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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-22 12:48:03 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-22 12:48:03 -0700
commit14d1adfc59ba66932ef167fdff62983e7c2b0197 (patch)
tree34bad21bf4ec220be87fa5d79ff41dd98e7dad9f /drivers/char/hvc_console.c
parente478bec0ba0a83a48a0f6982934b6de079e7e6b3 (diff)
parent69917c26c840e7de94522bf90fb190de63bf92bd (diff)
downloadop-kernel-dev-14d1adfc59ba66932ef167fdff62983e7c2b0197.zip
op-kernel-dev-14d1adfc59ba66932ef167fdff62983e7c2b0197.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (114 commits) [POWERPC] Fix ohare IDE irq workaround on old powermacs [POWERPC] EEH: Power4 systems sometimes need multiple resets. [POWERPC] Include <asm/mmu.h> in arch/powerpc/sysdev/fsl_soc.h for phys_addr_t. [POWERPC] Demacrofy arch/powerpc/platforms/maple/pci.c [POWERPC] Maple U3 HT - reject inappropriate config space access [POWERPC] Fix IPIC pending register assignments [POWERPC] powerpc: fix building gdb against asm/ptrace.h [POWERPC] Remove DISCONTIGMEM cruft from page.h [POWERPC] Merge iSeries i/o operations with the rest [POWERPC] 40x: Fix debug status register defines [POWERPC] Fix compile error in sbc8560 [POWERPC] EEH: support MMIO enable recovery step [POWERPC] EEH: enable MMIO/DMA on frozen slot [POWERPC] EEH: code comment cleanup [POWERPC] EEH: balance pcidev_get/put calls [POWERPC] PPC: Fix xmon stack frame address in backtrace [POWERPC] Add AT_PLATFORM value for Xilinx Virtex-4 FX [POWERPC] Start arch/powerpc/boot code reorganization [POWERPC] Define of_read_ulong helper [POWERPC] iseries: eliminate a couple of warnings ...
Diffstat (limited to 'drivers/char/hvc_console.c')
-rw-r--r--drivers/char/hvc_console.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 613d67f..a76d2c4 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -80,7 +80,8 @@ struct hvc_struct {
struct tty_struct *tty;
unsigned int count;
int do_wakeup;
- char outbuf[N_OUTBUF] __ALIGNED__;
+ char *outbuf;
+ int outbuf_size;
int n_outbuf;
uint32_t vtermno;
struct hv_ops *ops;
@@ -319,10 +320,8 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
struct kobject *kobjp;
/* Auto increments kobject reference if found. */
- if (!(hp = hvc_get_by_index(tty->index))) {
- printk(KERN_WARNING "hvc_console: tty open failed, no vty associated with tty.\n");
+ if (!(hp = hvc_get_by_index(tty->index)))
return -ENODEV;
- }
spin_lock_irqsave(&hp->lock, flags);
/* Check and then increment for fast path open. */
@@ -505,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
if (hp->n_outbuf > 0)
hvc_push(hp);
- while (count > 0 && (rsize = N_OUTBUF - hp->n_outbuf) > 0) {
+ while (count > 0 && (rsize = hp->outbuf_size - hp->n_outbuf) > 0) {
if (rsize > count)
rsize = count;
memcpy(hp->outbuf + hp->n_outbuf, buf, rsize);
@@ -538,7 +537,7 @@ static int hvc_write_room(struct tty_struct *tty)
if (!hp)
return -1;
- return N_OUTBUF - hp->n_outbuf;
+ return hp->outbuf_size - hp->n_outbuf;
}
static int hvc_chars_in_buffer(struct tty_struct *tty)
@@ -729,12 +728,13 @@ static struct kobj_type hvc_kobj_type = {
};
struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
- struct hv_ops *ops)
+ struct hv_ops *ops, int outbuf_size)
{
struct hvc_struct *hp;
int i;
- hp = kmalloc(sizeof(*hp), GFP_KERNEL);
+ hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+ GFP_KERNEL);
if (!hp)
return ERR_PTR(-ENOMEM);
@@ -743,6 +743,8 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
hp->vtermno = vtermno;
hp->irq = irq;
hp->ops = ops;
+ hp->outbuf_size = outbuf_size;
+ hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))];
kobject_init(&hp->kobj);
hp->kobj.ktype = &hvc_kobj_type;
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