korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 08:14:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

IB/core: Don't use is_async in event files to infer events size

Browse Source 
Previously, we inferred the events size in ib_uverbs_event_read by
using the is_async flag. Instead of that, we pass the event size
directly.

Fixes: 1e7710f3f6 ('IB/core: Change completion channel to use the reworked objects schema')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Matan Barak 2017-04-18 12:03:41 +03:00 committed by Doug Ledford
parent c52d8114d1
commit e0fcc61113
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/infiniband/core/uverbs_main.c
View File

@ -257,10 +257,9 @@ static ssize_t ib_uverbs_event_read(struct ib_uverbs_event_file *file,
struct ib_uverbs_file *uverbs_file,
struct file *filp, char __user *buf,
size_t count, loff_t *pos,
bool is_async)
size_t eventsz)
{
struct ib_uverbs_event *event;
int eventsz;
int ret = 0;
spin_lock_irq(&file->lock);
@ -290,11 +289,6 @@ static ssize_t ib_uverbs_event_read(struct ib_uverbs_event_file *file,
event = list_entry(file->event_list.next, struct ib_uverbs_event, list);
if (is_async)
eventsz = sizeof (struct ib_uverbs_async_event_desc);
else
eventsz = sizeof (struct ib_uverbs_comp_event_desc);
if (eventsz > count) {
ret = -EINVAL;
event = NULL;
@ -326,7 +320,8 @@ static ssize_t ib_uverbs_async_event_read(struct file *filp, char __user *buf,
struct ib_uverbs_async_event_file *file = filp->private_data;
return ib_uverbs_event_read(&file->ev_file, file->uverbs_file, filp,
buf, count, pos, true);
buf, count, pos,
sizeof(struct ib_uverbs_async_event_desc));
}
static ssize_t ib_uverbs_comp_event_read(struct file *filp, char __user *buf,
@ -337,7 +332,8 @@ static ssize_t ib_uverbs_comp_event_read(struct file *filp, char __user *buf,
return ib_uverbs_event_read(&comp_ev_file->ev_file,
comp_ev_file->uobj_file.ufile, filp,
buf, count, pos, false);
buf, count, pos,
sizeof(struct ib_uverbs_comp_event_desc));
}
static unsigned int ib_uverbs_event_poll(struct ib_uverbs_event_file *file,