Re: [mmc:mmc-next 45/63] of_iommu.c:(.text+0x114dbc): undefined reference to `__aeabi_uldivmod'

[Fengguang Wu <fengguang.wu@intel.com>]

On Mon, Nov 26, 2012 at 05:54:33AM +0000, Huang Changming-R66093 wrote:
> Hi, Robot
> I don't find the `__aeabi_uldivmod' in branch 'mmc-next' of linux-mmc tree.
> Could you point out which file use it?
> 
> This patch just use the 'div_u64' to calculate the timeout in order to avoid overflow.

Hi! This is confirmed to fix the problem:

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 48ad361..daf0636 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -921,7 +921,7 @@ static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_reque
 	u16 reg;
 
 	cycle_ns = 1000000000 / host->current_slot->fclk_freq;
-	timeout = req->data->timeout_ns / cycle_ns;
+	timeout = div_u64(req->data->timeout_ns, cycle_ns);
 	timeout += req->data->timeout_clks;
 
 	/* Check if we need to use timeout multiplier register */