From: Leon Romanovsky <leonro@mellanox.com>
Date: Wed, 21 Feb 2018 18:12:31 +0200
Subject: RDMA/uverbs: Convert command mask validity check function to be bool
Patch-mainline: v4.17-rc1
Git-commit: b5bc59818614a9d6d1fa2347b14dd52c4774fb70
References: bsc#1103992 FATE#326009

The function validate_command_mask() returns only two results: success
or failure, so convert it to return bool instead of 0 and -1.

Reported-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/uverbs_main.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -635,7 +635,7 @@ err_put_refs:
 	return filp;
 }
 
-static int verify_command_mask(struct ib_device *ib_dev, __u32 command)
+static bool verify_command_mask(struct ib_device *ib_dev, __u32 command)
 {
 	u64 mask;
 
@@ -645,9 +645,9 @@ static int verify_command_mask(struct ib
 		mask = ib_dev->uverbs_ex_cmd_mask;
 
 	if (mask & ((u64)1 << command))
-		return 0;
+		return true;
 
-	return -1;
+	return false;
 }
 
 static bool verify_command_idx(u32 command, bool extended)
@@ -706,7 +706,7 @@ static ssize_t ib_uverbs_write(struct fi
 		goto out;
 	}
 
-	if (verify_command_mask(ib_dev, command)) {
+	if (!verify_command_mask(ib_dev, command)) {
 		ret = -EOPNOTSUPP;
 		goto out;
 	}