4.4-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit f11999987bc0b5559ab56dedc6f4ca32fab5438a ]
Clean the whole mac filter list when resetting after an intermediate
add or delete push to the firmware. The code had evolved from using
a list from the stack to a heap allocation, but the memset() didn't
follow the change correctly. This now cleans the whole list rather
that just part of the first element.
Change-ID: I4cd03d5a103b7407dd8556a3a231e800f2d6f2d5
Reported-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Shannon Nelson <shannon.nelson@xxxxxxxxx>
Tested-by: Andrew Bowers <andrewx.bowers@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1973,11 +1973,13 @@ int i40e_sync_vsi_filters(struct i40e_vs
/* Now process 'del_list' outside the lock */
if (!list_empty(&tmp_del_list)) {
+ int del_list_size;
+
filter_list_len = pf->hw.aq.asq_buf_size /
sizeof(struct i40e_aqc_remove_macvlan_element_data);
- del_list = kcalloc(filter_list_len,
- sizeof(struct i40e_aqc_remove_macvlan_element_data),
- GFP_KERNEL);
+ del_list_size = filter_list_len *
+ sizeof(struct i40e_aqc_remove_macvlan_element_data);
+ del_list = kzalloc(del_list_size, GFP_KERNEL);
if (!del_list) {
i40e_cleanup_add_list(&tmp_add_list);
@@ -2009,7 +2011,7 @@ int i40e_sync_vsi_filters(struct i40e_vs
NULL);
aq_err = pf->hw.aq.asq_last_status;
num_del = 0;
- memset(del_list, 0, sizeof(*del_list));
+ memset(del_list, 0, del_list_size);
if (ret && aq_err != I40E_AQ_RC_ENOENT)
dev_err(&pf->pdev->dev,
@@ -2042,13 +2044,14 @@ int i40e_sync_vsi_filters(struct i40e_vs
}
if (!list_empty(&tmp_add_list)) {
+ int add_list_size;
/* do all the adds now */
filter_list_len = pf->hw.aq.asq_buf_size /
sizeof(struct i40e_aqc_add_macvlan_element_data),
- add_list = kcalloc(filter_list_len,
- sizeof(struct i40e_aqc_add_macvlan_element_data),
- GFP_KERNEL);
+ add_list_size = filter_list_len *
+ sizeof(struct i40e_aqc_add_macvlan_element_data);
+ add_list = kzalloc(add_list_size, GFP_KERNEL);
if (!add_list) {
/* Purge element from temporary lists */
i40e_cleanup_add_list(&tmp_add_list);
@@ -2086,7 +2089,7 @@ int i40e_sync_vsi_filters(struct i40e_vs
if (ret)
break;
- memset(add_list, 0, sizeof(*add_list));
+ memset(add_list, 0, add_list_size);
}
/* Entries from tmp_add_list were cloned from MAC
* filter list, hence clean those cloned entries
--
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