[patch 2/3] s390: minor qeth network driver fixes
From: Frank Pavlic <[email protected]>
- use netif_carrier_on/off calls to tell network stack
link carrier state
- fix possible kfree on NULL
- PDU_LEN2 is at offset 0x29 otherwise OSN chpid won't initialize
Signed-off-by: Frank Pavlic <[email protected]>
diffstat:
qeth_eddp.c | 3 ++-
qeth_main.c | 17 +++++++----------
qeth_mpc.h | 2 +-
3 files changed, 10 insertions(+), 12 deletions(-)
diff -Naupr linux-orig/drivers/s390/net/qeth_eddp.c linux-patched/drivers/s390/net/qeth_eddp.c
--- linux-orig/drivers/s390/net/qeth_eddp.c 2005-12-12 17:33:48.000000000 +0100
+++ linux-patched/drivers/s390/net/qeth_eddp.c 2005-12-12 18:56:23.000000000 +0100
@@ -62,7 +62,8 @@ qeth_eddp_free_context(struct qeth_eddp_
for (i = 0; i < ctx->num_pages; ++i)
free_page((unsigned long)ctx->pages[i]);
kfree(ctx->pages);
- kfree(ctx->elements);
+ if (ctx->elements != NULL)
+ kfree(ctx->elements);
kfree(ctx);
}
diff -Naupr linux-orig/drivers/s390/net/qeth_main.c linux-patched/drivers/s390/net/qeth_main.c
--- linux-orig/drivers/s390/net/qeth_main.c 2005-12-12 18:15:36.000000000 +0100
+++ linux-patched/drivers/s390/net/qeth_main.c 2005-12-12 18:56:23.000000000 +0100
@@ -518,7 +518,8 @@ __qeth_set_offline(struct ccwgroup_devic
QETH_DBF_TEXT(setup, 3, "setoffl");
QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
-
+
+ netif_carrier_off(card->dev);
recover_flag = card->state;
if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
PRINT_WARN("Stopping card %s interrupted by user!\n",
@@ -1020,7 +1021,6 @@ void
qeth_schedule_recovery(struct qeth_card *card)
{
QETH_DBF_TEXT(trace,2,"startrec");
-
if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
schedule_work(&card->kernel_thread_starter);
}
@@ -1710,7 +1710,6 @@ qeth_check_ipa_data(struct qeth_card *ca
"IP address reset.\n",
QETH_CARD_IFNAME(card),
card->info.chpid);
- netif_carrier_on(card->dev);
qeth_schedule_recovery(card);
return NULL;
case IPA_CMD_MODCCID:
@@ -1959,7 +1958,7 @@ qeth_osn_send_ipa_cmd(struct qeth_card *
{
u16 s1, s2;
-QETH_DBF_TEXT(trace,4,"osndipa");
+ QETH_DBF_TEXT(trace,4,"osndipa");
qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
@@ -3809,10 +3808,8 @@ qeth_open(struct net_device *dev)
card->data.state = CH_STATE_UP;
card->state = CARD_STATE_UP;
- if (!card->lan_online){
- if (netif_carrier_ok(dev))
- netif_carrier_off(dev);
- }
+ if (!card->lan_online && netif_carrier_ok(dev))
+ netif_carrier_off(dev);
return 0;
}
@@ -7936,8 +7933,8 @@ __qeth_set_online(struct ccwgroup_device
QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
goto out_remove;
}
-/*maybe it was set offline without ifconfig down
- * we can also use this state for recovery purposes*/
+ netif_carrier_on(card->dev);
+
qeth_set_allowed_threads(card, 0xffffffff, 0);
if (recover_flag == CARD_STATE_RECOVER)
qeth_start_again(card, recovery_mode);
diff -Naupr linux-orig/drivers/s390/net/qeth_mpc.h linux-patched/drivers/s390/net/qeth_mpc.h
--- linux-orig/drivers/s390/net/qeth_mpc.h 2005-12-12 17:33:48.000000000 +0100
+++ linux-patched/drivers/s390/net/qeth_mpc.h 2005-12-12 18:56:23.000000000 +0100
@@ -21,7 +21,7 @@ extern const char *VERSION_QETH_MPC_C;
#define IPA_PDU_HEADER_SIZE 0x40
#define QETH_IPA_PDU_LEN_TOTAL(buffer) (buffer+0x0e)
#define QETH_IPA_PDU_LEN_PDU1(buffer) (buffer+0x26)
-#define QETH_IPA_PDU_LEN_PDU2(buffer) (buffer+0x2a)
+#define QETH_IPA_PDU_LEN_PDU2(buffer) (buffer+0x29)
#define QETH_IPA_PDU_LEN_PDU3(buffer) (buffer+0x3a)
extern unsigned char IPA_PDU_HEADER[];