linux-kernel - Re: [PATCH] pinctrl: aspeed: g6: Remove const specifier from aspeed_g6_sig_expr

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Date:   Mon, 12 Aug 2019 10:21:55 +0930
From:   "Andrew Jeffery" <andrew@...id.au>
To:     "Linus Walleij" <linus.walleij@...aro.org>,
        "Nathan Chancellor" <natechancellor@...il.com>
Cc:     "Joel Stanley" <joel@....id.au>,
        linux-aspeed <linux-aspeed@...ts.ozlabs.org>,
        "OpenBMC Maillist" <openbmc@...ts.ozlabs.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "Linux ARM" <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        clang-built-linux@...glegroups.com
Subject: Re: [PATCH] pinctrl: aspeed: g6: Remove const specifier from aspeed_g6_sig_expr_set's ctx parameter



On Sat, 10 Aug 2019, at 17:43, Linus Walleij wrote:
> On Wed, Aug 7, 2019 at 2:32 AM Nathan Chancellor
> <natechancellor@...il.com> wrote:
> 
> > clang errors:
> >
> > drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c:2325:9: error: incompatible
> > pointer types initializing 'int (*)(struct aspeed_pinmux_data *, const
> > struct aspeed_sig_expr *, bool)' with an expression of type 'int (const
> > struct aspeed_pinmux_data *, const struct aspeed_sig_expr *, bool)'
> > [-Werror,-Wincompatible-pointer-types]
> >         .set = aspeed_g6_sig_expr_set,
> >                ^~~~~~~~~~~~~~~~~~~~~~
> > 1 error generated.
> >
> > Commit 674fa8daa8c9 ("pinctrl: aspeed-g5: Delay acquisition of regmaps")
> > changed the set function pointer declaration and the g6 one wasn't
> > updated (I assume because it wasn't merged yet).
> >
> > Fixes: 2eda1cdec49f ("pinctrl: aspeed: Add AST2600 pinmux support")
> > Link: https://github.com/ClangBuiltLinux/linux/issues/632
> > Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
> 
> Patch applied with Andrew's ACK.

FYI this fixes pinctrl/for-next which is likely where Nathan ran into the issue,
however to fix pinctrl/devel we'll need a back-merge of pinctrl/fixes, or to
apply 674fa8daa8c9 ("pinctrl: aspeed-g5: Delay acquisition of regmaps") to
pinctrl/devel also.

Fixing that bug was unfortunate timing wrt the 2600 driver.

Andrew