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-rw-r--r--drivers/char/hvc_console.c14
-rw-r--r--drivers/char/hvc_console.h2
-rw-r--r--drivers/char/hvc_iseries.c3
-rw-r--r--drivers/char/hvc_rtas.c2
-rw-r--r--drivers/char/hvc_vio.c3
5 files changed, 15 insertions, 9 deletions
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index ca2f538e549e..dbee8bed0530 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;
@@ -505,7 +506,7 @@ 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 +539,7 @@ 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)
@@ -728,12 +729,13 @@ 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);
@@ -742,6 +744,8 @@ 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;
diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h
index 96b7401319c1..8c59818050e6 100644
--- a/drivers/char/hvc_console.h
+++ b/drivers/char/hvc_console.h
@@ -56,7 +56,7 @@ extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops);
/* register a vterm for hvc tty operation (module_init or hotplug add) */
extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq,
- struct hv_ops *ops);
+ struct hv_ops *ops, int outbuf_size);
/* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */
extern int __devexit hvc_remove(struct hvc_struct *hp);
diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c
index 256afc8e5838..4747729459c7 100644
--- a/drivers/char/hvc_iseries.c
+++ b/drivers/char/hvc_iseries.c
@@ -221,7 +221,8 @@ static int __devinit hvc_vio_probe(struct vio_dev *vdev,
pi = &port_info[vdev->unit_address];
- hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops);
+ hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops,
+ VIOCHAR_MAX_DATA);
if (IS_ERR(hp))
return PTR_ERR(hp);
pi->hp = hp;
diff --git a/drivers/char/hvc_rtas.c b/drivers/char/hvc_rtas.c
index 57106e02fd2e..4b97eaf18602 100644
--- a/drivers/char/hvc_rtas.c
+++ b/drivers/char/hvc_rtas.c
@@ -94,7 +94,7 @@ static int hvc_rtas_init(void)
/* Allocate an hvc_struct for the console device we instantiated
* earlier. Save off hp so that we can return it on exit */
- hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops);
+ hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index 9add81ceb440..651e5d25f58b 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -90,7 +90,8 @@ static int __devinit hvc_vio_probe(struct vio_dev *vdev,
if (!vdev || !id)
return -EPERM;
- hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops);
+ hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops,
+ MAX_VIO_PUT_CHARS);
if (IS_ERR(hp))
return PTR_ERR(hp);
dev_set_drvdata(&vdev->dev, hp);