linux-kernel - Re: [PATCH 2/5] bits_per_long.h: introduce SMALL

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Date:   Fri, 29 Jan 2021 13:24:09 -0800
From:   Joe Perches <joe@...ches.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Yury Norov <yury.norov@...il.com>
Cc:     linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-SH <linux-sh@...r.kernel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>, Arnd Bergmann <arnd@...db.de>,
        Dennis Zhou <dennis@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        David Sterba <dsterba@...e.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Stefano Brivio <sbrivio@...hat.com>,
        "Ma, Jianpeng" <jianpeng.ma@...el.com>,
        Wei Yang <richard.weiyang@...ux.alibaba.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Subject: Re: [PATCH 2/5] bits_per_long.h: introduce SMALL_CONST() macro

On Fri, 2021-01-29 at 23:10 +0200, Andy Shevchenko wrote:
> On Fri, Jan 29, 2021 at 10:49 PM Yury Norov <yury.norov@...il.com> wrote:
[]
> > @@ -37,7 +37,7 @@
> >  #define GENMASK(h, l) \
> >         (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
> > 
> > -#define BITS_FIRST(nr)         GENMASK(nr), 0)
> > +#define BITS_FIRST(nr)         GENMASK((nr), 0)
> 
> How come?!

It's broken otherwise with unbalanced parentheses...