* [PATCH] mlx5: ensure 0 is returned when vport is zero
@ 2017-08-18 13:49 Colin King
2017-08-18 16:02 ` Leon Romanovsky
[not found] ` <20170818134925.16604-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
0 siblings, 2 replies; 5+ messages in thread
From: Colin King @ 2017-08-18 13:49 UTC (permalink / raw)
To: Saeed Mahameed, Matan Barak, Leon Romanovsky, netdev, linux-rdma
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
Currently, if vport is zero then then an uninialized return status
in err is returned. Since the only return status at the end of the
function esw_add_uc_addr is zero for the current set of return paths
we may as well just return 0 rather than err to fix this issue.
Detected by CoverityScan, CID#1452698 ("Uninitialized scalar variable")
Fixes: eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 6d9fb6ac6e9b..c77f4c0c7769 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -401,7 +401,7 @@ static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
vport, mac, vaddr->flow_rule);
- return err;
+ return 0;
}
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
--
2.11.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH] mlx5: ensure 0 is returned when vport is zero
@ 2017-08-18 15:25 Colin King
[not found] ` <20170818152550.18358-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
0 siblings, 1 reply; 5+ messages in thread
From: Colin King @ 2017-08-18 15:25 UTC (permalink / raw)
To: Saeed Mahameed, Matan Barak, Leon Romanovsky,
netdev-u79uwXL29TY76Z2rM5mHXA, linux-rdma-u79uwXL29TY76Z2rM5mHXA
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA
From: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Currently, if vport is zero then then an uninialized return status
in err is returned. Since the only return status at the end of the
function esw_add_uc_addr is zero for the current set of return paths
we may as well just return 0 rather than err to fix this issue.
Detected by CoverityScan, CID#1452698 ("Uninitialized scalar variable")
Fixes: eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
Signed-off-by: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
---
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 6d9fb6ac6e9b..c77f4c0c7769 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -401,7 +401,7 @@ static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
vport, mac, vaddr->flow_rule);
- return err;
+ return 0;
}
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
--
2.11.0
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] mlx5: ensure 0 is returned when vport is zero
[not found] ` <20170818152550.18358-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
@ 2017-08-18 15:27 ` Colin Ian King
0 siblings, 0 replies; 5+ messages in thread
From: Colin Ian King @ 2017-08-18 15:27 UTC (permalink / raw)
To: Saeed Mahameed, Matan Barak, Leon Romanovsky,
netdev-u79uwXL29TY76Z2rM5mHXA, linux-rdma-u79uwXL29TY76Z2rM5mHXA
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA
On 18/08/17 16:25, Colin King wrote:
> From: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
>
> Currently, if vport is zero then then an uninialized return status
> in err is returned. Since the only return status at the end of the
> function esw_add_uc_addr is zero for the current set of return paths
> we may as well just return 0 rather than err to fix this issue.
>
> Detected by CoverityScan, CID#1452698 ("Uninitialized scalar variable")
>
> Fixes: eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
> Signed-off-by: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> ---
> drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> index 6d9fb6ac6e9b..c77f4c0c7769 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> @@ -401,7 +401,7 @@ static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
> esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
> vport, mac, vaddr->flow_rule);
>
> - return err;
> + return 0;
> }
>
> static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
>
Apologies, I accidentally re-sent this by mistake.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] mlx5: ensure 0 is returned when vport is zero
2017-08-18 13:49 [PATCH] mlx5: ensure 0 is returned when vport is zero Colin King
@ 2017-08-18 16:02 ` Leon Romanovsky
[not found] ` <20170818134925.16604-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
1 sibling, 0 replies; 5+ messages in thread
From: Leon Romanovsky @ 2017-08-18 16:02 UTC (permalink / raw)
To: Colin King
Cc: Saeed Mahameed, Matan Barak, netdev, linux-rdma, kernel-janitors,
linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1384 bytes --]
On Fri, Aug 18, 2017 at 02:49:25PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> Currently, if vport is zero then then an uninialized return status
> in err is returned. Since the only return status at the end of the
> function esw_add_uc_addr is zero for the current set of return paths
> we may as well just return 0 rather than err to fix this issue.
>
> Detected by CoverityScan, CID#1452698 ("Uninitialized scalar variable")
>
> Fixes: eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> index 6d9fb6ac6e9b..c77f4c0c7769 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
> @@ -401,7 +401,7 @@ static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
> esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
> vport, mac, vaddr->flow_rule);
>
> - return err;
> + return 0;
> }
>
I personally prefer initialization of "err" to zero, but this solution
is fine enough too.
Thanks,
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] mlx5: ensure 0 is returned when vport is zero
[not found] ` <20170818134925.16604-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
@ 2017-08-18 23:29 ` David Miller
0 siblings, 0 replies; 5+ messages in thread
From: David Miller @ 2017-08-18 23:29 UTC (permalink / raw)
To: colin.king-Z7WLFzj8eWMS+FvcfC7Uqw
Cc: saeedm-VPRAkNaXOzVWk0Htik3J/w, matanb-VPRAkNaXOzVWk0Htik3J/w,
leonro-VPRAkNaXOzVWk0Htik3J/w, netdev-u79uwXL29TY76Z2rM5mHXA,
linux-rdma-u79uwXL29TY76Z2rM5mHXA,
kernel-janitors-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
From: Colin King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Date: Fri, 18 Aug 2017 14:49:25 +0100
> From: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
>
> Currently, if vport is zero then then an uninialized return status
> in err is returned. Since the only return status at the end of the
> function esw_add_uc_addr is zero for the current set of return paths
> we may as well just return 0 rather than err to fix this issue.
>
> Detected by CoverityScan, CID#1452698 ("Uninitialized scalar variable")
>
> Fixes: eeb66cdb6826 ("net/mlx5: Separate between E-Switch and MPFS")
> Signed-off-by: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Applied to net-next, thanks.
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2017-08-18 13:49 [PATCH] mlx5: ensure 0 is returned when vport is zero Colin King
2017-08-18 16:02 ` Leon Romanovsky
[not found] ` <20170818134925.16604-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2017-08-18 23:29 ` David Miller
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2017-08-18 15:25 Colin King
[not found] ` <20170818152550.18358-1-colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2017-08-18 15:27 ` Colin Ian King
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