linux-kernel - Re: [PATCH v5 05/22] powerpc/irq: Add helper to set regs->softe

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Date:   Tue, 9 Feb 2021 07:18:45 +0100
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Nicholas Piggin <npiggin@...il.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>, msuchanek@...e.de,
        Paul Mackerras <paulus@...ba.org>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v5 05/22] powerpc/irq: Add helper to set regs->softe



Le 09/02/2021 à 02:11, Nicholas Piggin a écrit :
> Excerpts from Christophe Leroy's message of February 9, 2021 1:10 am:
>> regs->softe doesn't exist on PPC32.
>>
>> Add irq_soft_mask_regs_set_state() helper to set regs->softe.
>> This helper will void on PPC32.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
>> ---
> 
> You could do the same with the kuap_ functions to change some ifdefs
> to IS_ENABLED.
> 
> That's just my preference but if you prefer this way I guess that's
> okay.
> 


That's also my preference on the long term.

Here it is ephemeral, I have a follow up series implementing interrupt exit/entry in C and getting 
rid of all the assembly kuap hence getting rid of those ifdefs.

The issue I see when using IS_ENABLED() is that you have to indent to the right, then you interfere 
with the file history and 'git blame'

Thanks for reviewing my series and looking forward to your feedback on my series on the interrupt 
entry/exit that I will likely release later today.

Christophe