A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

Revert "IB/core: Add support for extended query device caps"

Browse source 
While commit 7e36ef8205 ("IB/core: Temporarily disable
ex_query_device uverb") is correct as it makes the extended
QUERY_DEVICE uverb (which came as part of commit 5a77abf9a9
("IB/core: Add support for extended query device caps") and commit
860f10a799 ("IB/core: Add flags for on demand paging support")) not
available to userspace, it doesn't address the initial issue regarding
ib_copy_to_udata() [1][2].

Additionally, further discussions around this new uverb seems to
conclude it would require a different data structure than the one
currently described in <rdma/ib_user_verbs.h> [3].

Both of these issues require a revert of the changes, so this patch
partially reverts commit 8cdd312cfe ("IB/mlx5: Implement the ODP
capability query verb") and commit 860f10a799 ("IB/core: Add flags
for on demand paging support") and fully reverts commit 5a77abf9a9
("IB/core: Add support for extended query device caps").

[1] "Re: [PATCH v3 06/17] IB/core: Add support for extended query device caps"
    http://mid.gmane.org/[email protected]

[2] "Re: [PATCH] IB/core: Temporarily disable ex_query_device uverb"
    http://mid.gmane.org/[email protected]

[3] "RE: [PATCH v1 1/5] IB/uverbs: ex_query_device: answer must not depend on request's comp_mask"
    http://mid.gmane.org/2807E5FD2F6FDA4886F6618EAC48510E0CC12C30@CRSMSX101.amr.corp.intel.com

Cc: Eli Cohen <[email protected]>
Cc: Haggai Eran <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Shachar Raindel <[email protected]>
Signed-off-by: Yann Droneaud <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Yann Droneaud 2015-02-05 22:10:18 +01:00 • committed by Roland Dreier
commit 43c6116573
5 changed files with 42 additions and 130 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/rdma/ib_verbs.h
View file

@ -1707,10 +1707,7 @@ static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t
static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len)
{
size_t copy_sz;
copy_sz = min_t(size_t, len, udata->outlen);
return copy_to_user(udata->outbuf, src, copy_sz) ? -EFAULT : 0;
return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
}
/**