When building for 32-bit hosts, the compiler currently complains: x86/pmu.c: In function 'check_gp_counters_write_width': x86/pmu.c:490:30: error: left shift count >= width of type Use the correct suffix to avoid this problem. Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx> --- x86/pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/x86/pmu.c b/x86/pmu.c index 57a2b23..91a6fb4 100644 --- a/x86/pmu.c +++ b/x86/pmu.c @@ -487,7 +487,7 @@ static void do_unsupported_width_counter_write(void *index) static void check_gp_counters_write_width(void) { u64 val_64 = 0xffffff0123456789ull; - u64 val_32 = val_64 & ((1ul << 32) - 1); + u64 val_32 = val_64 & ((1ull << 32) - 1); u64 val_max_width = val_64 & ((1ul << eax.split.bit_width) - 1); int i; -- 2.18.1