On 09/23/14 01:08, Emil Goode wrote:
Hello Arend,
Sorry for the late reply. I have attached a kernel log with brcmfmac
debugging enabled (without my patch applied).
Let me know if I can provide any other useful information.
No problem, Emil
I was wondering what was returned on "chanspecs" query. So 17 channel
configs which is expected.
Regards,
Arend
Best regards,
Emil
On Mon, Sep 22, 2014 at 11:56:43AM +0200, Arend van Spriel wrote:
On 09/21/14 00:58, Emil Goode wrote:
In the brcmf_count_20mhz_channels function we are looping through a list
of channels received from firmware. Since the index of the first channel
is 0 the condition leads to an off by one bug. This is causing us to hit
the WARN_ON_ONCE(1) calls in the brcmu_d11n_decchspec function, which is
how I discovered the bug.
The fix is fine. Would like to know what exactly is going wrong. Can you
provide a kernel log with brcmfmac debugging enabled, ie. insmod brcmfmac.ko
debug=0x1416
Regards,
Arend
Introduced by:
commit b48d891676f756d48b4d0ee131e4a7a5d43ca417
("brcmfmac: rework wiphy structure setup")
Signed-off-by: Emil Goode<emilgoode@xxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 02fe706..93b5dd9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -4918,7 +4918,7 @@ static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
struct brcmu_chan ch;
int i;
- for (i = 0; i<= total; i++) {
+ for (i = 0; i< total; i++) {
ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
cfg->d11inf.decchspec(&ch);
--
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