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authorTomas Winkler <tomas.winkler@intel.com>2018-03-06 11:34:15 +0200
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-03-23 10:18:06 +0200
commit09b17f321c15879833bbe072cf28e3f0625d3fb7 (patch)
tree335c67c9e6da089c6c3e3839cf5525816333d3fe /drivers/char
parent62c09e12bbf887d01397323888d5fe89a215a7e2 (diff)
downloadop-kernel-dev-09b17f321c15879833bbe072cf28e3f0625d3fb7.zip
op-kernel-dev-09b17f321c15879833bbe072cf28e3f0625d3fb7.tar.gz
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>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/tpm/tpm_crb.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 497edd9..7f78482 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));
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