ath9k ARM build error with v3.13-8330-g4ba9920

Hi All,

This commit:

commit 4dc78c437a0a2ac152a2b2c5e91a814a6ef3599e
Author: Sujith Manoharan [off-list ref]
Date:   Wed Dec 18 09:53:26 2013 +0530

    ath9k: Fix RTC reset delay

    The delay that is required after issuing a RTC reset
    varies for each chip. Handle this properly.

    Signed-off-by: Sujith Manoharan [off-list ref]
    Signed-off-by: John W. Linville [off-list ref]

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?

josh