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Message-ID: <ZeCg24Iv8qDmxNV9@smile.fi.intel.com>
Date: Thu, 29 Feb 2024 17:20:59 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Herve Codina <herve.codina@...tlin.com>
Cc: Vadim Fedorenko <vadim.fedorenko@...ux.dev>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Yury Norov <yury.norov@...il.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org, Andrew Lunn <andrew@...n.ch>,
Mark Brown <broonie@...nel.org>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v5 4/5] net: wan: fsl_qmc_hdlc: Add runtime timeslots
changes support
On Thu, Feb 29, 2024 at 03:15:52PM +0100, Herve Codina wrote:
> QMC channels support runtime timeslots changes but nothing is done at
> the QMC HDLC driver to handle these changes.
>
> Use existing IFACE ioctl in order to configure the timeslots to use.
...
> + bitmap_scatter(ts_mask, map, ts_mask_avail, 64);
Wondering if we may have returned value more useful and hence having something like
n = bitmap_scatter(...);
> + if (bitmap_weight(ts_mask, 64) != bitmap_weight(map, 64)) {
if (n != ...) {
?
> + dev_err(qmc_hdlc->dev, "Cannot translate timeslots %64pb -> (%64pb, %64pb)\n",
> + map, ts_mask_avail, ts_mask);
> + return -EINVAL;
> + }
...
> + bitmap_gather(map, ts_mask, ts_mask_avail, 64);
> +
> + if (bitmap_weight(ts_mask, 64) != bitmap_weight(map, 64)) {
> + dev_err(qmc_hdlc->dev, "Cannot translate timeslots (%64pb, %64pb) -> %64pb\n",
> + ts_mask_avail, ts_mask, map);
> + return -EINVAL;
> + }
Ditto.
--
With Best Regards,
Andy Shevchenko
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