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2022-03-18platform/x86: think-lmi: Certificate authentication supportMark Pearson
Implementation of certificate authentication feature for Lenovo platforms. This allows for signed updates of BIOS settings. Functionality supported: - Cert support available check. At initialisation check if BIOS supports certification authentication and if a certificate is installed. Enable the sysfs nodes appropriately - certificate and signature authentication attributes to enable a user to install, update and delete a certificate using signed signatures - certificate_thumbprint to confirm installed certificate details - support to go from certificate to password based authentication - signature and save_signature attributes needed for setting BIOS attributes using certificate authentication. Tested on X1 Carbon G10 and X1 Yoga G7. This feature is not generally available yet but will be released later this year. Note, I also cleaned up the formating of the GUIDs when I was adding the new defines. Hope that's OK to combine in this commit. Signed-off-by: Mark Pearson <markpearson@lenovo.com> Link: https://lore.kernel.org/r/20220317214008.3459-2-markpearson@lenovo.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-03-18rfkill: make new event layout opt-inJohannes Berg
Again new complaints surfaced that we had broken the ABI here, although previously all the userspace tools had agreed that it was their mistake and fixed it. Yet now there are cases (e.g. RHEL) that want to run old userspace with newer kernels, and thus are broken. Since this is a bit of a whack-a-mole thing, change the whole extensibility scheme of rfkill to no longer just rely on the message lengths, but instead require userspace to opt in via a new ioctl to a given maximum event size that it is willing to understand. By default, set that to RFKILL_EVENT_SIZE_V1 (8), so that the behaviour for userspace not calling the ioctl will look as if it's just running on an older kernel. Fixes: 14486c82612a ("rfkill: add a reason to the HW rfkill state") Cc: stable@vger.kernel.org # 5.11+ Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220316212749.16491491b270.Ifcb1950998330a596f29a2a162e00b7546a1d6d0@changeid
2022-03-18Documentation: syfs-class-firmware-attributes: Lenovo Certificate supportMark Pearson
Certificate based authentication is available as an alternative to password based authentication. The WMI commands are cryptographically signed using a separate signing server and will be verified by the BIOS before being accepted. This commit details the fields that are needed to support that implementation. At present the changes are intended for Lenovo platforms, but have been designed to keep them as flexible as possible for future implementations from other vendors. Signed-off-by: Mark Pearson <markpearson@lenovo.com> Link: https://lore.kernel.org/r/20220317214008.3459-1-markpearson@lenovo.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-03-18platform/x86: amd-pmc: Only report STB errors when STB enabledMario Limonciello
Currently if STB is disabled but an earlier function reported an error an incorrect error will be emitted about failing to write to STB. Correct this logic error by only showing errors when STB is enabled. Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20220317190301.6818-1-mario.limonciello@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-03-18i2c: designware: Remove code duplicationJan Dabros
Simplify code by moving common part to one function. Signed-off-by: Jan Dabros <jsd@semihalf.com> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-03-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nfDavid S. Miller
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>
2022-03-18Merge tag 'mlx5-updates-2022-03-17' of ↵David S. Miller
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>
2022-03-18afs: Maintain netfs_i_context::remote_i_sizeDavid Howells
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
2022-03-18netfs: Keep track of the actual remote file sizeDavid Howells
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
2022-03-18netfs: Split some core bits out into their own fileDavid Howells
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
2022-03-18netfs: Split fs/netfs/read_helper.cDavid Howells
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
2022-03-18netfs: Rename read_helper.c to io.cDavid Howells
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
2022-03-18netfs: Prepare to split read_helper.cDavid Howells
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
2022-03-18netfs: Add a function to consolidate beginning a readDavid Howells
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
2022-03-18netfs: Add a netfs inode contextDavid Howells
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
2022-03-18ceph: Make ceph_init_request() check caps on readaheadDavid Howells
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
2022-03-18netfs: Change ->init_request() to return an error codeDavid Howells
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
2022-03-18netfs: Refactor arguments for netfs_alloc_read_requestDavid Howells
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
2022-03-18netfs: Adjust the netfs_failure tracepoint to indicate non-subreq linesDavid Howells
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
2022-03-18netfs: Trace refcounting on the netfs_io_subrequest structDavid Howells
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
2022-03-18netfs: Trace refcounting on the netfs_io_request structDavid Howells
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
2022-03-18netfs: Adjust the netfs_rreq tracepoint slightlyDavid Howells
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
2022-03-18netfs: Split netfs_io_* object handling outDavid Howells
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
2022-03-18netfs: Finish off rename of netfs_read_request to netfs_io_requestDavid Howells
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
2022-03-18netfs: Rename netfs_read_*request to netfs_io_*requestDavid Howells
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
2022-03-18netfs: Generate enums from trace symbol mapping listsDavid Howells
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
2022-03-18fscache: export fscache_end_operation()Jeffle Xu
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
2022-03-18kernfs: remove unneeded #if 0 guardGreg Kroah-Hartman
Commit f2eb478f2f32 ("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: f2eb478f2f32 ("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>
2022-03-18MIPS: ingenic: correct unit node addressKrzysztof Kozlowski
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>
2022-03-18ALSA: core: Fix typo in 'PCM Timer Interface' helpElijah Harding
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>
2022-03-18ALSA: hda/realtek: Fix LED on Zbook Studio G9Kai-Heng Feng
Commit 07bcab93946c ("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: 07bcab93946c ("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>
2022-03-18parisc: Avoid using hardware single-step in kprobesHelge Deller
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>
2022-03-17f2fs: initialize sbi->gc_mode explicitlyChao Yu
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>
2022-03-18media: amphion: cleanup media device if register it failMing Qian
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>
2022-03-18media: amphion: fix some issues to improve robustMing Qian
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>
2022-03-18media: amphion: fix some error related with undefined reference to __divdi3Ming Qian
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>
2022-03-18media: amphion: fix an issue that using pm_runtime_get_sync incorrectlyMing Qian
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>
2022-03-18media: vidtv: use vfree() for memory allocated with vzalloc()Yihao Han
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>
2022-03-18media: m5mols/m5mols.h: document new reset fieldHans Verkuil
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: aaaf357fa61c (media: m5mols: Convert to use GPIO descriptors) Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-03-18media: pixfmt-yuv-planar.rst: fix PIX_FMT labelsHans Verkuil
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: 72a74c8f0a0d ("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>
2022-03-18xfrm: rework default policy structureNicolas Dichtel
This is a follow up of commit f8d858e607b2 ("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>
2022-03-17Merge branch 'Subskeleton support for BPF librariesThread-Topic: [PATCH ↵Andrii Nakryiko
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>
2022-03-17selftests/bpf: Test subskeleton functionalityDelyan Kratunov
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
2022-03-17bpftool: Add support for subskeletonsDelyan Kratunov
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
2022-03-17libbpf: Add subskeleton scaffoldingDelyan Kratunov
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
2022-03-17libbpf: Init btf_{key,value}_type_id on internal map openDelyan Kratunov
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
2022-03-17libbpf: .text routines are subprograms in strict modeDelyan Kratunov
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
2022-03-17hwmon: (pmbus) Add Vin unit off handlingBrandon Wyman
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: b4ce237b7f7d3 ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers") [groeck: Dropped unnecessary ()] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-03-18media: platform: Remove unnecessary print function dev_err()Yang Li
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>
2022-03-18media: amphion: Add missing of_node_put() in vpu_core_parse_dt()Xiongfeng Wang
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>
generated by cgit (git 2.34.1) at 2025-09-22 16:31:28 +0000