It was reported that on i386 config
------
on i386:
ld: drivers/platform/x86/amd-pmc.o: in function `s0ix_stats_show':
amd-pmc.c:(.text+0x100): undefined reference to `__udivdi3'
-------
The reason for this is that 64-bit integer division is not supported
on 32-bit architecture. Use do_div macro to fix this.
Fixes: b9a4fa6978be ("platform/x86: amd-pmc: Add support for logging s0ix counters")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
---
drivers/platform/x86/amd-pmc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 680f94c7e075..45ce1d5e1e6d 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -189,7 +189,8 @@ static int s0ix_stats_show(struct seq_file *s, void *unused)
exit_time = exit_time << 32 | ioread32(dev->fch_virt_addr + FCH_S0I3_EXIT_TIME_L_OFFSET);
/* It's in 48MHz. We need to convert it */
- residency = (exit_time - entry_time) / 48;
+ residency = exit_time - entry_time;
+ do_div(residency, 48);
seq_puts(s, "=== S0ix statistics ===\n");
seq_printf(s, "S0ix Entry Time: %lld\n", entry_time);
--
2.25.1
