This is a note to let you know that I've just added the patch titled
ice: remove null checks before devm_kfree() calls
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ice-remove-null-checks-before-devm_kfree-calls.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c908676f50d4457e368abf6f34c9bd3aac6d1bef
Author: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
Date: Wed May 31 14:38:40 2023 +0200
ice: remove null checks before devm_kfree() calls
[ Upstream commit ad667d626825383b626ad6ed38d6205618abb115 ]
We all know they are redundant.
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@xxxxxxxxxxxxxxx>
Reviewed-by: Michal Wilczynski <michal.wilczynski@xxxxxxxxx>
Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
Tested-by: Arpana Arland <arpanax.arland@xxxxxxxxx> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Stable-dep-of: adbf5a42341f ("ice: remove af_xdp_zc_qps bitmap")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index e2e661010176c..419052ebc3ae7 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -789,8 +789,7 @@ static void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw)
devm_kfree(ice_hw_to_dev(hw), lst_itr);
}
}
- if (recps[i].root_buf)
- devm_kfree(ice_hw_to_dev(hw), recps[i].root_buf);
+ devm_kfree(ice_hw_to_dev(hw), recps[i].root_buf);
}
ice_rm_all_sw_replay_rule_info(hw);
devm_kfree(ice_hw_to_dev(hw), sw->recp_list);
@@ -986,8 +985,7 @@ static int ice_cfg_fw_log(struct ice_hw *hw, bool enable)
}
out:
- if (data)
- devm_kfree(ice_hw_to_dev(hw), data);
+ devm_kfree(ice_hw_to_dev(hw), data);
return status;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_controlq.c b/drivers/net/ethernet/intel/ice/ice_controlq.c
index 6bcfee2959915..f68df8e05b18e 100644
--- a/drivers/net/ethernet/intel/ice/ice_controlq.c
+++ b/drivers/net/ethernet/intel/ice/ice_controlq.c
@@ -339,8 +339,7 @@ do { \
} \
} \
/* free the buffer info list */ \
- if ((qi)->ring.cmd_buf) \
- devm_kfree(ice_hw_to_dev(hw), (qi)->ring.cmd_buf); \
+ devm_kfree(ice_hw_to_dev(hw), (qi)->ring.cmd_buf); \
/* free DMA head */ \
devm_kfree(ice_hw_to_dev(hw), (qi)->ring.dma_head); \
} while (0)
diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c
index ef103e47a8dc2..85cca572c22a5 100644
--- a/drivers/net/ethernet/intel/ice/ice_flow.c
+++ b/drivers/net/ethernet/intel/ice/ice_flow.c
@@ -1303,23 +1303,6 @@ ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
return NULL;
}
-/**
- * ice_dealloc_flow_entry - Deallocate flow entry memory
- * @hw: pointer to the HW struct
- * @entry: flow entry to be removed
- */
-static void
-ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
-{
- if (!entry)
- return;
-
- if (entry->entry)
- devm_kfree(ice_hw_to_dev(hw), entry->entry);
-
- devm_kfree(ice_hw_to_dev(hw), entry);
-}
-
/**
* ice_flow_rem_entry_sync - Remove a flow entry
* @hw: pointer to the HW struct
@@ -1335,7 +1318,8 @@ ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk,
list_del(&entry->l_entry);
- ice_dealloc_flow_entry(hw, entry);
+ devm_kfree(ice_hw_to_dev(hw), entry->entry);
+ devm_kfree(ice_hw_to_dev(hw), entry);
return 0;
}
@@ -1662,8 +1646,7 @@ ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
out:
if (status && e) {
- if (e->entry)
- devm_kfree(ice_hw_to_dev(hw), e->entry);
+ devm_kfree(ice_hw_to_dev(hw), e->entry);
devm_kfree(ice_hw_to_dev(hw), e);
}
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index cc6c04a69b285..cd161c03c5e39 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -320,31 +320,19 @@ static void ice_vsi_free_arrays(struct ice_vsi *vsi)
dev = ice_pf_to_dev(pf);
- if (vsi->af_xdp_zc_qps) {
- bitmap_free(vsi->af_xdp_zc_qps);
- vsi->af_xdp_zc_qps = NULL;
- }
+ bitmap_free(vsi->af_xdp_zc_qps);
+ vsi->af_xdp_zc_qps = NULL;
/* free the ring and vector containers */
- if (vsi->q_vectors) {
- devm_kfree(dev, vsi->q_vectors);
- vsi->q_vectors = NULL;
- }
- if (vsi->tx_rings) {
- devm_kfree(dev, vsi->tx_rings);
- vsi->tx_rings = NULL;
- }
- if (vsi->rx_rings) {
- devm_kfree(dev, vsi->rx_rings);
- vsi->rx_rings = NULL;
- }
- if (vsi->txq_map) {
- devm_kfree(dev, vsi->txq_map);
- vsi->txq_map = NULL;
- }
- if (vsi->rxq_map) {
- devm_kfree(dev, vsi->rxq_map);
- vsi->rxq_map = NULL;
- }
+ devm_kfree(dev, vsi->q_vectors);
+ vsi->q_vectors = NULL;
+ devm_kfree(dev, vsi->tx_rings);
+ vsi->tx_rings = NULL;
+ devm_kfree(dev, vsi->rx_rings);
+ vsi->rx_rings = NULL;
+ devm_kfree(dev, vsi->txq_map);
+ vsi->txq_map = NULL;
+ devm_kfree(dev, vsi->rxq_map);
+ vsi->rxq_map = NULL;
}
/**
@@ -787,10 +775,8 @@ static void ice_rss_clean(struct ice_vsi *vsi)
dev = ice_pf_to_dev(pf);
- if (vsi->rss_hkey_user)
- devm_kfree(dev, vsi->rss_hkey_user);
- if (vsi->rss_lut_user)
- devm_kfree(dev, vsi->rss_lut_user);
+ devm_kfree(dev, vsi->rss_hkey_user);
+ devm_kfree(dev, vsi->rss_lut_user);
ice_vsi_clean_rss_flow_fld(vsi);
/* remove RSS replay list */
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 88e74835d0274..849b6c7f0506b 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -353,10 +353,7 @@ void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node)
node->sibling;
}
- /* leaf nodes have no children */
- if (node->children)
- devm_kfree(ice_hw_to_dev(hw), node->children);
-
+ devm_kfree(ice_hw_to_dev(hw), node->children);
kfree(node->name);
xa_erase(&pi->sched_node_ids, node->id);
devm_kfree(ice_hw_to_dev(hw), node);
@@ -854,10 +851,8 @@ void ice_sched_cleanup_all(struct ice_hw *hw)
if (!hw)
return;
- if (hw->layer_info) {
- devm_kfree(ice_hw_to_dev(hw), hw->layer_info);
- hw->layer_info = NULL;
- }
+ devm_kfree(ice_hw_to_dev(hw), hw->layer_info);
+ hw->layer_info = NULL;
ice_sched_clear_port(hw->port_info);
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 46b36851af460..5ea6365872571 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -1636,21 +1636,16 @@ ice_save_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi)
*/
static void ice_clear_vsi_q_ctx(struct ice_hw *hw, u16 vsi_handle)
{
- struct ice_vsi_ctx *vsi;
+ struct ice_vsi_ctx *vsi = ice_get_vsi_ctx(hw, vsi_handle);
u8 i;
- vsi = ice_get_vsi_ctx(hw, vsi_handle);
if (!vsi)
return;
ice_for_each_traffic_class(i) {
- if (vsi->lan_q_ctx[i]) {
- devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]);
- vsi->lan_q_ctx[i] = NULL;
- }
- if (vsi->rdma_q_ctx[i]) {
- devm_kfree(ice_hw_to_dev(hw), vsi->rdma_q_ctx[i]);
- vsi->rdma_q_ctx[i] = NULL;
- }
+ devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]);
+ vsi->lan_q_ctx[i] = NULL;
+ devm_kfree(ice_hw_to_dev(hw), vsi->rdma_q_ctx[i]);
+ vsi->rdma_q_ctx[i] = NULL;
}
}
@@ -5525,9 +5520,7 @@ ice_add_adv_recipe(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups,
devm_kfree(ice_hw_to_dev(hw), fvit);
}
- if (rm->root_buf)
- devm_kfree(ice_hw_to_dev(hw), rm->root_buf);
-
+ devm_kfree(ice_hw_to_dev(hw), rm->root_buf);
kfree(rm);
err_free_lkup_exts:
