Re: [PATCH] irda: irda-usb: use msecs_to_jiffies for conversions

From: David Miller
Date: Mon May 25 2015 - 17:39:54 EST


From: Nicholas Mc Guire <hofrat@xxxxxxxxx>
Date: Sat, 23 May 2015 14:46:30 +0200

> API compliance scanning with coccinelle flagged:
>
> Converting milliseconds to jiffies by "val * HZ / 1000" is technically
> is not a clean solution as it does not handle all corner cases correctly.
> By changing the conversion to use msecs_to_jiffies(val) conversion is
> correct in all cases.
>
> in the current code:
> mod_timer(&self->rx_defer_timer, jiffies + (10 * HZ / 1000));
> for HZ < 100 (e.g. CONFIG_HZ == 64|32 in alpha) this effectively results
> in no delay at all.
>
> Patch was compile tested for x86_64_defconfig (implies CONFIG_USB_IRDA=m)
>
> Patch is against 4.1-rc4 (localversion-next is -next-20150522)
>
> Signed-off-by: Nicholas Mc Guire <hofrat@xxxxxxxxx>

Applied to net-next, thanks.
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