On Wed, Jul 29, 2020 at 12:26 AM Daniel Campello <campello@xxxxxxxxxx> wrote: > On Tue, Jul 28, 2020 at 12:11 PM Andy Shevchenko > <andy.shevchenko@xxxxxxxxx> wrote: > > On Tue, Jul 28, 2020 at 6:15 PM Daniel Campello <campello@xxxxxxxxxxxx> wrote: ... > > > - __be16 buffer[SX9310_NUM_CHANNELS + > > > - 4]; /* 64-bit data + 64-bit timestamp */ > > > + /* 64-bit data + 64-bit timestamp buffer */ > > > + __be16 buffer[SX9310_NUM_CHANNELS + 4] __aligned(8); > > > > If the data amount (channels) is always the same, please, use struct approach. > > Otherwise put a comment explaining dynamic data. > I'm not sure what you mean here. I have a comment above for the size > of the array. Here [1] was a discussion about commenting on the dynamic amount of data [see the cover letter and replies to it] in the buffer and the struct approach [e.g. very first patch in the series]. [1]: https://lore.kernel.org/linux-iio/MN2PR12MB43905A2256F98BB5EFCE7DD3C4770@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/T/ -- With Best Regards, Andy Shevchenko