On Fri, Jun 03, 2022 at 09:50:55AM -0700, Joe Perches wrote: > On Fri, 2022-06-03 at 19:44 +0300, Andy Shevchenko wrote: > > Instead of doing simple operations and using an additional variable on stack, > > utilize strnlen() and reuse len variable. > [] > > diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c > [] > > + while (len > 0) { > > + if ((k = hex_to_bin(in_str[len--])) != -1) > > out[i] = k; > > else > > return 0; > > could be reversed and unindented > > > > > - if (j == 0) > > + if (len == 0) > > break; > > - if ((k = hex_to_bin(in_str[j--])) != -1) > > + if ((k = hex_to_bin(in_str[len--])) != -1) > > out[i] += k << 4; > > else > > return 0; > > and here It might be done as a follow up. Thanks! -- With Best Regards, Andy Shevchenko