When Block Device Layer is disabled, BLK_MAX_SEGMENT_SIZE is undefined.
The rtrs is a transport library and should compile independently of the
block layer. The desired max segment size should be passed down by the
user.
Introduce max_segment_size parameter for the rtrs_clt_open() call.
Fixes: f7a7a5c228 ("block/rnbd: client: main functionality")
Fixes: 6a98d71dae ("RDMA/rtrs: client: main functionality")
Fixes: cb80329c94 ("RDMA/rtrs: client: private header with client structs and functions")
Fixes: b5c27cdb09 ("RDMA/rtrs: public interface header to establish RDMA connections")
Link: https://lore.kernel.org/r/20200519111419.924170-1-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fix to return negative error code -ENOMEM from the some error handling
cases instead of 0, as done elsewhere in this function.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Fixes: 91b11610af ("RDMA/rtrs: server: sysfs interface functions")
Link: https://lore.kernel.org/r/20200519091912.134358-1-weiyongjun1@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Remove the if-statement and return the value contained in _err_,
unconditionally.
Link: https://lore.kernel.org/r/20200519163612.GA6043@embeddedor
Addresses-Coverity-ID: 1493753 ("Identical code for different branches")
Fixes: 6a98d71dae ("RDMA/rtrs: client: main functionality")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
These > comparisons should be >= to prevent accessing one element beyond
the end of the buffer.
Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20200519154525.GA66801@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The problem is that "req->sg_cnt" is an unsigned int so if "nr" is
negative, it gets type promoted to a high positive value and the condition
is false. This patch fixes it by handling negatives separately.
Fixes: 6a98d71dae ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/20200519133223.GN2078@kadam
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Support adding header modifying actions to the RDMA TX flow table.
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Only mlx5_core driver handles fw initialization check and command
interface revision check.
Hence move them inside the mlx5_core driver where it is used.
This avoid exposing these helpers to all mlx5 drivers.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Remove the "metadata_reg_b" field and all uses of this field in code
to match the device specification. As this field is not in use in SW
steering it is safe to remove it.
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Avoid disabling device management for devices that don't support
Management datagrams (MADs) by checking if the "mad_agent" pointer is
initialized before calling ib_modify_port, also fix the error flow in
srpt_refresh_port() to disable device management if
ib_register_mad_agent() fail.
Fixes: 09f8a1486d ("RDMA/srpt: Fix handling of SR-IOV and iWARP ports")
Link: https://lore.kernel.org/r/20200514114720.141139-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Current description doesn't include new devices, change it by updating to
have more generic description and remove DRIVER_NAME and DRIVER_VERSION
defines.
Link: https://lore.kernel.org/r/20200513095304.210240-1-leon@kernel.org
Signed-off-by: Shay Drory <shayd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When I cat module parameter 'srpt_service_guid', it displays as follows.
It is better to add a newline for easy reading.
[root@hulk-202 ~]# cat /sys/module/ib_srpt/parameters/srpt_service_guid
0x0205cdfffe8346b9[root@hulk-202 ~]#
Link: https://lore.kernel.org/r/1589182629-27743-1-git-send-email-wangxiongfeng2@huawei.com
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The uverbs layer largely duplicate the code in ib_create_srq(), with the
slight difference that it passes in a udata. Move all the code together
into ib_create_srq_user() and provide an inline for kernel users, similar
to other create calls.
Link: https://lore.kernel.org/r/20200506082444.14502-6-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fix create WQ to use the given user handle, in addition dropped some
duplicated code from this flow.
Fixes: fd3c7904db ("IB/core: Change idr objects to use the new schema")
Fixes: f213c05272 ("IB/uverbs: Add WQ support")
Link: https://lore.kernel.org/r/20200506082444.14502-9-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Both wq_context and srq_context are some leftover from the past in uverbs
layer, they are not really in use, drop them.
Link: https://lore.kernel.org/r/20200506082444.14502-5-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Wolfram Sang has asked to have this included in 5.7 so the deprecated
API can be removed next release. There should be no functional
difference.
I think that entire this section of code can be removed; it is leftover
from other things that have since changed, but this is the safer thing
to do for now. The full removal can happen next release.
Thanks,
-corey
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Merge tag 'for-linus-5.7-2' of git://github.com/cminyard/linux-ipmi
Pull IPMI update from Corey Minyard:
"Convert i2c_new_device() to i2c_new_client_device()
Wolfram Sang has asked to have this included in 5.7 so the deprecated
API can be removed next release. There should be no functional
difference.
I think that entire this section of code can be removed; it is
leftover from other things that have since changed, but this is the
safer thing to do for now. The full removal can happen next release"
* tag 'for-linus-5.7-2' of git://github.com/cminyard/linux-ipmi:
char: ipmi: convert to use i2c_new_client_device()
Danil and I will maintain RNBD/RTRS modules.
Link: https://lore.kernel.org/r/20200511135131.27580-26-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
README with description of major sysfs entries, sysfs documentation
are moved to ABI dir as Bart suggested.
Link: https://lore.kernel.org/r/20200511135131.27580-25-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is the sysfs interface to rnbd mapped devices on server side:
/sys/class/rnbd-server/ctl/devices/<device_name>/
|- block_dev
| *** link pointing to the corresponding block device sysfs entry
|
|- sessions/<session-name>/
| *** sessions directory
|
|- read_only
| *** is devices mapped as read only
|
|- mapping_path
*** relative device path provided by the client during mapping
Link: https://lore.kernel.org/r/20200511135131.27580-23-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This provides helper functions for IO submitting to block dev.
Link: https://lore.kernel.org/r/20200511135131.27580-22-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is main functionality of rnbd-server module, which handles RTRS
events and rnbd protocol requests, like map (open) or unmap (close)
device. Also server side is responsible for processing incoming IBTRS IO
requests and forward them to local mapped devices.
Link: https://lore.kernel.org/r/20200511135131.27580-21-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This header describes main structs and functions used by rnbd-server
module, namely structs for managing sessions from different clients and
mapped (opened) devices.
Link: https://lore.kernel.org/r/20200511135131.27580-20-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is the sysfs interface to rnbd block devices on client side:
/sys/class/rnbd-client/ctl/
|- map_device
| *** maps remote device
|
|- devices/
*** all mapped devices
/sys/block/rnbd<N>/rnbd/
|- unmap_device
| *** unmaps device
|
|- state
| *** device state
|
|- session
| *** session name
|
|- mapping_path
*** path of the dev that was mapped on server
Link: https://lore.kernel.org/r/20200511135131.27580-19-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is main functionality of rnbd-client module, which provides interface
to map remote device as local block device /dev/rnbd<N> and feeds RTRS
with IO requests.
Link: https://lore.kernel.org/r/20200511135131.27580-18-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This header describes main structs and functions used by rnbd-client
module, mainly for managing RNBD sessions and mapped block devices,
creating and destroying sysfs entries.
Link: https://lore.kernel.org/r/20200511135131.27580-17-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
These are common private headers with rnbd protocol structures, logging,
sysfs and other helper functions, which are used on both client and server
sides.
Link: https://lore.kernel.org/r/20200511135131.27580-16-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add rtrs Makefile, Kconfig and also corresponding lines into upper layer
infiniband/ulp files.
Link: https://lore.kernel.org/r/20200511135131.27580-14-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is the sysfs interface to rtrs sessions on server side:
/sys/class/rtrs-server/<SESS-NAME>/
*** rtrs session accepted from a client peer
|
|- paths/<SRC@DST>/
*** established paths from a client in a session
|
|- disconnect
| *** disconnect path
|
|- hca_name
| *** HCA name
|
|- hca_port
| *** HCA port
|
|- stats/
*** current path statistics
|
|- rdma
Link: https://lore.kernel.org/r/20200511135131.27580-13-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This introduces set of functions used on server side to account statistics
of RDMA data sent/received.
Link: https://lore.kernel.org/r/20200511135131.27580-12-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is main functionality of rtrs-server module, which accepts set of
RDMA connections (so called rtrs session), creates/destroys sysfs entries
associated with rtrs session and notifies upper layer
(user of RTRS API) about RDMA requests or link events.
Link: https://lore.kernel.org/r/20200511135131.27580-11-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This header describes main structs and functions used by rtrs-server
module, mainly for accepting rtrs sessions, creating/destroying sysfs
entries, accounting statistics on server side.
Link: https://lore.kernel.org/r/20200511135131.27580-10-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is the sysfs interface to rtrs sessions on client side:
/sys/class/rtrs-client/<SESS-NAME>/
*** rtrs session created by rtrs_clt_open() API call
|
|- max_reconnect_attempts
| *** number of reconnect attempts for session
|
|- add_path
| *** adds another connection path into rtrs session
|
|- paths/<SRC@DST>/
*** established paths to server in a session
|
|- disconnect
| *** disconnect path
|
|- reconnect
| *** reconnect path
|
|- remove_path
| *** remove current path
|
|- state
| *** retrieve current path state
|
|- hca_port
| *** HCA port number
|
|- hca_name
| *** HCA name
|
|- stats/
*** current path statistics
|
|- cpu_migration
|- rdma
|- reconnects
|- reset_all
Link: https://lore.kernel.org/r/20200511135131.27580-9-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This introduces set of functions used on client side to account statistics
of RDMA data sent/received, amount of IOs inflight, latency, cpu
migrations, etc. Almost all statistics are collected using percpu
variables.
Link: https://lore.kernel.org/r/20200511135131.27580-8-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is main functionality of rtrs-client module, which manages set of
RDMA connections for each rtrs session, does multipathing, load balancing
and failover of RDMA requests.
Link: https://lore.kernel.org/r/20200511135131.27580-7-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This header describes main structs and functions used by rtrs-client
module, mainly for managing rtrs sessions, creating/destroying sysfs
entries, accounting statistics on client side.
Link: https://lore.kernel.org/r/20200511135131.27580-6-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is a set of library functions existing as a rtrs-core module, used by
client and server modules.
Mainly these functions wrap IB and RDMA calls and provide a bit higher
abstraction for implementing of RTRS protocol on client or server sides.
Link: https://lore.kernel.org/r/20200511135131.27580-5-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
These are common private headers with rtrs protocol structures, logging,
sysfs and other helper functions, which are used on both client and server
sides.
Link: https://lore.kernel.org/r/20200511135131.27580-4-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Introduce public header which provides set of API functions to establish
RDMA connections from client to server machine using RTRS protocol, which
manages RDMA connections for each session, does multipathing and load
balancing.
Main functions for client (active) side:
rtrs_clt_open() - Creates set of RDMA connections incapsulated
in IBTRS session and returns pointer on RTRS
session object.
rtrs_clt_close() - Closes RDMA connections associated with RTRS
session.
rtrs_clt_request() - Requests zero-copy RDMA transfer to/from
server.
Main functions for server (passive) side:
rtrs_srv_open() - Starts listening for RTRS clients on specified
port and invokes RTRS callbacks for incoming
RDMA requests or link events.
rtrs_srv_close() - Closes RTRS server context.
Link: https://lore.kernel.org/r/20200511135131.27580-3-danil.kipnis@cloud.ionos.com
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Function is going to be used in transport over RDMA module in subsequent
patches, so export it to GPL modules.
Link: https://lore.kernel.org/r/20200511135131.27580-2-danil.kipnis@cloud.ionos.com
Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: linux-kernel@vger.kernel.org
[jwang: extend the commit message]
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
fix:
- A handful of TI driver fixes for bad of_node_put() and incorrect
parent names
- Rockchip rk3228 aclk_gpu* creation was interfering with lima GPU work
so we use a composite clk now
- Resuming from suspend on Tegra Jetson TK1 was broken because an audio
PLL calculated an incorrect rate
- A fix for devicetree probing on IM-PD1 by actually specifying a clk
name which is required to pass clk registration
- Avoid list corruption if registration fails for a critical clk
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Some more clk driver fixes and one core framework fix:
- A handful of TI driver fixes for bad of_node_put() and incorrect
parent names
- Rockchip rk3228 aclk_gpu* creation was interfering with lima GPU
work so we use a composite clk now
- Resuming from suspend on Tegra Jetson TK1 was broken because an
audio PLL calculated an incorrect rate
- A fix for devicetree probing on IM-PD1 by actually specifying a clk
name which is required to pass clk registration
- Avoid list corruption if registration fails for a critical clk"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: ti: clkctrl: convert subclocks to use proper names also
clk: ti: am33xx: fix RTC clock parent
clk: ti: clkctrl: Fix Bad of_node_put within clkctrl_get_name
clk: tegra: Fix initial rate for pll_a on Tegra124
clk: impd1: Look up clock-output-names
clk: Unlink clock if failed to prepare or enable
clk: rockchip: fix incorrect configuration of rk3228 aclk_gpu* clocks
Here are a number of USB fixes for 5.7-rc6
The "largest" in here is a bunch of raw-gadget fixes and api changes as
the driver just showed up in -rc1 and work has been done to fix up some
uapi issues found with the original submission, before it shows up in a
-final release.
Other than that, a bunch of other small USB gadget fixes, xhci fixes,
some quirks, andother tiny fixes for reported issues.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB fixes for 5.7-rc6
The "largest" in here is a bunch of raw-gadget fixes and api changes
as the driver just showed up in -rc1 and work has been done to fix up
some uapi issues found with the original submission, before it shows
up in a -final release.
Other than that, a bunch of other small USB gadget fixes, xhci fixes,
some quirks, andother tiny fixes for reported issues.
All of these have been in linux-next with no reported issues"
* tag 'usb-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
USB: gadget: fix illegal array access in binding with UDC
usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
USB: usbfs: fix mmap dma mismatch
usb: host: xhci-plat: keep runtime active when removing host
usb: xhci: Fix NULL pointer dereference when enqueuing trbs from urb sg list
usb: cdns3: gadget: make a bunch of functions static
usb: mtu3: constify struct debugfs_reg32
usb: gadget: udc: atmel: Make some symbols static
usb: raw-gadget: fix null-ptr-deref when reenabling endpoints
usb: raw-gadget: documentation updates
usb: raw-gadget: support stalling/halting/wedging endpoints
usb: raw-gadget: fix gadget endpoint selection
usb: raw-gadget: improve uapi headers comments
usb: typec: mux: intel: Fix DP_HPD_LVL bit field
usb: raw-gadget: fix return value of ep read ioctls
usb: dwc3: select USB_ROLE_SWITCH
usb: gadget: legacy: fix error return code in gncm_bind()
usb: gadget: legacy: fix error return code in cdc_bind()
usb: gadget: legacy: fix redundant initialization warnings
usb: gadget: tegra-xudc: Fix idle suspend/resume
...
Pull execve fix from Eric Biederman:
"While working on my exec cleanups I found a bug in exec that I
introduced by accident a couple of years ago. I apparently missed the
fact that bprm->file can change.
Now I have a very personal motive to clean up exec and make it more
approachable.
The change is just moving woud_dump to where it acts on the final
bprm->file not the initial bprm->file. I have been careful and tested
and verify this fix works"
* 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
exec: Move would_dump into flush_old_exec
tells the unwinding code whether a stack trace can be trusted or not is
always set correctly. This was messed up by a couple of changes in the
recent past.
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Merge tag 'objtool-urgent-2020-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 stack unwinding fix from Thomas Gleixner:
"A single bugfix for the ORC unwinder to ensure that the error flag
which tells the unwinding code whether a stack trace can be trusted or
not is always set correctly.
This was messed up by a couple of changes in the recent past"
* tag 'objtool-urgent-2020-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/orc: Fix error handling in __unwind_start()
stack protector enabled.
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Merge tag 'x86_urgent_for_v5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"A single fix for early boot crashes of kernels built with gcc10 and
stack protector enabled"
* tag 'x86_urgent_for_v5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Fix early boot crash on gcc-10, third try
I goofed when I added mm->user_ns support to would_dump. I missed the
fact that in the case of binfmt_loader, binfmt_em86, binfmt_misc, and
binfmt_script bprm->file is reassigned. Which made the move of
would_dump from setup_new_exec to __do_execve_file before exec_binprm
incorrect as it can result in would_dump running on the script instead
of the interpreter of the script.
The net result is that the code stopped making unreadable interpreters
undumpable. Which allows them to be ptraced and written to disk
without special permissions. Oops.
The move was necessary because the call in set_new_exec was after
bprm->mm was no longer valid.
To correct this mistake move the misplaced would_dump from
__do_execve_file into flos_old_exec, before exec_mmap is called.
I tested and confirmed that without this fix I can attach with gdb to
a script with an unreadable interpreter, and with this fix I can not.
Cc: stable@vger.kernel.org
Fixes: f84df2a6f2 ("exec: Ensure mm->user_ns contains the execed files")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
bugs, mostly for AMD processors. And a few other x86 fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A new testcase for guest debugging (gdbstub) that exposed a bunch of
bugs, mostly for AMD processors. And a few other x86 fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce
KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c
KVM: SVM: Disable AVIC before setting V_IRQ
KVM: Introduce kvm_make_all_cpus_request_except()
KVM: VMX: pass correct DR6 for GD userspace exit
KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6
KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
KVM: nSVM: trap #DB and #BP to userspace if guest debugging is on
KVM: selftests: Add KVM_SET_GUEST_DEBUG test
KVM: X86: Fix single-step with KVM_SET_GUEST_DEBUG
KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG
KVM: x86: fix DR6 delivery for various cases of #DB injection
KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly
A fix for unrecoverable SLB faults in the interrupt exit path, introduced by the
recent rewrite of interrupt exit in C.
Four fixes for our KUAP (Kernel Userspace Access Prevention) support on 64-bit.
These are all fairly minor with the exception of the change to evaluate the
get/put_user() arguments before we enable user access, which reduces the amount
of code we run with user access enabled.
A fix for our secure boot IMA rules, if enforcement of module signatures is
enabled at runtime rather than build time.
A fix to our 32-bit VDSO clock_getres() which wasn't falling back to the syscall
for unknown clocks.
A build fix for CONFIG_PPC_KUAP_DEBUG on 32-bit BookS, and another for 40x.
Thanks to:
Christophe Leroy, Hugh Dickins, Nicholas Piggin, Aurelien Jarno, Mimi Zohar,
Nayna Jain.
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Merge tag 'powerpc-5.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- A fix for unrecoverable SLB faults in the interrupt exit path,
introduced by the recent rewrite of interrupt exit in C.
- Four fixes for our KUAP (Kernel Userspace Access Prevention) support
on 64-bit. These are all fairly minor with the exception of the
change to evaluate the get/put_user() arguments before we enable user
access, which reduces the amount of code we run with user access
enabled.
- A fix for our secure boot IMA rules, if enforcement of module
signatures is enabled at runtime rather than build time.
- A fix to our 32-bit VDSO clock_getres() which wasn't falling back to
the syscall for unknown clocks.
- A build fix for CONFIG_PPC_KUAP_DEBUG on 32-bit BookS, and another
for 40x.
Thanks to: Christophe Leroy, Hugh Dickins, Nicholas Piggin, Aurelien
Jarno, Mimi Zohar, Nayna Jain.
* tag 'powerpc-5.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/40x: Make more space for system call exception
powerpc/vdso32: Fallback on getres syscall when clock is unknown
powerpc/32s: Fix build failure with CONFIG_PPC_KUAP_DEBUG
powerpc/ima: Fix secure boot rules in ima arch policy
powerpc/64s/kuap: Restore AMR in fast_interrupt_return
powerpc/64s/kuap: Restore AMR in system reset exception
powerpc/64/kuap: Move kuap checks out of MSR[RI]=0 regions of exit code
powerpc/64s: Fix unrecoverable SLB crashes due to preemption check
powerpc/uaccess: Evaluate macro arguments once, before user access is allowed
