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Date: Sat, 14 Mar 2015 09:59:38 +0100 From: Nicholas Mc Guire <der.herr@...r.at> To: Michal Kazior <michal.kazior@...to.com> Cc: Nicholas Mc Guire <hofrat@...dl.org>, Kalle Valo <kvalo@....qualcomm.com>, Network Development <netdev@...r.kernel.org>, linux-wireless <linux-wireless@...r.kernel.org>, linux-kernel@...r.kernel.org, "ath10k@...ts.infradead.org" <ath10k@...ts.infradead.org> Subject: Re: [PATCH 2/3 RFC] ath10k: wmi: match wait_for_completion_timeout return type On Fri, 13 Mar 2015, Michal Kazior wrote: > On 12 March 2015 at 16:49, Nicholas Mc Guire <hofrat@...dl.org> wrote: > > Return type of wait_for_completion_timeout is unsigned long not int. > > An appropriately named unsigned long is added and the assignments fixed up. > > Rather than returning 0 (timeout) or a more or less random remaining time > > (completion success) this return 0 or 1 which also resolves the type of the > > functions being int. > > > > Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org> > > --- > > > > Checking the call-sites of ath10k_wmi_wait_for_unified_ready and > > ath10k_wmi_wait_for_service_ready the positive return value (remaining > > time in jiffies) is never passed up the call-chain nor used so it is > > cleaner to treat this like a boolean success/fail only (actually the two > > functions should probably be of type bool - but that does not seem to be > > common practice in the ath10k code base) > > It'd make sense to have these functions return 0 or -ETIMEDOUT. In > that case both call sites would need to be adjusted to treat "< 0" or > "!x" as an error (instead of the current "<= 0") condition and not set > -ETIMEDOUT themselves. > looking at the call sites in ath10k_core_start more or less all other initialization calls will treate 0 as success and !=0 as failure so this is the cleaner solution. as its all now status = call() if(status) error patch just posted. thx! hofrat -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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