From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Alexandru Ardelean <ardeleanalex@gmail.com>
Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
jic23@kernel.org, lars@metafoo.de,
Alexandru Ardelean <alexandru.ardelean@analog.com>
Subject: Re: [PATCH] iio: buffer: re-introduce bitmap_zalloc() for trialmask
Date: Tue, 17 Mar 2020 14:52:23 +0200 [thread overview]
Message-ID: <20200317125223.GC1922688@smile.fi.intel.com> (raw)
In-Reply-To: <20200317123621.27722-1-alexandru.ardelean@analog.com>
On Tue, Mar 17, 2020 at 02:36:21PM +0200, Alexandru Ardelean wrote:
> Commit 3862828a903d3 ("iio: buffer: Switch to bitmap_zalloc()") introduced
> bitmap_alloc(), but commit 20ea39ef9f2f9 ("iio: Fix scan mask selection")
> reverted it.
>
> This change adds it back. The only difference is that it's adding
> bitmap_zalloc(). There might be some changes later that would require
> initializing it to zero. In any case, now it's already zero-ing the
> trialmask.
FWIW,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> ---
> drivers/iio/industrialio-buffer.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
> index 4ada5592aa2b..5ff34ce8b6a2 100644
> --- a/drivers/iio/industrialio-buffer.c
> +++ b/drivers/iio/industrialio-buffer.c
> @@ -316,8 +316,7 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev,
> const unsigned long *mask;
> unsigned long *trialmask;
>
> - trialmask = kcalloc(BITS_TO_LONGS(indio_dev->masklength),
> - sizeof(*trialmask), GFP_KERNEL);
> + trialmask = bitmap_zalloc(indio_dev->masklength, GFP_KERNEL);
> if (trialmask == NULL)
> return -ENOMEM;
> if (!indio_dev->masklength) {
> --
> 2.20.1
>
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-03-17 12:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-17 12:36 [PATCH] iio: buffer: re-introduce bitmap_zalloc() for trialmask Alexandru Ardelean
2020-03-17 12:52 ` Andy Shevchenko [this message]
2020-03-17 12:53 ` Ardelean, Alexandru
2020-03-17 13:18 ` Lars-Peter Clausen
2020-03-22 17:02 ` Jonathan Cameron
2020-03-21 8:59 ` [PATCH v2] " Alexandru Ardelean
2020-03-22 17:01 ` Jonathan Cameron
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