linux-kernel - Re: [PATCH linux-next v4 5/5] mtd: atmel-quadspi: add driver for Atmel QSPI controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <201508251222.10813.marex@denx.de>
Date:	Tue, 25 Aug 2015 12:22:10 +0200
From:	Marek Vasut <marex@...x.de>
To:	Cyrille Pitchen <cyrille.pitchen@...el.com>
Cc:	nicolas.ferre@...el.com, broonie@...nel.org,
	linux-spi@...r.kernel.org, dwmw2@...radead.org,
	computersforpeace@...il.com, zajec5@...il.com, beanhuo@...ron.com,
	juhosg@...nwrt.org, shijie.huang@...el.com, ben@...adent.org.uk,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH linux-next v4 5/5] mtd: atmel-quadspi: add driver for Atmel QSPI controller

On Tuesday, August 25, 2015 at 12:17:37 PM, Cyrille Pitchen wrote:
> Hi Marek,

Hi!

> Le 24/08/2015 13:03, Marek Vasut a écrit :
> > On Monday, August 24, 2015 at 12:14:00 PM, Cyrille Pitchen wrote:
> >> This driver add support to the new Atmel QSPI controller embedded into
> >> sama5d2x SoCs. It expects a NOR memory to be connected to the QSPI
> >> controller.
> >> 
> >> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@...el.com>
> >> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
> > 
> > Hi,
> > 
> > [...]
> > 
> >> +/* Register access macros */
> > 
> > These are functions, not macros :)
> > 
> > btw is there any reason for these ? I'd say, just put the read*() and
> > write*() functions directly into the code and be done with it, it is
> > much less confusing.
> 
> If you don't mind, I'd rather keep some of these inline functions. I have
> no strong justification, it's more a personal taste: it makes lines
> shorter as it avoids the need to add "->regs + ".
> Also it makes the code consistent with other Atmel drivers which already
> use such wrappers.
> 
> However I'll fix the comment and remove the byte and word versions, which
> are not used. So only qspi_readl() and qspi_writel() are left.
> 
> Does it sound good to you?

In my mind, seeing explicit readl_relaxed() somewhere is much easier to
digest than seeing some wrapper, which I have to look up. But please do
wait for others to voice their concern too, I might not be the best person
to tell you what to do when it comes to wrapping IO accessors ;-)

Best regards,
Marek Vasut
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/