Messages in this thread | | | From | andy.shevchenko@gmail ... | Date | Wed, 5 Jul 2023 13:24:56 +0300 | Subject | Re: [PATCH v2 3/5] spi: Add support for Renesas CSI |
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Mon, Jul 03, 2023 at 12:19:26PM +0200, Geert Uytterhoeven kirjoitti: > On Thu, Jun 22, 2023 at 1:34 PM Fabrizio Castro > <fabrizio.castro.jz@renesas.com> wrote:
...
> > + if (csi->txbuf) > > + /* > > + * Leaving a little bit of headroom in the FIFOs makes it very > > + * hard to raise an overflow error (which is only possible > > + * when IP transmits and receives at the same time). > > + */ > > + to_transfer = min_t(int, CSI_FIFO_HALF_SIZE, bytes_remaining); > > + else > > + to_transfer = min_t(int, CSI_FIFO_SIZE_BYTES, bytes_remaining); > > Why min_t(int, ...)? Both values are int.
min_t() should be used with a great care.
> It would be better to make both unsigned, though.
I believe you are assuming 3 (three) values and not 2 (two) under "both" (one variable and two definitions).
-- With Best Regards, Andy Shevchenko
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