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Author SHA1 Message Date
David S. Miller
4fa331b45d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Fix PPPoE and QinQ with flowtable inet family.

2) Missing register validation in nf_tables.

3) Initialize registers to avoid stack memleak to userspace.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-18 10:33:47 +00:00
David S. Miller
5edce15138 mlx5-updates-2022-03-17
1) From Maxim Mikityanskiy,
    Datapath improvements in preparation for XDP multi buffer
 
    This series contains general improvements for the datapath that are
    useful for the upcoming XDP multi buffer support:
 
    a. Non-linear legacy RQ: validate MTU for robustness, build the linear
       part of SKB over the first hardware fragment (instead of copying the
       packet headers), adjust headroom calculations to allow enabling headroom
       in the non-linear mode (useful for XDP multi buffer).
 
    b. XDP: do the XDP program test before function call, optimize
       parameters of mlx5e_xdp_handle.
 
 2) From Rongwei Liu, DR, reduce steering memory usage
    Currently, mlx5 driver uses mlx5_htbl/chunk/ste to organize
    steering logic. However there is a little memory waste.
 
    This update targets to reduce steering memory footprint by:
    a. Adjust struct member layout.
    b. Remove duplicated indicator by using simple functions call.
 
    With 500k TX rules(3 ste) plus 500k RX rules(6 stes), these patches
    can save around 17% memory.
 
 3) Three cleanup commits at the end of this series.
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Merge tag 'mlx5-updates-2022-03-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2022-03-17

1) From Maxim Mikityanskiy,
   Datapath improvements in preparation for XDP multi buffer

   This series contains general improvements for the datapath that are
   useful for the upcoming XDP multi buffer support:

   a. Non-linear legacy RQ: validate MTU for robustness, build the linear
      part of SKB over the first hardware fragment (instead of copying the
      packet headers), adjust headroom calculations to allow enabling headroom
      in the non-linear mode (useful for XDP multi buffer).

   b. XDP: do the XDP program test before function call, optimize
      parameters of mlx5e_xdp_handle.

2) From Rongwei Liu, DR, reduce steering memory usage
   Currently, mlx5 driver uses mlx5_htbl/chunk/ste to organize
   steering logic. However there is a little memory waste.

   This update targets to reduce steering memory footprint by:
   a. Adjust struct member layout.
   b. Remove duplicated indicator by using simple functions call.

   With 500k TX rules(3 ste) plus 500k RX rules(6 stes), these patches
   can save around 17% memory.

3) Three cleanup commits at the end of this series.
===================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-18 10:30:00 +00:00
Daniel Mack
d14eb80e27 drm/panel: ili9341: fix optional regulator handling
If the optional regulator lookup fails, reset the pointer to NULL.
Other functions such as mipi_dbi_poweron_reset_conditional() only do
a NULL pointer check and will otherwise dereference the error pointer.

Fixes: 5a04227326 ("drm/panel: Add ilitek ili9341 panel driver")
Signed-off-by: Daniel Mack <daniel@zonque.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220317225537.826302-1-daniel@zonque.org
2022-03-18 11:08:42 +01:00
David Howells
ab487a4cdf afs: Maintain netfs_i_context::remote_i_size
Make afs use netfslib's tracking for the server's idea of what the current
inode size is independently of inode->i_size.  We really want to use this
value when calculating the new vnode size when initiating a StoreData RPC
op rather than the size stat() presents to the user (ie. inode->i_size) as
the latter is affected by as-yet uncommitted writes.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-afs@lists.infradead.org

Link: https://lore.kernel.org/r/164623014626.3564931.8375344024648265358.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678220204.1200972.17408022517463940584.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692923592.2099075.5466132542956550401.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
4058f74210 netfs: Keep track of the actual remote file size
Provide a place in which to keep track of the actual remote file size in
the netfs context.  This is needed because inode->i_size will be updated as
we buffer writes in the pagecache, but the server file size won't get
updated until we flush them back.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164623013727.3564931.17659955636985232717.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678219305.1200972.6459431995188365134.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692921865.2099075.5310757978508056134.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
b900f4b89b netfs: Split some core bits out into their own file
Split some core bits out into their own file.  More bits will be added to
this file later.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164623006934.3564931.17932680017894039748.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678218407.1200972.1731208226140990280.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692920944.2099075.11990502173226013856.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
16211268fc netfs: Split fs/netfs/read_helper.c
Split fs/netfs/read_helper.c into two pieces, one to deal with buffered
writes and one to deal with the I/O mechanism.

Changes
=======
ver #2)
 - Add kdoc reference to new file.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164623005586.3564931.6149556072728481767.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678217075.1200972.5101072043126828757.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692919953.2099075.7156989585513833046.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
3be01750d7 netfs: Rename read_helper.c to io.c
Rename the read_helper.c file to io.c before splitting out the buffered
read functions and some other bits.

Changes
=======
ver #2)
 - Rename read_helper.c before splitting.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164678216109.1200972.16567696909952495832.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692918076.2099075.8120961172717347610.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
93345c3ba5 netfs: Prepare to split read_helper.c
Rename netfs_rreq_unlock() to netfs_rreq_unlock_folios() to make it sound
less like it's dropping a lock on an netfs_io_request struct.

Remove the 'static' marker on netfs_rreq_unlock_folios() and declaring it
in internal.h preparatory to splitting the file.

Changes
=======
ver #2)
 - Slide this patch to after the one adding netfs_begin_read().
 - As a consequence, don't need to unstatic so many functions.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164623002861.3564931.17340149482236413375.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678215208.1200972.9761906209395002182.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692912709.2099075.4349905992838317797.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
4090b31422 netfs: Add a function to consolidate beginning a read
Add a function to do the steps needed to begin a read request, allowing
this code to be removed from several other functions and consolidated.

Changes
=======
ver #2)
 - Move before the unstaticking patch so that some functions can be left
   static.
 - Set uninitialised return code in netfs_begin_read()[1][2].
 - Fixed a refleak caused by non-removal of a get from netfs_write_begin()
   when the request submission code got moved to netfs_begin_read().
 - Use INIT_WORK() to (re-)init the request work_struct[3].

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/20220303163826.1120936-1-nathan@kernel.org/ [1]
Link: https://lore.kernel.org/r/20220303235647.1297171-1-colin.i.king@gmail.com/ [2]
Link: https://lore.kernel.org/r/9d69be49081bccff44260e4c6e0049c63d6d04a1.camel@redhat.com/ [3]
Link: https://lore.kernel.org/r/164623004355.3564931.7275693529042495641.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678214287.1200972.16734134007649832160.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692911113.2099075.1060868473229451371.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:29:05 +00:00
David Howells
bc899ee1c8 netfs: Add a netfs inode context
Add a netfs_i_context struct that should be included in the network
filesystem's own inode struct wrapper, directly after the VFS's inode
struct, e.g.:

	struct my_inode {
		struct {
			/* These must be contiguous */
			struct inode		vfs_inode;
			struct netfs_i_context	netfs_ctx;
		};
	};

The netfs_i_context struct so far contains a single field for the network
filesystem to use - the cache cookie:

	struct netfs_i_context {
		...
		struct fscache_cookie	*cache;
	};

Three functions are provided to help with this:

 (1) void netfs_i_context_init(struct inode *inode,
			       const struct netfs_request_ops *ops);

     Initialise the netfs context and set the operations.

 (2) struct netfs_i_context *netfs_i_context(struct inode *inode);

     Find the netfs context from the VFS inode.

 (3) struct inode *netfs_inode(struct netfs_i_context *ctx);

     Find the VFS inode from the netfs context.

Changes
=======
ver #4)
 - Fix netfs_is_cache_enabled() to check cookie->cache_priv to see if a
   cache is present[3].
 - Fix netfs_skip_folio_read() to zero out all of the page, not just some
   of it[3].

ver #3)
 - Split out the bit to move ceph cap-getting on readahead into
   ceph_init_request()[1].
 - Stick in a comment to the netfs inode structs indicating the contiguity
   requirements[2].

ver #2)
 - Adjust documentation to match.
 - Use "#if IS_ENABLED()" in netfs_i_cookie(), not "#ifdef".
 - Move the cap check from ceph_readahead() to ceph_init_request() to be
   called from netfslib.
 - Remove ceph_readahead() and use  netfs_readahead() directly instead.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/8af0d47f17d89c06bbf602496dd845f2b0bf25b3.camel@kernel.org/ [1]
Link: https://lore.kernel.org/r/beaf4f6a6c2575ed489adb14b257253c868f9a5c.camel@kernel.org/ [2]
Link: https://lore.kernel.org/r/3536452.1647421585@warthog.procyon.org.uk/ [3]
Link: https://lore.kernel.org/r/164622984545.3564931.15691742939278418580.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678213320.1200972.16807551936267647470.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692909854.2099075.9535537286264248057.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/306388.1647595110@warthog.procyon.org.uk/ # v4
2022-03-18 09:29:05 +00:00
David Howells
a5c9dc4451 ceph: Make ceph_init_request() check caps on readahead
Move the caps check from ceph_readahead() to ceph_init_request(),
conditional on the origin being NETFS_READAHEAD so that in a future patch,
ceph can point its ->readahead() vector directly at netfs_readahead().

Changes
=======
ver #4)
 - Move the check for NETFS_READAHEAD up in ceph_init_request()[2].

ver #3)
 - Split from the patch to add a netfs inode context[1].
 - Need to store the caps got in rreq->netfs_priv for later freeing.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: ceph-devel@vger.kernel.org
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/8af0d47f17d89c06bbf602496dd845f2b0bf25b3.camel@kernel.org/ [1]
Link: https://lore.kernel.org/r/dd054c962818716e718bd9b446ee5322ca097675.camel@redhat.com/ [2]
Link: https://lore.kernel.org/r/164692907694.2099075.10081819855690054094.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/2533821.1647006574@warthog.procyon.org.uk/ # v4
2022-03-18 09:27:13 +00:00
David Howells
2de1604173 netfs: Change ->init_request() to return an error code
Change the request initialisation function to return an error code so that
the network filesystem can return a failure (ENOMEM, for example).

This will also allow ceph to abort a ->readahead() op if the server refuses
to give it a cap allowing local caching from within the netfslib framework
(errors aren't passed back through ->readahead(), so returning, say,
-ENOBUFS will cause the op to be aborted).

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164678212401.1200972.16537041523832944934.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692905398.2099075.5238033621684646524.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
663dfb65c3 netfs: Refactor arguments for netfs_alloc_read_request
Pass start and len to the rreq allocator. This should ensure that the
fields are set so that ->init_request() can use them.

Also add a parameter to indicates the origin of the request.  Ceph can use
this to tell whether to get caps.

Changes
=======
ver #3)
 - Change the author to me as Jeff feels that most of the patch is my
   changes now.

ver #2)
 - Show the request origin in the netfs_rreq tracepoint.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Co-developed-by: David Howells <dhowells@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622989020.3564931.17517006047854958747.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678208569.1200972.12153682697842916557.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692904155.2099075.14717645623034355995.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
5c88705e2a netfs: Adjust the netfs_failure tracepoint to indicate non-subreq lines
Adjust the netfs_failure tracepoint to indicate a subrequest number of -1
when it's a full-request failure unrelated to any particular subrequest,
such as a failure to encrypt its data buffer.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164623001948.3564931.2353852999649380059.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678204587.1200972.14893513018190383961.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692903233.2099075.15414355147237641274.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
6cd3d6fd1f netfs: Trace refcounting on the netfs_io_subrequest struct
Add refcount tracing for the netfs_io_subrequest structure.

Changes
=======
ver #3)
 - Switch 'W=' to 'R=' in the traceline to match other request debug IDs.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622998584.3564931.5052255990645723639.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678202603.1200972.14726007419792315578.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692901860.2099075.4845820886851239935.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
de74023bef netfs: Trace refcounting on the netfs_io_request struct
Add refcount tracing for the netfs_io_request structure.

Changes
=======
ver #3)
 - Switch 'W=' to 'R=' in the traceline to match other request debug IDs.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622997668.3564931.14456171619219324968.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678200943.1200972.7241495532327787765.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692900920.2099075.11847712419940675791.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
18b3ff9fe8 netfs: Adjust the netfs_rreq tracepoint slightly
Adjust the netfs_rreq tracepoint to include the origin of the request and
to increase the size of the "what trace" output strings by a character so
that "ENCRYPT" and "DECRYPT" will fit without abbreviation.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622996715.3564931.4252319907990358129.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678199468.1200972.17275585970238114726.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692898684.2099075.12153225958137716567.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
3a4a38e66d netfs: Split netfs_io_* object handling out
Split netfs_io_* object handling out into a file that's going to contain
object allocation, get and put routines.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622995118.3564931.6089530629052064470.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678197044.1200972.11511937252083343775.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692894693.2099075.7831091294248735173.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
f18a378580 netfs: Finish off rename of netfs_read_request to netfs_io_request
Adjust helper function names and comments after mass rename of
struct netfs_read_*request to struct netfs_io_*request.

Changes
=======
ver #2)
 - Make the changes in the docs also.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622992433.3564931.6684311087845150271.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678196111.1200972.5001114956865989528.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692892567.2099075.13895804222087028813.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
6a19114b8e netfs: Rename netfs_read_*request to netfs_io_*request
Rename netfs_read_*request to netfs_io_*request so that the same structures
can be used for the write helpers too.

perl -p -i -e 's/netfs_read_(request|subrequest)/netfs_io_$1/g' \
   `git grep -l 'netfs_read_\(sub\|\)request'`
perl -p -i -e 's/nr_rd_ops/nr_outstanding/g' \
   `git grep -l nr_rd_ops`
perl -p -i -e 's/nr_wr_ops/nr_copy_ops/g' \
   `git grep -l nr_wr_ops`
perl -p -i -e 's/netfs_read_source/netfs_io_source/g' \
   `git grep -l 'netfs_read_source'`
perl -p -i -e 's/netfs_io_request_ops/netfs_request_ops/g' \
   `git grep -l 'netfs_io_request_ops'`
perl -p -i -e 's/init_rreq/init_request/g' \
   `git grep -l 'init_rreq'`

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/164622988070.3564931.7089670190434315183.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678195157.1200972.366609966927368090.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692891535.2099075.18435198075367420588.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
David Howells
5ac417d24c netfs: Generate enums from trace symbol mapping lists
netfs has a number of lists of symbols for use in tracing, listed in an
enum and then listed again in a symbol->string mapping for use with
__print_symbolic().  This is, however, redundant.

Instead, use the symbol->string mapping list to also generate the enum
where the enum is in the same file.

Changes
=======
ver #3)
 - #undef EM and E_ at the end of the trace file[1].

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/c2f4b3dc107b106e04c48f54945a12715cccfdf3.camel@redhat.com/ [1]
Link: https://lore.kernel.org/r/164622980839.3564931.5673300162465266909.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678192454.1200972.4428834328108580460.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/CALF+zOkB38_MB5QwNUtqTU4WjMaLUJ5+Piwsn3pMxkO3d4J7Kg@mail.gmail.com/ # v2
Link: https://lore.kernel.org/r/164692890614.2099075.12960653141802151575.stgit@warthog.procyon.org.uk/ # v3
2022-03-18 09:24:00 +00:00
Jeffle Xu
e9b57aaae6 fscache: export fscache_end_operation()
Export fscache_end_operation() to avoid code duplication.

Besides, considering the paired fscache_begin_read_operation() is
already exported, it shall make sense to also export
fscache_end_operation().

Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com

Link: https://lore.kernel.org/r/20220302125134.131039-2-jefflexu@linux.alibaba.com/ # Jeffle's v4
Link: https://lore.kernel.org/r/164622971432.3564931.12184135678781328146.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678190346.1200972.7453733431978569479.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692888334.2099075.5166283293894267365.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/20220316131723.111553-2-jefflexu@linux.alibaba.com/ # v5
2022-03-18 09:23:34 +00:00
Greg Kroah-Hartman
7a19006b60 kernfs: remove unneeded #if 0 guard
Commit f2eb478f2f ("kernfs: move struct kernfs_root out of the public
view.") moved kernfs_root out of kernfs.h, but my debugging code of a
 #if 0 was left in accidentally.  Fix that up by removing the guards.

Fixes: f2eb478f2f ("kernfs: move struct kernfs_root out of the public view.")
Cc: Tejun Heo <tj@kernel.org>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20220318073452.1486568-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-18 09:47:04 +01:00
Krzysztof Kozlowski
8931ddd8d6 MIPS: ingenic: correct unit node address
Unit node addresses should not have leading 0x:

  Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x"

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2022-03-18 09:38:34 +01:00
Elijah Harding
a893b7fc7b ALSA: core: Fix typo in 'PCM Timer Interface' help
Signed-off-by: Elijah Harding <eharding830@gmail.com>
Link: https://lore.kernel.org/r/20220318015201.30871-1-eharding830@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-03-18 09:19:37 +01:00
Kai-Heng Feng
864cb14c0f ALSA: hda/realtek: Fix LED on Zbook Studio G9
Commit 07bcab9394 ("ALSA: hda/realtek: Add support for HP Laptops")
breaks mute and micmute LEDs because it changed the LED quirk from
ALC285_FIXUP_HP_GPIO_LED to ALC245_FIXUP_HP_GPIO_LED, so change it back
here.

Also reorder the chain of quirks to ensure LED quirk is the last one
being applied.

Fixes: 07bcab9394 ("ALSA: hda/realtek: Add support for HP Laptops")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220317221134.566358-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-03-18 09:18:59 +01:00
Helge Deller
9b046d0245 parisc: Avoid using hardware single-step in kprobes
This patch changes the kprobe and kretprobe feature to use another
break instruction instead of relying on the hardware single-step
feature.
That way those kprobes now work in qemu as well, because in qemu we
don't emulate yet single-stepping.

Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-18 09:10:14 +01:00
Chao Yu
c86868bbc2 f2fs: initialize sbi->gc_mode explicitly
It needs to initialized sbi->gc_mode to GC_NORMAL explicitly.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2022-03-17 23:48:03 -07:00
Ming Qian
47aa866f24 media: amphion: cleanup media device if register it fail
there is issue that driver forget to
call media_device_cleanup if media_device_register fail,
it will led to memory leak.
Also driver should check the return value of vpu_add_func.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:32:40 +01:00
Ming Qian
a9f7224c67 media: amphion: fix some issues to improve robust
fix some issues reported by Dan,
1. fix some signedness bug
2. don't use u32 as function return value
3. prevent a divide by zero bug
4. Just return zero on success, don't return a known parameter
5. check the validity of some variables
6. reset buffer state when return buffers
7. make sure the ALIGN won't wrap to zero

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:32:10 +01:00
Ming Qian
05a03eff34 media: amphion: fix some error related with undefined reference to __divdi3
1. use ns_to_timespec64 instead of division method
2. use timespec64_to_ns instead of custom macro
3. remove unused custom macro
4. don't modify minus timestamp
5. remove some unused debug timestamp information

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:31:05 +01:00
Ming Qian
f445014a22 media: amphion: fix an issue that using pm_runtime_get_sync incorrectly
pm_runtime_get_sync() also returns 1 on success.
The documentation for pm_runtime_get_sync() suggests using
pm_runtime_resume_and_get() instead

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:29:58 +01:00
Yihao Han
298cf3dfac media: vidtv: use vfree() for memory allocated with vzalloc()
It is allocated with vzalloc(), the corresponding release function
should not be kfree(), use vfree() instead.

Generated by: scripts/coccinelle/api/kfree_mismatch.cocci

Signed-off-by: Yihao Han <hanyihao@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:28:17 +01:00
Hans Verkuil
4df312b9ca media: m5mols/m5mols.h: document new reset field
The new reset field in struct m5mols_info was not documented,
add this.

This fixes a kerneldoc warning:

drivers/media/i2c/m5mols/m5mols.h:244: warning: Function parameter or member 'reset' not described in 'm5mols_info'

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: aaaf357fa6 (media: m5mols: Convert to use GPIO descriptors)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:27:56 +01:00
Hans Verkuil
f1b7d5ffc2 media: pixfmt-yuv-planar.rst: fix PIX_FMT labels
Two labels used _ instead of - so were never found and one new PIX_FMT was
missing the label altogether. This led to these warnings:

Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-pix-fmt-nv12m-8l128
Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-pix-fmt-nv12m-10be-8l128
Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-pix-fmt-mm21

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 72a74c8f0a ("media: add nv12m_8l128 and nv12m_10be_8l128 video format.")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 07:27:37 +01:00
Nicolas Dichtel
b58b1f563a xfrm: rework default policy structure
This is a follow up of commit f8d858e607 ("xfrm: make user policy API
complete"). The goal is to align userland API to the internal structures.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by:  Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2022-03-18 07:23:12 +01:00
Andrii Nakryiko
60911970b0 Merge branch 'Subskeleton support for BPF librariesThread-Topic: [PATCH bpf-next v4 0/5'
Delyan Kratunov says:

====================

In the quest for ever more modularity, a new need has arisen - the ability to
access data associated with a BPF library from a corresponding userspace library.
The catch is that we don't want the userspace library to know about the structure of the
final BPF object that the BPF library is linked into.

In pursuit of this modularity, this patch series introduces *subskeletons.*
Subskeletons are similar in use and design to skeletons with a couple of differences:

1. The generated storage types do not rely on contiguous storage for the library's
variables because they may be interspersed randomly throughout the final BPF object's sections.

2. Subskeletons do not own objects and instead require a loaded bpf_object* to
be passed at runtime in order to be initialized. By extension, symbols are resolved at
runtime by parsing the final object's BTF.

3. Subskeletons allow access to all global variables, programs, and custom maps. They also expose
the internal maps *of the final object*. This allows bpf_var_skeleton objects to contain a bpf_map**
instead of a section name.

Changes since v3:
 - Re-add key/value type lookup for legacy user maps (fixing btf test)
 - Minor cleanups (missed sanitize_identifier call, error messages, formatting)

Changes since v2:
 - Reuse SEC_NAME strict mode flag
 - Init bpf_map->btf_value_type_id on open for internal maps *and* user BTF maps
 - Test custom section names (.data.foo) and overlapping kconfig externs between the final object and the library
 - Minor review comments in gen.c & libbpf.c

Changes since v1:
 - Introduced new strict mode knob for single-routine-in-.text compatibility behavior, which
   disproportionately affects library objects. bpftool works in 1.0 mode so subskeleton generation
   doesn't have to worry about this now.
 - Made bpf_map_btf_value_type_id available earlier and used it wherever applicable.
 - Refactoring in bpftool gen.c per review comments.
 - Subskels now use typeof() for array and func proto globals to avoid the need for runtime split btf.
 - Expanded the subskeleton test to include arrays, custom maps, extern maps, weak symbols, and kconfigs.
 - selftests/bpf/Makefile now generates a subskel.h for every skel.h it would make.

For reference, here is a shortened subskeleton header:

#ifndef __TEST_SUBSKELETON_LIB_SUBSKEL_H__
#define __TEST_SUBSKELETON_LIB_SUBSKEL_H__

struct test_subskeleton_lib {
	struct bpf_object *obj;
	struct bpf_object_subskeleton *subskel;
	struct {
		struct bpf_map *map2;
		struct bpf_map *map1;
		struct bpf_map *data;
		struct bpf_map *rodata;
		struct bpf_map *bss;
		struct bpf_map *kconfig;
	} maps;
	struct {
		struct bpf_program *lib_perf_handler;
	} progs;
	struct test_subskeleton_lib__data {
		int *var6;
		int *var2;
		int *var5;
	} data;
	struct test_subskeleton_lib__rodata {
		int *var1;
	} rodata;
	struct test_subskeleton_lib__bss {
		struct {
			int var3_1;
			__s64 var3_2;
		} *var3;
		int *libout1;
		typeof(int[4]) *var4;
		typeof(int (*)()) *fn_ptr;
	} bss;
	struct test_subskeleton_lib__kconfig {
		_Bool *CONFIG_BPF_SYSCALL;
	} kconfig;

static inline struct test_subskeleton_lib *
test_subskeleton_lib__open(const struct bpf_object *src)
{
	struct test_subskeleton_lib *obj;
	struct bpf_object_subskeleton *s;
	int err;

	...
	s = (struct bpf_object_subskeleton *)calloc(1, sizeof(*s));
	...

	s->var_cnt = 9;
	...

	s->vars[0].name = "var6";
	s->vars[0].map = &obj->maps.data;
	s->vars[0].addr = (void**) &obj->data.var6;
  ...

	/* maps */
	...

	/* programs */
	s->prog_cnt = 1;
	...

	err = bpf_object__open_subskeleton(s);
  ...
	return obj;
}
#endif /* __TEST_SUBSKELETON_LIB_SUBSKEL_H__ */
====================

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2022-03-17 23:12:48 -07:00
Delyan Kratunov
3cccbaa033 selftests/bpf: Test subskeleton functionality
This patch changes the selftests/bpf Makefile to also generate
a subskel.h for every skel.h it would have normally generated.

Separately, it also introduces a new subskeleton test which tests
library objects, externs, weak symbols, kconfigs, and user maps.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1bd24956940bbbfe169bb34f7f87b11df52ef011.1647473511.git.delyank@fb.com
2022-03-17 23:12:48 -07:00
Delyan Kratunov
00389c58ff bpftool: Add support for subskeletons
Subskeletons are headers which require an already loaded program to
operate.

For example, when a BPF library is linked into a larger BPF object file,
the library userspace needs a way to access its own global variables
without requiring knowledge about the larger program at build time.

As a result, subskeletons require a loaded bpf_object to open().
Further, they find their own symbols in the larger program by
walking BTF type data at run time.

At this time, programs, maps, and globals are supported through
non-owning pointers.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/ca8a48b4841c72d285ecce82371bef4a899756cb.1647473511.git.delyank@fb.com
2022-03-17 23:12:39 -07:00
Delyan Kratunov
430025e5dc libbpf: Add subskeleton scaffolding
In symmetry with bpf_object__open_skeleton(),
bpf_object__open_subskeleton() performs the actual walking and linking
of maps, progs, and globals described by bpf_*_skeleton objects.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/6942a46fbe20e7ebf970affcca307ba616985b15.1647473511.git.delyank@fb.com
2022-03-17 23:11:16 -07:00
Delyan Kratunov
262cfb74ff libbpf: Init btf_{key,value}_type_id on internal map open
For internal and user maps, look up the key and value btf
types on open() and not load(), so that `bpf_map_btf_value_type_id`
is usable in `bpftool gen`.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/78dbe4e457b4a05e098fc6c8f50014b680c86e4e.1647473511.git.delyank@fb.com
2022-03-17 23:11:15 -07:00
Delyan Kratunov
bc380eb9d0 libbpf: .text routines are subprograms in strict mode
Currently, libbpf considers a single routine in .text to be a program. This
is particularly confusing when it comes to library objects - a single routine
meant to be used as an extern will instead be considered a bpf_program.

This patch hides this compatibility behavior behind the pre-existing
SEC_NAME strict mode flag.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/018de8d0d67c04bf436055270d35d394ba393505.1647473511.git.delyank@fb.com
2022-03-17 23:11:15 -07:00
Brandon Wyman
a5436af598 hwmon: (pmbus) Add Vin unit off handling
If there is an input undervoltage fault, reported in STATUS_INPUT
command response, there is quite likely a "Unit Off For Insufficient
Input Voltage" condition as well.

Add a constant for bit 3 of STATUS_INPUT. Update the Vin limit
attributes to include both bits in the mask for clearing faults.

If an input undervoltage fault occurs, causing a unit off for
insufficient input voltage, but the unit is off bit is not cleared, the
STATUS_WORD will not be updated to clear the input fault condition.
Including the unit is off bit (bit 3) allows for the input fault
condition to completely clear.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Link: https://lore.kernel.org/r/20220317232123.2103592-1-bjwyman@gmail.com
Fixes: b4ce237b7f ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers")
[groeck: Dropped unnecessary ()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-03-17 22:30:28 -07:00
Yang Li
71e6d0608e media: platform: Remove unnecessary print function dev_err()
The print function dev_err() is redundant because platform_get_irq()
already prints an error.

Eliminate the follow coccicheck warnings:
./drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c:119:2-9:
line 119 is redundant because platform_get_irq() already prints an error
./drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c:103:2-9:
line 103 is redundant because platform_get_irq() already prints an error

Link: https://lore.kernel.org/linux-media/20220316001411.80167-1-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 06:05:43 +01:00
Xiongfeng Wang
5d1ca13802 media: amphion: Add missing of_node_put() in vpu_core_parse_dt()
of_parse_phandle() will increment the refcount of the returned
device_node. Calling of_node_put() to avoid the refcount leak.

Link: https://lore.kernel.org/linux-media/20220316081938.80819-1-wangxiongfeng2@huawei.com
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 06:04:58 +01:00
Xiongfeng Wang
77119adb62 media: mtk-vcodec: Add missing of_node_put() in mtk_vdec_hw_prob_done()
of_find_compatible_node() will increment the refcount of the returned
device_node. Calling of_node_put() to avoid the refcount leak.

Link: https://lore.kernel.org/linux-media/20220316123452.186166-1-wangxiongfeng2@huawei.com
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 06:04:32 +01:00
YueHaibing
f4a4f9a54b media: platform: amphion: Fix build error without MAILBOX
while COMPILE_TEST is y and MAILBOX is n, build fails:

ERROR: modpost: "mbox_request_channel_byname" [drivers/media/platform/amphion/amphion-vpu.ko] undefined!
ERROR: modpost: "mbox_free_channel" [drivers/media/platform/amphion/amphion-vpu.ko] undefined!
ERROR: modpost: "mbox_send_message" [drivers/media/platform/amphion/amphion-vpu.ko] undefined!

Adding a MAILBOX dependency in VIDEO_AMPHION_VPU to fix this.

Link: https://lore.kernel.org/linux-media/20220318030305.39120-1-yuehaibing@huawei.com
Fixes: 52b3a219dd ("media: platform: amphion: move config to its own file")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 06:03:40 +01:00
Mauro Carvalho Chehab
75080cc331 media: spi: Kconfig: Place SPI drivers on a single menu
It makes no sense to have two menus for SPI drivers, each
one with a single driver. Merge them and keep the Kconfig
sorted.

Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 05:58:35 +01:00
Mauro Carvalho Chehab
d94304f2c3 media: i2c: Kconfig: move camera drivers to the top
The camera drivers are the ones that suffer additions/changes
on those days. Place them on the top of the I2C drivers.

Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18 05:58:35 +01:00