Re: [PATCH v10 03/14] iio: inkern: make a best effort on offset calculation
From: Liam Beguin <hidden>
Date: 2021-12-21 17:50:26
Also in:
linux-iio, lkml
From: Liam Beguin <hidden>
Date: 2021-12-21 17:50:26
Also in:
linux-iio, lkml
Hi Andy, On Tue, Dec 21, 2021 at 07:42:31AM +0200, Andy Shevchenko wrote:
On Mon, Dec 20, 2021 at 11:17 AM Liam Beguin [off-list ref] wrote:quoted
From: Liam Beguin <redacted> iio_convert_raw_to_processed_unlocked() assumes the offset is an integer. Make a best effort to get a valid offset value for fractional cases without breaking implicit truncations....quoted
+ offset_val /= (1 << offset_val2);Besides potentially being problematic (if arg is 31 for the left shift) why not simply _val >>= _val2;
That is safer, and more elegant! I'll update. Thanks, Liam
-- With Best Regards, Andy Shevchenko