Remove a useless constant that slipped through me when I did the code
review. This commit fixes the issue.
Cc: Jiandi An <anjiandi@codeaurora.org>
Fixes: 69c558de63c7 ("tpm/tpm_crb: Enable TPM CRB interface for ARM64")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
                                ACPI_TPM2_COMMAND_BUFFER_WITH_SMC);
                        return -EINVAL;
                }
-               crb_smc = ACPI_ADD_PTR(struct tpm2_crb_smc, buf,
-                                      ACPI_TPM2_START_METHOD_PARAMETER_OFFSET);
+               crb_smc = ACPI_ADD_PTR(struct tpm2_crb_smc, buf, sizeof(*buf));
                priv->smc_func_id = crb_smc->smc_func_id;
                priv->flags |= CRB_FL_CRB_SMC_START;
        }
 
 #define ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD  8
 #define ACPI_TPM2_COMMAND_BUFFER_WITH_SMC          11
 
-#define ACPI_TPM2_START_METHOD_PARAMETER_OFFSET    52
-
 /*******************************************************************************
  *
  * UEFI - UEFI Boot optimization Table