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vfio/mdpy: Use mdev_get_type_group_id() 

commit adc9d1f6f5 upstream.

The mdpy_types array is parallel to the supported_type_groups array, so
the type_group_id indexes both. Instead of doing string searching just
directly index with type_group_id in all places.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <13-v2-d36939638fc6+d54-vfio2_jgg@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Chen Zhuo <sagazchen@tencent.com>
Signed-off-by: Xinghui Li <korantli@tencent.com>
This commit is contained in:
Jason Gunthorpe 2021-04-06 16:40:36 -03:00 committed by Jianping Liu
parent 5d9893c969
commit ec136c9c6c
1 changed files with 6 additions and 16 deletions
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22
samples/vfio-mdev/mdpy.c
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@ -99,16 +99,6 @@ struct mdev_state {
void *memblk;
};
static const struct mdpy_type *mdpy_find_type(struct kobject *kobj)
{
int i;
for (i = 0; i < ARRAY_SIZE(mdpy_types); i++)
if (strcmp(mdpy_types[i].name, kobj->name) == 0)
return mdpy_types + i;
return NULL;
}
static void mdpy_create_config_space(struct mdev_state *mdev_state)
{
STORE_LE16((u16 *) &mdev_state->vconfig[PCI_VENDOR_ID],
@ -228,7 +218,8 @@ static int mdpy_reset(struct mdev_device *mdev)
static int mdpy_create(struct kobject *kobj, struct mdev_device *mdev)
{
const struct mdpy_type *type = mdpy_find_type(kobj);
const struct mdpy_type *type =
&mdpy_types[mdev_get_type_group_id(mdev)];
struct device *dev = mdev_dev(mdev);
struct mdev_state *mdev_state;
u32 fbsize;
@ -246,8 +237,6 @@ static int mdpy_create(struct kobject *kobj, struct mdev_device *mdev)
return -ENOMEM;
}
if (!type)
type = &mdpy_types[0];
fbsize = roundup_pow_of_two(type->width * type->height * type->bytepp);
mdev_state->memblk = vmalloc_user(fbsize);
@ -256,8 +245,8 @@ static int mdpy_create(struct kobject *kobj, struct mdev_device *mdev)
kfree(mdev_state);
return -ENOMEM;
}
dev_info(dev, "%s: %s (%dx%d)\n",
__func__, kobj->name, type->width, type->height);
dev_info(dev, "%s: %s (%dx%d)\n", __func__, type->name, type->width,
type->height);
mutex_init(&mdev_state->ops_lock);
mdev_state->mdev = mdev;
@ -673,7 +662,8 @@ static MDEV_TYPE_ATTR_RO(name);
static ssize_t
description_show(struct kobject *kobj, struct device *dev, char *buf)
{
const struct mdpy_type *type = mdpy_find_type(kobj);
const struct mdpy_type *type =
&mdpy_types[mtype_get_type_group_id(kobj)];
return sprintf(buf, "virtual display, %dx%d framebuffer\n",
type ? type->width : 0,