Hello! On 19.06.2019 16:31, Arnd Bergmann wrote:
On 32-bit architectures, we cannot easily device 64-bit numbers:
s/device/divide/?
ERROR: "__aeabi_uldivmod" [drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.ko] undefined! Use do_div() to annotate the fact that we know this is an
div_u64() really?
expensive operation. Fixes: 992aa864dca0 ("mlxsw: spectrum_ptp: Add implementation for physical hardware clock operations") Signed-off-by: Arnd Bergmann <a...@arndb.de> --- drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c index 2a9bbc90225e..618e329e1490 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c @@ -87,7 +87,7 @@ mlxsw_sp1_ptp_phc_settime(struct mlxsw_sp_ptp_clock *clock, u64 nsec) u32 next_sec; int err;- next_sec = nsec / NSEC_PER_SEC + 1;+ next_sec = div_u64(nsec, NSEC_PER_SEC) + 1; next_sec_in_nsec = next_sec * NSEC_PER_SEC;spin_lock(&clock->lock);
MBR, Sergei
