high, pa_low;
         u64 cmd_pa;
         u32 cmd_size;
+        __le64 __rsp_pa;
         u64 rsp_pa;
         u32 rsp_size;
         int ret;
@@ -536,8 +537,8 @@ static int crb_map_io(struct acpi_device *device, struct crb_priv *priv,
                 goto out;
         }
 
-        memcpy_fromio(&rsp_pa, &priv->regs_t->ctrl_rsp_pa, 8);
-        rsp_pa = le64_to_cpu(rsp_pa);
+        memcpy_fromio(&__rsp_pa, &priv->regs_t->ctrl_rsp_pa, 8);
+        rsp_pa = le64_to_cpu(__rsp_pa);
         rsp_size = crb_fixup_cmd_size(dev, &io_res, rsp_pa,
                                       ioread32(&priv->regs_t->ctrl_rsp_size));