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authorPetr Machata <petrm@nvidia.com>2021-04-20 16:53:40 +0200
committerDavid S. Miller <davem@davemloft.net>2021-04-20 16:43:13 -0700
commit290fe2c595fbf9b9099a93528d6f85d3d7d21fa4 (patch)
tree0c62077aee368e04ccd08a0bcae2c0f2f15d2e33 /drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
parent17c0e6d1757f01ce54c7dee19396053d721ca006 (diff)
downloadlinux-290fe2c595fbf9b9099a93528d6f85d3d7d21fa4.tar.bz2
mlxsw: spectrum_qdisc: Simplify mlxsw_sp_qdisc_compare()
The purpose of this function is to filter out events that are related to qdiscs that are not offloaded, or are not offloaded anymore. But the function is unnecessarily thorough: - mlxsw_sp_qdisc pointer is never NULL in the context where it is called - Two qdiscs with the same handle will never have different types. Even when replacing one qdisc with another in the same class, Linux will not permit handle reuse unless the qdisc type also matches. Simplify the function by omitting these two unnecessary conditions. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
index 644ffc021abe..013398ecd15b 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
@@ -87,12 +87,9 @@ struct mlxsw_sp_qdisc_state {
};
static bool
-mlxsw_sp_qdisc_compare(struct mlxsw_sp_qdisc *mlxsw_sp_qdisc, u32 handle,
- enum mlxsw_sp_qdisc_type type)
+mlxsw_sp_qdisc_compare(struct mlxsw_sp_qdisc *mlxsw_sp_qdisc, u32 handle)
{
- return mlxsw_sp_qdisc && mlxsw_sp_qdisc->ops &&
- mlxsw_sp_qdisc->ops->type == type &&
- mlxsw_sp_qdisc->handle == handle;
+ return mlxsw_sp_qdisc->ops && mlxsw_sp_qdisc->handle == handle;
}
static struct mlxsw_sp_qdisc *
@@ -579,8 +576,7 @@ int mlxsw_sp_setup_tc_red(struct mlxsw_sp_port *mlxsw_sp_port,
&mlxsw_sp_qdisc_ops_red,
&p->set);
- if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle,
- MLXSW_SP_QDISC_RED))
+ if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle))
return -EOPNOTSUPP;
switch (p->command) {
@@ -780,8 +776,7 @@ int mlxsw_sp_setup_tc_tbf(struct mlxsw_sp_port *mlxsw_sp_port,
&mlxsw_sp_qdisc_ops_tbf,
&p->replace_params);
- if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle,
- MLXSW_SP_QDISC_TBF))
+ if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle))
return -EOPNOTSUPP;
switch (p->command) {
@@ -886,8 +881,7 @@ int mlxsw_sp_setup_tc_fifo(struct mlxsw_sp_port *mlxsw_sp_port,
&mlxsw_sp_qdisc_ops_fifo, NULL);
}
- if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle,
- MLXSW_SP_QDISC_FIFO))
+ if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle))
return -EOPNOTSUPP;
switch (p->command) {
@@ -1247,8 +1241,7 @@ int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
&mlxsw_sp_qdisc_ops_prio,
&p->replace_params);
- if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle,
- MLXSW_SP_QDISC_PRIO))
+ if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle))
return -EOPNOTSUPP;
switch (p->command) {
@@ -1280,8 +1273,7 @@ int mlxsw_sp_setup_tc_ets(struct mlxsw_sp_port *mlxsw_sp_port,
&mlxsw_sp_qdisc_ops_ets,
&p->replace_params);
- if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle,
- MLXSW_SP_QDISC_ETS))
+ if (!mlxsw_sp_qdisc_compare(mlxsw_sp_qdisc, p->handle))
return -EOPNOTSUPP;
switch (p->command) {