Merge tag 'gcc-plugins-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / drivers / net / wireless / intel / iwlwifi / mvm / fw.c

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index dade206..2ba8904 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -893,7 +893,7 @@ static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm)
        IWL_DEBUG_RADIO(mvm, "Sending GEO_TX_POWER_LIMIT\n");
 
        BUILD_BUG_ON(ACPI_NUM_GEO_PROFILES * ACPI_WGDS_NUM_BANDS *
-                    ACPI_WGDS_TABLE_SIZE !=  ACPI_WGDS_WIFI_DATA_SIZE);
+                    ACPI_WGDS_TABLE_SIZE + 1 !=  ACPI_WGDS_WIFI_DATA_SIZE);
 
        BUILD_BUG_ON(ACPI_NUM_GEO_PROFILES > IWL_NUM_GEO_PROFILES);
 
@@ -928,6 +928,11 @@ static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm)
        return -ENOENT;
 }
 
+static int iwl_mvm_sar_get_wgds_table(struct iwl_mvm *mvm)
+{
+       return -ENOENT;
+}
+
 static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm)
 {
        return 0;
@@ -954,8 +959,11 @@ static int iwl_mvm_sar_init(struct iwl_mvm *mvm)
                IWL_DEBUG_RADIO(mvm,
                                "WRDS SAR BIOS table invalid or unavailable. (%d)\n",
                                ret);
-               /* if not available, don't fail and don't bother with EWRD */
-               return 0;
+               /*
+                * If not available, don't fail and don't bother with EWRD.
+                * Return 1 to tell that we can't use WGDS either.
+                */
+               return 1;
        }
 
        ret = iwl_mvm_sar_get_ewrd_table(mvm);
@@ -968,9 +976,13 @@ static int iwl_mvm_sar_init(struct iwl_mvm *mvm)
        /* choose profile 1 (WRDS) as default for both chains */
        ret = iwl_mvm_sar_select_profile(mvm, 1, 1);
 
-       /* if we don't have profile 0 from BIOS, just skip it */
+       /*
+        * If we don't have profile 0 from BIOS, just skip it.  This
+        * means that SAR Geo will not be enabled either, even if we
+        * have other valid profiles.
+        */
        if (ret == -ENOENT)
-               return 0;
+               return 1;
 
        return ret;
 }
@@ -1168,11 +1180,19 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
                iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
 
        ret = iwl_mvm_sar_init(mvm);
-       if (ret)
-               goto error;
+       if (ret == 0) {
+               ret = iwl_mvm_sar_geo_init(mvm);
+       } else if (ret > 0 && !iwl_mvm_sar_get_wgds_table(mvm)) {
+               /*
+                * If basic SAR is not available, we check for WGDS,
+                * which should *not* be available either.  If it is
+                * available, issue an error, because we can't use SAR
+                * Geo without basic SAR.
+                */
+               IWL_ERR(mvm, "BIOS contains WGDS but no WRDS\n");
+       }
 
-       ret = iwl_mvm_sar_geo_init(mvm);
-       if (ret)
+       if (ret < 0)
                goto error;
 
        iwl_mvm_leds_sync(mvm);