Re: [PATCH v4 1/7] riscv: asm: alternative-macros: Introduce ALTERNATIVE_3() macro

From: Andrew Jones <ajones@ventanamicro.com>
To: Conor Dooley <conor@kernel.org>
Cc: "Heiko Stübner" <heiko@sntech.de>,
	Prabhakar <prabhakar.csengg@gmail.com>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	"Magnus Damm" <magnus.damm@gmail.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor.dooley@microchip.com>,
	"Guo Ren" <guoren@kernel.org>,
	"Jisheng Zhang" <jszhang@kernel.org>,
	"Atish Patra" <atishp@rivosinc.com>,
	"Anup Patel" <apatel@ventanamicro.com>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Philipp Tomsich" <philipp.tomsich@vrull.eu>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	linux-renesas-soc@vger.kernel.org,
	"Biju Das" <biju.das.jz@bp.renesas.com>,
	"Lad Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH v4 1/7] riscv: asm: alternative-macros: Introduce ALTERNATIVE_3() macro
Date: Fri, 25 Nov 2022 12:44:54 +0100	[thread overview]
Message-ID: <20221125114454.yfh2mtctbi3nkud7@kamzik> (raw)
In-Reply-To: <Y3/OlKI1jyi0eoCJ@spud>

On Thu, Nov 24, 2022 at 08:05:40PM +0000, Conor Dooley wrote:
> On Thu, Nov 24, 2022 at 08:58:41PM +0100, Heiko Stübner wrote:
> > Am Donnerstag, 24. November 2022, 20:52:33 CET schrieb Conor Dooley:
> > > On Thu, Nov 24, 2022 at 05:22:01PM +0000, Prabhakar wrote:
> > > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > > 
> > > > Introduce ALTERNATIVE_3() macro.
> > > 
> > > Bit perfunctory I think! There's a lovely comment down below that would
> > > make for a better commit message if you were to yoink it.
> > > Content looks about what I'd expect to see though.
> > 
> > Also both the comment on the original ALTERNATIVE_2 and the new ALTERNATIVE_3
> > should probably be merged into a single comment explaining this once for all
> > ALTERNATIVE_x variants.
> > 
> > Especially with the dma stuff, I'm pretty sure we'll get at least an ALTERNATIVE_4
> > if not even more ;-) . So we defnitly don't want to repeat this multiple times.
> 
> Oh I can promise you that there'll be a #4 ;)

I took a stab[*] at cleaning up alternative-macros.h a bit in order to
prepare for _3, _4, ..., _42. The idea was to try and find a way to
reduce as much duplication as possible, both in the current code and
in the new macros.

[*] https://lore.kernel.org/all/20221125113959.35328-1-ajones@ventanamicro.com/

Thanks,
drew

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