lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 27 Jan 2014 07:20:16 +0530
From:	Sujith Manoharan <>
To:	Josh Boyer <>
Cc:	"John W. Linville" <>,
	<>, netdev <>,
	"Linux-Kernel\@Vger. Kernel. Org" <>
Subject: Re: ath9k ARM build error with v3.13-8330-g4ba9920

Josh Boyer wrote:
> adds a udelay(10000) call to the ath9k driver.  This will cause a
> build error on various ARM configs because the value passed to udelay
> is too large:
> ERROR: "__bad_udelay" [drivers/net/wireless/ath/ath9k/ath9k_hw.ko] undefined!
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2
> Is the 10000 microsecond udelay really required?  I believe the limit
> on ARM is 2000.  Perhaps something else could be done in this case?

The delay is a workaround for a HW issue. Does this patch fix the problem ?

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index fbf43c0..11eab9f 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1316,7 +1316,7 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
 	if (AR_SREV_9300_20_OR_LATER(ah))
 	else if (AR_SREV_9100(ah))
-		udelay(10000);
+		mdelay(10);
@@ -2051,9 +2051,8 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
 	if (AR_SREV_9100(ah))
-		udelay(10000);
+		mdelay(10);

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists