Re: [PATCH v2] staging: rtl8723bs: Use % 4096 instead of & 0xfff
Andy Shevchenko <[email protected]> Sat, 5 Apr 2025 15:24:48 +0300
| Newsgroups | dev.linux.lists.outreachy,dev.linux.lists.linux-staging,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <CAHp75Vc0vOB1nDLrV+wmYeshxTsDwYq0xBkmJiOH=d5HONRpNQ@mail.gmail.com> |
On Sat, Apr 5, 2025 at 11:23 AM Greg Kroah-Hartman <[email protected]> wrote: > On Sat, Apr 05, 2025 at 12:09:59AM +0000, Abraham Samuel Adekunle wrote: > > Replace the bitwise AND operator `&` with a modulo > > operator `%` and decimal number to make the upper limit visible > > and clear what the semantic of it is. > > Eeek, no. We all "know" what & means (it's a bit mask to handle the > issues involved), and we all do NOT know that % will do the same thing > at all. And that is exactly the purpose of the change. The % 4096 makes it clearer on what's going on, i.e. we are doing indexes that are wrapped around the given number. > So this just made things more difficult to maintain over time. > > What tool suggested this type of change to be made to this driver and > these lines? It's not a tool, it was me. I read the code and suggested that change. -- With Best Regards, Andy Shevchenko