scsi: ufs: Simplify statements that return a boolean

Convert "if (expr) return true; else return false;" into "return expr;" if
either 'expr' is a boolean expression or the return type of the function is
'bool'.

Link: https://lore.kernel.org/r/20220419225811.4127248-5-bvanassche@acm.orgTested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs-qcom.h

@@ -239,10 +239,7 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host);
 
 static inline bool ufs_qcom_cap_qunipro(struct ufs_qcom_host *host)
 {
-	if (host->caps & UFS_QCOM_CAP_QUNIPRO)
-		return true;
-	else
-		return false;
+	return host->caps & UFS_QCOM_CAP_QUNIPRO;
 }
 
 /* ufs-qcom-ice.c */

drivers/scsi/ufs/ufshcd.c

@@ -939,10 +939,7 @@ static bool ufshcd_is_unipro_pa_params_tuning_req(struct ufs_hba *hba)
 	 * logic simple, we will only do manual tuning if local unipro version
 	 * doesn't support ver1.6 or later.
 	 */
-	if (ufshcd_get_local_unipro_ver(hba) < UFS_UNIPRO_VER_1_6)
-		return true;
-	else
-		return false;
+	return ufshcd_get_local_unipro_ver(hba) < UFS_UNIPRO_VER_1_6;
 }
 
 /**
@@ -2216,10 +2213,7 @@ static inline int ufshcd_hba_capabilities(struct ufs_hba *hba)
  */
 static inline bool ufshcd_ready_for_uic_cmd(struct ufs_hba *hba)
 {
-	if (ufshcd_readl(hba, REG_CONTROLLER_STATUS) & UIC_COMMAND_READY)
-		return true;
-	else
-		return false;
+	return ufshcd_readl(hba, REG_CONTROLLER_STATUS) & UIC_COMMAND_READY;
 }
 
 /**
@@ -5781,10 +5775,7 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
 		return false;
 	}
 	/* Let it continue to flush when available buffer exceeds threshold */
-	if (avail_buf < hba->vps->wb_flush_threshold)
-		return true;
-
-	return false;
+	return avail_buf < hba->vps->wb_flush_threshold;
 }
 
 static void ufshcd_wb_force_disable(struct ufs_hba *hba)
@@ -5863,11 +5854,8 @@ static bool ufshcd_wb_need_flush(struct ufs_hba *hba)
 		return false;
 	}
 
-	if (!hba->dev_info.b_presrv_uspc_en) {
-		if (avail_buf <= UFS_WB_BUF_REMAIN_PERCENT(10))
-			return true;
-		return false;
-	}
+	if (!hba->dev_info.b_presrv_uspc_en)
+		return avail_buf <= UFS_WB_BUF_REMAIN_PERCENT(10);
 
 	return ufshcd_wb_presrv_usrspc_keep_vcc_on(hba, avail_buf);
 }

drivers/scsi/ufs/ufshpb.c

@@ -90,12 +90,8 @@ static bool ufshpb_is_general_lun(int lun)
 
 static bool ufshpb_is_pinned_region(struct ufshpb_lu *hpb, int rgn_idx)
 {
-	if (hpb->lu_pinned_end != PINNED_NOT_SET &&
-	    rgn_idx >= hpb->lu_pinned_start &&
-	    rgn_idx <= hpb->lu_pinned_end)
-		return true;
-
-	return false;
+	return hpb->lu_pinned_end != PINNED_NOT_SET &&
+	       rgn_idx >= hpb->lu_pinned_start && rgn_idx <= hpb->lu_pinned_end;
 }
 
 static void ufshpb_kick_map_work(struct ufshpb_lu *hpb)