diff options
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/capi/capidrv.c | 25 | ||||
| -rw-r--r-- | drivers/isdn/sc/shmem.c | 9 |
2 files changed, 27 insertions, 7 deletions
diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c index 476012b6dfa..48c1775ef5b 100644 --- a/drivers/isdn/capi/capidrv.c +++ b/drivers/isdn/capi/capidrv.c @@ -1843,6 +1843,7 @@ static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb) int msglen; u16 errcode; u16 datahandle; + u32 data; if (!card) { printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n", @@ -1860,9 +1861,26 @@ static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb) return 0; } datahandle = nccip->datahandle; + + /* + * Here we copy pointer skb->data into the 32-bit 'Data' field. + * The 'Data' field is not used in practice in linux kernel + * (neither in 32 or 64 bit), but should have some value, + * since a CAPI message trace will display it. + * + * The correct value in the 32 bit case is the address of the + * data, in 64 bit it makes no sense, we use 0 there. + */ + +#ifdef CONFIG_64BIT + data = 0; +#else + data = (unsigned long) skb->data; +#endif + capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++, nccip->ncci, /* adr */ - (u32) skb->data, /* Data */ + data, /* Data */ skb->len, /* DataLength */ datahandle, /* DataHandle */ 0 /* Flags */ @@ -2123,7 +2141,10 @@ static int capidrv_delcontr(u16 contr) printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr); return -1; } - #warning FIXME: maybe a race condition the card should be removed here from global list /kkeil + + /* FIXME: maybe a race condition the card should be removed + * here from global list /kkeil + */ spin_unlock_irqrestore(&global_lock, flags); del_timer(&card->listentimer); diff --git a/drivers/isdn/sc/shmem.c b/drivers/isdn/sc/shmem.c index 034d41a61ae..e0331e0094f 100644 --- a/drivers/isdn/sc/shmem.c +++ b/drivers/isdn/sc/shmem.c @@ -28,15 +28,15 @@ void memcpy_toshmem(int card, void *dest, const void *src, size_t n) { unsigned long flags; unsigned char ch; + unsigned long dest_rem = ((unsigned long) dest) % 0x4000; - if(!IS_VALID_CARD(card)) { + if (!IS_VALID_CARD(card)) { pr_debug("Invalid param: %d is not a valid card id\n", card); return; } - if(n > SRAM_PAGESIZE) { + if (n > SRAM_PAGESIZE) return; - } /* * determine the page to load from the address @@ -50,8 +50,7 @@ void memcpy_toshmem(int card, void *dest, const void *src, size_t n) outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80, sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]); - memcpy_toio(sc_adapter[card]->rambase + - ((unsigned long) dest % 0x4000), src, n); + memcpy_toio(sc_adapter[card]->rambase + dest_rem, src, n); spin_unlock_irqrestore(&sc_adapter[card]->lock, flags); pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename, ((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80); |