I'm going through some of the warnings that Fengguang Wu's test bot has discovered, and one of them is from a MIPS allmodconfig build. https://lists.01.org/pipermail/kbuild-all/2014-May/004751.html kernel/trace/trace_benchmark.c: In function 'trace_do_benchmark': >> kernel/trace/trace_benchmark.c:84:3: warning: comparison of distinct pointer types lacks a cast [enabled by default] >> kernel/trace/trace_benchmark.c:85:3: warning: comparison of distinct pointer types lacks a cast [enabled by default] kernel/trace/trace_benchmark.c:38:6: warning: unused variable 'seedsq' [-Wunused-variable] vim +84 kernel/trace/trace_benchmark.c 78 if (bm_cnt > 1) { 79 /* 80 * Apply Welford's method to calculate standard deviation: 81 * s^2 = 1 / (n * (n-1)) * (n * \Sum (x_i)^2 - (\Sum x_i)^2) 82 */ 83 stddev = (u64)bm_cnt * bm_totalsq - bm_total * bm_total; > 84 do_div(stddev, bm_cnt); > 85 do_div(stddev, bm_cnt - 1); 86 } else 87 stddev = 0; 88 Is there something special with do_div in mips that I should be aware of? -- Steve
