RE: [PATCH] dpaa2-eth: debugfs: use div64_u64 for division

From: Ioana Ciornei
Date: Wed Apr 29 2020 - 05:18:09 EST


> Subject: [PATCH] dpaa2-eth: debugfs: use div64_u64 for division
>
> A plain 64-bit division breaks building on 32-bit architectures:
>
> ERROR: modpost: "__aeabi_uldivmod"
> [drivers/net/ethernet/freescale/dpaa2/fsl-dpaa2-eth.ko] undefined!
>
> As this function is not performance critical, just use the external helper instead.
>
> Fixes: 460fd830dd9d ("dpaa2-eth: add channel stat to debugfs")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Thanks for the patch.
A fix for this was applied some hours ago on the net-next branch.

--
Ioana

> ---
> drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
> b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
> index 80291afff3ea..0a31e4268dfb 100644
> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
> @@ -139,7 +139,7 @@ static int dpaa2_dbg_ch_show(struct seq_file *file, void
> *offset)
> ch->stats.dequeue_portal_busy,
> ch->stats.frames,
> ch->stats.cdan,
> - ch->stats.frames / ch->stats.cdan,
> + div64_u64(ch->stats.frames, ch->stats.cdan),
> ch->buf_count);
> }
>
> --
> 2.26.0