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* [PATCH] net: x25: remove null checks on arrays calling_ae and called_ae
@ 2016-09-08  7:42 Colin King
  2016-09-10  1:15 ` David Miller
  0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2016-09-08  7:42 UTC (permalink / raw)
  To: Andrew Hendry, David S . Miller, linux-x25, netdev; +Cc: linux-kernel

From: Colin Ian King <colin.king@canonical.com>

dtefacs.calling_ae and called_ae are both 20 element __u8 arrays and
cannot be null and hence are redundant checks. Remove these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 net/x25/af_x25.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index a750f33..f83b74d 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1500,12 +1500,8 @@ out_fac_release:
 			goto out_dtefac_release;
 		if (dtefacs.calling_len > X25_MAX_AE_LEN)
 			goto out_dtefac_release;
-		if (dtefacs.calling_ae == NULL)
-			goto out_dtefac_release;
 		if (dtefacs.called_len > X25_MAX_AE_LEN)
 			goto out_dtefac_release;
-		if (dtefacs.called_ae == NULL)
-			goto out_dtefac_release;
 		x25->dte_facilities = dtefacs;
 		rc = 0;
 out_dtefac_release:
-- 
2.9.3

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] net: x25: remove null checks on arrays calling_ae and called_ae
  2016-09-08  7:42 [PATCH] net: x25: remove null checks on arrays calling_ae and called_ae Colin King
@ 2016-09-10  1:15 ` David Miller
  0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2016-09-10  1:15 UTC (permalink / raw)
  To: colin.king; +Cc: andrew.hendry, linux-x25, netdev, linux-kernel

From: Colin King <colin.king@canonical.com>
Date: Thu,  8 Sep 2016 08:42:06 +0100

> From: Colin Ian King <colin.king@canonical.com>
> 
> dtefacs.calling_ae and called_ae are both 20 element __u8 arrays and
> cannot be null and hence are redundant checks. Remove these.
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Indeed, and if they were pointers they would be in userspace and would
need proper uaccess handling.

Applied to net-next, thanks.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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