superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

vhost: vringh: Remove unused iotlb functions 

The functions:
  vringh_abandon_iotlb()
  vringh_notify_disable_iotlb() and
  vringh_notify_enable_iotlb()

were added in 2020 by
commit 9ad9c49cfe ("vringh: IOTLB support")
but have remained unused.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Message-Id: <20250617001838.114457-2-linux@treblig.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
pull/1320/head
Dr. David Alan Gilbert 2025-06-17 01:18:36 +01:00 committed by Michael S. Tsirkin
parent 69cd720a8a
commit 569c392e19
2 changed files with 0 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/vhost/vringh.c
View File

@ -1534,23 +1534,6 @@ ssize_t vringh_iov_push_iotlb(struct vringh *vrh,
}
EXPORT_SYMBOL(vringh_iov_push_iotlb);
/**
* vringh_abandon_iotlb - we've decided not to handle the descriptor(s).
* @vrh: the vring.
* @num: the number of descriptors to put back (ie. num
* vringh_get_iotlb() to undo).
*
* The next vringh_get_iotlb() will return the old descriptor(s) again.
*/
void vringh_abandon_iotlb(struct vringh *vrh, unsigned int num)
{
/* We only update vring_avail_event(vr) when we want to be notified,
* so we haven't changed that yet.
*/
vrh->last_avail_idx -= num;
}
EXPORT_SYMBOL(vringh_abandon_iotlb);
/**
* vringh_complete_iotlb - we've finished with descriptor, publish it.
* @vrh: the vring.
@ -1571,32 +1554,6 @@ int vringh_complete_iotlb(struct vringh *vrh, u16 head, u32 len)
}
EXPORT_SYMBOL(vringh_complete_iotlb);
/**
* vringh_notify_enable_iotlb - we want to know if something changes.
* @vrh: the vring.
*
* This always enables notifications, but returns false if there are
* now more buffers available in the vring.
*/
bool vringh_notify_enable_iotlb(struct vringh *vrh)
{
return __vringh_notify_enable(vrh, getu16_iotlb, putu16_iotlb);
}
EXPORT_SYMBOL(vringh_notify_enable_iotlb);
/**
* vringh_notify_disable_iotlb - don't tell us if something changes.
* @vrh: the vring.
*
* This is our normal running state: we disable and then only enable when
* we're going to sleep.
*/
void vringh_notify_disable_iotlb(struct vringh *vrh)
{
__vringh_notify_disable(vrh, putu16_iotlb);
}
EXPORT_SYMBOL(vringh_notify_disable_iotlb);
/**
* vringh_need_notify_iotlb - must we tell the other side about used buffers?
* @vrh: the vring we've called vringh_complete_iotlb() on.

5
include/linux/vringh.h
View File

@ -319,13 +319,8 @@ ssize_t vringh_iov_push_iotlb(struct vringh *vrh,
struct vringh_kiov *wiov,
const void *src, size_t len);
void vringh_abandon_iotlb(struct vringh *vrh, unsigned int num);
int vringh_complete_iotlb(struct vringh *vrh, u16 head, u32 len);
bool vringh_notify_enable_iotlb(struct vringh *vrh);
void vringh_notify_disable_iotlb(struct vringh *vrh);
int vringh_need_notify_iotlb(struct vringh *vrh);
#endif /* CONFIG_VHOST_IOTLB */