From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Syed Nayyar Waris <syednwaris@gmail.com>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Michal Simek <michal.simek@xilinx.com>,
Arnd Bergmann <arnd@arndb.de>,
Robert Richter <rrichter@marvell.com>,
Linus Walleij <linus.walleij@linaro.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Zhang, Rui" <rui.zhang@intel.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Amit Kucheria <amit.kucheria@verdurent.com>,
Linux-Arch <linux-arch@vger.kernel.org>,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
Linux PM <linux-pm@vger.kernel.org>
Subject: Re: [PATCH v3 3/3] gpio: xilinx: Utilize generic bitmap_get_value and _set_value
Date: Sat, 27 Mar 2021 21:02:04 +0900 [thread overview]
Message-ID: <YF8evJTkiBYjnDON@shinobu> (raw)
In-Reply-To: <CAHp75VfDZbJjCOEGdHc=-D6W8_7m2=CinXj-itwn6hvoVqdWYQ@mail.gmail.com>
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On Sat, Mar 27, 2021 at 09:29:26AM +0200, Andy Shevchenko wrote:
> On Saturday, March 27, 2021, Syed Nayyar Waris <syednwaris@gmail.com> wrote:
>
> > On Fri, Mar 26, 2021 at 11:32 PM Andy Shevchenko
> > <andy.shevchenko@gmail.com> wrote:
> > >
> > > On Sat, Mar 6, 2021 at 4:08 PM Syed Nayyar Waris <syednwaris@gmail.com>
> > wrote:
> > >
> > > > + bitmap_set_value(old, 64, state[0], 32, 0);
> > > > + bitmap_set_value(old, 64, state[1], 32, 32);
> > >
> > > Isn't it effectively bitnap_from_arr32() ?
> > >
> > > > + bitmap_set_value(new, 64, state[0], 32, 0);
> > > > + bitmap_set_value(new, 64, state[1], 32, 32);
> > >
> > > Ditto.
> > >
> > > --
> > > With Best Regards,
> > > Andy Shevchenko
> >
> > Hi Andy,
> >
> > With bitmap_set_value() we are also specifying the offset (or start)
> > position too. so that the remainder of the array remains unaffected. I
> > think it would not be feasible to use bitmap_from/to_arr32() here.
>
>
> You have hard coded start and nbits parameters to 32. How is it not the
> same?
Would these four lines become something like this:
bitmap_from_arr32(old, state, 64);
...
bitmap_from_arr32(new, state, 64);
Sincerely,
William Breathitt Gray
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next prev parent reply other threads:[~2021-03-27 12:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-06 14:01 [PATCH v3 0/3] Introduce the for_each_set_nbits macro Syed Nayyar Waris
2021-03-06 14:03 ` [PATCH v3 1/3] gpiolib: " Syed Nayyar Waris
2021-03-06 14:05 ` [PATCH v3 2/3] gpio: thunderx: Utilize " Syed Nayyar Waris
2021-03-06 14:06 ` [PATCH v3 3/3] gpio: xilinx: Utilize generic bitmap_get_value and _set_value Syed Nayyar Waris
2021-03-08 7:13 ` Michal Simek
2021-03-26 17:27 ` Bartosz Golaszewski
2021-03-31 15:26 ` Srinivas Neeli
2021-04-01 11:15 ` Syed Nayyar Waris
2021-04-01 12:51 ` Bartosz Golaszewski
2021-03-26 17:57 ` Andy Shevchenko
2021-04-02 9:40 ` Syed Nayyar Waris
2021-03-26 18:02 ` Andy Shevchenko
2021-03-26 22:12 ` Syed Nayyar Waris
[not found] ` <CAHp75VfDZbJjCOEGdHc=-D6W8_7m2=CinXj-itwn6hvoVqdWYQ@mail.gmail.com>
2021-03-27 12:02 ` William Breathitt Gray [this message]
2021-03-27 16:35 ` Andy Shevchenko
2021-04-01 17:50 ` Syed Nayyar Waris
2021-03-29 15:24 ` Andy Shevchenko
2021-04-01 17:47 ` Syed Nayyar Waris
2021-04-02 10:07 ` Syed Nayyar Waris
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