On 2016-02-23 8:56 PM, Zheng, Wu wrote:
Hi,
Can the maintainer of linux-yocto have a look for the patch?
It helps if you cc' me directly, since I can easily miss these
otherwise.
It looks reasonable, but do you have a link to the usptream
submission of the patch ? I'd like to have that in the commit
header, so I can drop it when uprev'ing the kernel in the
future.
Having that link, means I can easily track its progress.
Bruce
Any comments?
Thanks.
Best Regards
Zheng Wu
-----Original Message-----
From: Zheng, Wu
Sent: Friday, February 19, 2016 2:36 PM
To: linux-yocto@yoctoproject.org
Cc: Zheng, Wu <wu.zh...@intel.com>; Coelho, Luciano
<luciano.coe...@intel.com>; Grumbach, Emmanuel
<emmanuel.grumb...@intel.com>
Subject: [PATCH] iwlwifi: mvm: don't allow sched scans without matches to be
started
The firmware can perform a scheduled scan with not matchsets passed, but it
can't send notification that results were found. Since the userspace then
cannot know when we got new results and the firmware wouldn't trigger a wake
in case we are sleeping, it's better not to allow scans without matchsets.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=110831
upstream status: in the process of merging
Signed-off-by: Luca Coelho <luciano.coe...@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumb...@intel.com>
Signed-off-by: Wu Zheng <wu.zh...@intel.com>
---
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 9779c1e..90e8b66 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2797,6 +2797,10 @@ static int iwl_mvm_mac_sched_scan_start(struct
ieee80211_hw *hw,
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
int ret;
+ /* we don't support "match all" in the firmware */
+ if (!req->n_match_sets)
+ return -EOPNOTSUPP;
+
if (!(mvm->fw->ucode_capa.capa[0] &
IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
if (ret)
--
2.1.4
--
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