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SubjectRE: 2.6.22: ERROR: "__ucmpdi2" [drivers/net/s2io.ko] undefined!
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Hi,

We will include this fix in next set of patch submission. Thanks for the
fix.

Thanks,
~Siva
-----Original Message-----
From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org]
On Behalf Of Olaf Hering
Sent: Wednesday, June 20, 2007 2:11 AM
To: Stephen Hemminger
Cc: linux-kernel@vger.kernel.org; netdev@vger.kernel.org
Subject: Re: 2.6.22: ERROR: "__ucmpdi2" [drivers/net/s2io.ko] undefined!
On Tue, Jun 19, Stephen Hemminger wrote:

> On Tue, 19 Jun 2007 21:02:53 +0200
> Olaf Hering <olaf@aepfle.de> wrote:
>
> >
> > What happend to __ucmpdi2 from David Woodhouse?
> > google has a few hits about stuff like this on 32bit powerpc with
gcc 4.1.2:
> >
> > ERROR: "__ucmpdi2" [drivers/net/s2io.ko] undefined!
> >
> > using the drivers/net/s2io* files from 2.6.21 with 2.6.22-rc5 fixes
> > the compile.
> >
> > 25805dcf9d83098cf5492117ad2669cd14cc9b24 adds two u64 >>= 48
> > followed by a switch statement (line 2889 and 6816).
>
> Probably the "switch(err) {" needs a cast to a smaller type (like u8).

This change removes the calls to __ucmpdi2.

---
drivers/net/s2io.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -2868,6 +2868,7 @@ static void tx_intr_handler(struct fifo_
struct tx_curr_get_info get_info, put_info;
struct sk_buff *skb;
struct TxD *txdlp;
+ u8 err_mask;

get_info = fifo_data->tx_curr_get_info;
memcpy(&put_info, &fifo_data->tx_curr_put_info,
sizeof(put_info)); @@ -2886,8 +2887,8 @@ static void
tx_intr_handler(struct fifo_
}

/* update t_code statistics */
- err >>= 48;
- switch(err) {
+ err_mask = err >> 48;
+ switch(err_mask) {
case 2:

nic->mac_control.stats_info->sw_stat.

tx_buf_abort_cnt++;
@@ -6805,6 +6806,7 @@ static int rx_osm_handler(struct ring_in
u16 l3_csum, l4_csum;
unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
struct lro *lro;
+ u8 err_mask;

skb->dev = dev;

@@ -6813,8 +6815,8 @@ static int rx_osm_handler(struct ring_in
if (err & 0x1) {

sp->mac_control.stats_info->sw_stat.parity_err_cnt++;
}
- err >>= 48;
- switch(err) {
+ err_mask = err >> 48;
+ switch(err_mask) {
case 1:
sp->mac_control.stats_info->sw_stat.
rx_parity_err_cnt++;
@@ -6867,9 +6869,9 @@ static int rx_osm_handler(struct ring_in
* Note that in this case, since checksum will be
incorrect,
* stack will validate the same.
*/
- if (err != 0x5) {
- DBG_PRINT(ERR_DBG, "%s: Rx error Value:
0x%llx\n",
- dev->name, err);
+ if (err_mask != 0x5) {
+ DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
+ dev->name, err_mask);
sp->stats.rx_crc_errors++;
sp->mac_control.stats_info->sw_stat.mem_freed
+= skb->truesize;
-
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