Re: [PATCH] mac80211_hwsim: fix compiler warning on MIPS
From: Johannes Berg
Date: Thu Jul 24 2014 - 06:54:57 EST
On Tue, 2014-07-22 at 14:43 -0700, Andrew Bresticker wrote:
> The dividend in do_div() is expected to be an unsigned 64-bit integer,
> which leads to the following warning when building for 32-bit MIPS:
>
> drivers/net/wireless/mac80211_hwsim.c: In function 'mac80211_hwsim_set_tsf':
> drivers/net/wireless/mac80211_hwsim.c:664:98: warning: comparison of distinct pointer types lacks a cast [enabled by default]
> data->bcn_delta = do_div(delta, bcn_int);
>
> Since we care about the signedness of delta when adjusting tsf_offset
> and bcm_delta, use the absolute value for the division and compare
> the two timestamps to determine the sign.
Applied, thanks.
johannes
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