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SubjectRe: [PATCH v2 01/17] remoteproc: add IPA notification to q6v5 driver
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On 3/6/20 5:49 AM, Leon Romanovsky wrote:
> On Thu, Mar 05, 2020 at 10:28:15PM -0600, Alex Elder wrote:
>> Set up a subdev in the q6v5 modem remoteproc driver that generates
>> event notifications for the IPA driver to use for initialization and
>> recovery following a modem shutdown or crash.

. . .

>> diff --git a/include/linux/remoteproc/qcom_q6v5_ipa_notify.h b/include/linux/remoteproc/qcom_q6v5_ipa_notify.h
>> new file mode 100644
>> index 000000000000..0820edc0ab7d
>> --- /dev/null
>> +++ b/include/linux/remoteproc/qcom_q6v5_ipa_notify.h
>> @@ -0,0 +1,82 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
>> +
>> +/* Copyright (C) 2019 Linaro Ltd. */
>> +
>> +#ifndef __QCOM_Q6V5_IPA_NOTIFY_H__
>> +#define __QCOM_Q6V5_IPA_NOTIFY_H__
>> +
>> +#if IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY)
>
> Why don't you put this guard in the places where such include is called?
> Or the best variant is to ensure that this include is compiled in only
> in CONFIG_QCOM_Q6V5_IPA_NOTIFY flows.

I did it this way so the no-op definitions resided in the same header
file if the config option is not enabled. And the no-ops were there
so the calling code didn't have to use #ifdef.

I have no objection to what you suggest. I did a quick scan for other
examples like this for guidance and found lots of examples of doing it
the way I did.

So I'm happy to change it, but would like an additional request to do
so before I do that work.

Thanks.

-Alex

> That is more common way to guard internal header files.
>
> Thanks
>

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