Hi,
Stanse found an atomic error in reg_copy_regd:
static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
const struct ieee80211_regdomain *src_regd)
{
struct ieee80211_regdomain *regd;
int size_of_regd = 0;
unsigned int i;
size_of_regd = sizeof(struct ieee80211_regdomain) +
((src_regd->n_reg_rules + 1) * sizeof(struct
ieee80211_reg_rule));
regd = kzalloc(size_of_regd, GFP_KERNEL); <---- here
Called from:
static void reg_regdb_search(struct work_struct *work)
{
spin_lock(®_regdb_search_lock);
while (!list_empty(®_regdb_search_list)) {
...
for (i=0; i<reg_regdb_size; i++) {
curdom = reg_regdb[i];
if (!memcmp(request->alpha2, curdom->alpha2, 2)) {
r = reg_copy_regd(®dom, curdom);
...
spin_unlock(®_regdb_search_lock);
}
Whole error temporarily available at:
http://decibel.fi.muni.cz/~xslaby/stanse/error.cgi?db=34-rc&id=578
It is introduced by 3b377ea9d4efc94dc52fe41b4dfdb463635ab298.
Do you plan to extend it somehow or may the spinlock be converted to
mutex? If not how much may size_of_regd be -- can we safely switch to
GFP_ATOMIC?
--
js
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