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2024-09-20nfsd: Move error code mapping to per-version proc code.NeilBrown
There is code scattered around nfsd which chooses an error status based on the particular version of nfs being used. It is cleaner to have the version specific choices in version specific code. With this patch common code returns the most specific error code possible and the version specific code maps that if necessary. Both v2 (nfsproc.c) and v3 (nfs3proc.c) now have a "map_status()" function which is called to map the resp->status before each non-trivial nfsd_proc_* or nfsd3_proc_* function returns. NFS4ERR_SYMLINK and NFS4ERR_WRONG_TYPE introduce extra complications and are left for a later patch. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: move V4ROOT version check to nfsd_set_fh_dentry()NeilBrown
This further centralizes version number checks. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: further centralize protocol version checks.NeilBrown
With this patch the only places that test ->rq_vers against a specific version are nfsd_v4client() and nfsd_set_fh_dentry(). The latter sets some flags in the svc_fh, which now includes: fh_64bit_cookies fh_use_wgather Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: use nfsd_v4client() in nfsd_breaker_owns_lease()NeilBrown
nfsd_breaker_owns_lease() currently open-codes the same test that nfsd_v4client() performs. With this patch we use nfsd_v4client() instead. Also as i_am_nfsd() is only used in combination with kthread_data(), replace it with nfsd_current_rqst() which combines the two and returns a valid svc_rqst, or NULL. The test for NULL is moved into nfsd_v4client() for code clarity. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: Pass 'cred' instead of 'rqstp' to some functions.NeilBrown
nfsd_permission(), exp_rdonly(), nfsd_setuser(), and nfsexp_flags() only ever need the cred out of rqstp, so pass it explicitly instead of the whole rqstp. This makes the interfaces cleaner. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: Don't pass all of rqst into rqst_exp_find()NeilBrown
Rather than passing the whole rqst, pass the pieces that are actually needed. This makes the inputs to rqst_exp_find() more obvious. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: don't assume copy notify when preprocessing the stateidSagi Grimberg
Move the stateid handling to nfsd4_copy_notify. If nfs4_preprocess_stateid_op did not produce an output stateid, error out. Copy notify specifically does not permit the use of special stateids, so enforce that outside generic stateid pre-processing. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Olga Kornievskaia <aglo@umich.edu> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sunrpc: allow svc threads to fail initialisation cleanlyNeilBrown
If an svc thread needs to perform some initialisation that might fail, it has no good way to handle the failure. Before the thread can exit it must call svc_exit_thread(), but that requires the service mutex to be held. The thread cannot simply take the mutex as that could deadlock if there is a concurrent attempt to shut down all threads (which is unlikely, but not impossible). nfsd currently call svc_exit_thread() unprotected in the unlikely event that unshare_fs_struct() fails. We can clean this up by introducing svc_thread_init_status() by which an svc thread can report whether initialisation has succeeded. If it has, it continues normally into the action loop. If it has not, svc_thread_init_status() immediately aborts the thread. svc_start_kthread() waits for either of these to happen, and calls svc_exit_thread() (under the mutex) if the thread aborted. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sunrpc: merge svc_rqst_alloc() into svc_prepare_thread()NeilBrown
The only caller of svc_rqst_alloc() is svc_prepare_thread(). So merge the one into the other and simplify. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sunrpc: don't take ->sv_lock when updating ->sv_nrthreads.NeilBrown
As documented in svc_xprt.c, sv_nrthreads is protected by the service mutex, and it does not need ->sv_lock. (->sv_lock is needed only for sv_permsocks, sv_tempsocks, and sv_tmpcnt). So remove the unnecessary locking. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sunrpc: change sp_nrthreads from atomic_t to unsigned int.NeilBrown
sp_nrthreads is only ever accessed under the service mutex nlmsvc_mutex nfs_callback_mutex nfsd_mutex so these is no need for it to be an atomic_t. The fact that all code using it is single-threaded means that we can simplify svc_pool_victim and remove the temporary elevation of sp_nrthreads. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sunrpc: document locking rules for svc_exit_thread()NeilBrown
The locking required for svc_exit_thread() is not obvious, so document it in a kdoc comment. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20nfsd: don't allocate the versions array.NeilBrown
Instead of using kmalloc to allocate an array for storing active version info, just declare an array to the max size - it is only 5 or so. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3Jan Stancek
ENGINE API has been deprecated since OpenSSL version 3.0 [1]. Distros have started dropping support from headers and in future it will likely disappear also from library. It has been superseded by the PROVIDER API, so use it instead for OPENSSL MAJOR >= 3. [1] https://github.com/openssl/openssl/blob/master/README-ENGINES.md [jarkko: fixed up alignment issues reported by checkpatch.pl --strict] Signed-off-by: Jan Stancek <jstancek@redhat.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Tested-by: R Nageswara Sastry <rnsastry@linux.ibm.com> Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-09-20sign-file,extract-cert: avoid using deprecated ERR_get_error_line()Jan Stancek
ERR_get_error_line() is deprecated since OpenSSL 3.0. Use ERR_peek_error_line() instead, and combine display_openssl_errors() and drain_openssl_errors() to a single function where parameter decides if it should consume errors silently. Signed-off-by: Jan Stancek <jstancek@redhat.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Tested-by: R Nageswara Sastry <rnsastry@linux.ibm.com> Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-09-20sign-file,extract-cert: move common SSL helper functions to a headerJan Stancek
Couple error handling helpers are repeated in both tools, so move them to a common header. Signed-off-by: Jan Stancek <jstancek@redhat.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Tested-by: R Nageswara Sastry <rnsastry@linux.ibm.com> Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-09-20KEYS: prevent NULL pointer dereference in find_asymmetric_key()Roman Smirnov
In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway. Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool. Cc: stable@vger.kernel.org # v5.17+ Fixes: 7d30198ee24f ("keys: X.509 public key issuer lookup without AKID") Suggested-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Roman Smirnov <r.smirnov@omp.ru> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-09-20KEYS: Remove unused declarationsYue Haibing
These declarations are never implemented, remove it. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-09-20ntb: Force physically contiguous allocation of rx ring buffersDave Jiang
Physical addresses under IOVA on x86 platform are mapped contiguously as a side effect before the patch that removed CONFIG_DMA_REMAP. The NTB rx buffer ring is a single chunk DMA buffer that is allocated against the NTB PCI device. If the receive side is using a DMA device, then the buffers are remapped against the DMA device before being submitted via the dmaengine API. This scheme becomes a problem when the physical memory is discontiguous. When dma_map_page() is called on the kernel virtual address from the dma_alloc_coherent() call, the new IOVA mapping no longer points to all the physical memory allocated due to being discontiguous. Change dma_alloc_coherent() to dma_alloc_attrs() in order to force DMA_ATTR_FORCE_CONTIGUOUS attribute. This is the best fix for the circumstance. A potential future solution may be having the DMA mapping API providing a way to alias an existing IOVA mapping to a new device perhaps. This fix is not to fix the patch pointed to by the fixes tag, but to fix the issue arised in the ntb_transport driver on x86 platforms after the said patch is applied. Reported-by: Jerry Dai <jerry.dai@intel.com> Fixes: f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") Tested-by: Jerry Dai <jerry.dai@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20ntb: ntb_hw_switchtec: Fix use after free vulnerability in ↵Kaixin Wang
switchtec_ntb_remove due to race condition In the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev function, then &sndev->check_link_status_work is bound with check_link_status_work. switchtec_ntb_link_notification may be called to start the work. If we remove the module which will call switchtec_ntb_remove to make cleanup, it will free sndev through kfree(sndev), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | check_link_status_work switchtec_ntb_remove | kfree(sndev); | | if (sndev->link_force_down) | // use sndev Fix it by ensuring that the work is canceled before proceeding with the cleanup in switchtec_ntb_remove. Signed-off-by: Kaixin Wang <kxwang23@m.fudan.edu.cn> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20ntb: idt: Fix the cacography in ntb_hw_idt.czhang jiao
The word 'swtich' is wrong, so fix it. Signed-off-by: zhang jiao <zhangjiao2@cmss.chinamobile.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20NTB: epf: don't misuse kernel-doc markerRandy Dunlap
Use "/*" instead of "/**" for common C comments to prevent warnings from scripts/kernel-doc. ntb_hw_epf.c:15: warning: expecting prototype for Host side endpoint driver to implement Non(). Prototype was for NTB_EPF_COMMAND() instead Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jon Mason <jdmason@kudzu.us> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Allen Hubbe <allenbh@gmail.com> Cc: ntb@lists.linux.dev Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20NTB: ntb_transport: fix all kernel-doc warningsRandy Dunlap
Fix all kernel-doc warnings in ntb_transport.c. The function parameters for ntb_transport_create_queue() changed, so update them in the kernel-doc comments. Add a Returns: comment for ntb_transport_register_client_dev(). ntb_transport.c:382: warning: No description found for return value of 'ntb_transport_register_client_dev' ntb_transport.c:1984: warning: Excess function parameter 'rx_handler' description in 'ntb_transport_create_queue' ntb_transport.c:1984: warning: Excess function parameter 'tx_handler' description in 'ntb_transport_create_queue' ntb_transport.c:1984: warning: Excess function parameter 'event_handler' description in 'ntb_transport_create_queue' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jon Mason <jdmason@kudzu.us> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Allen Hubbe <allenbh@gmail.com> Cc: ntb@lists.linux.dev Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20ntb: Constify struct bus_typeChristophe JAILLET
'struct bus_type' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 69682 4593 152 74427 122bb drivers/ntb/ntb_transport.o 5847 448 32 6327 18b7 drivers/ntb/core.o After: ===== text data bss dec hex filename 69858 4433 152 74443 122cb drivers/ntb/ntb_transport.o 6007 288 32 6327 18b7 drivers/ntb/core.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20ntb_perf: Fix printk formatMax Hawking
The correct printk format is %pa or %pap, but not %pa[p]. Fixes: 99a06056124d ("NTB: ntb_perf: Fix address err in perf_copy_chunk") Signed-off-by: Max Hawking <maxahawking@sonnenkinder.org> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20ntb: intel: Fix the NULL vs IS_ERR() bug for debugfs_create_dir()Jinjie Ruan
The debugfs_create_dir() function returns error pointers. It never returns NULL. So use IS_ERR() to check it. Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers") Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2024-09-20crash: Fix riscv64 crash memory reserve dead loopJinjie Ruan
On RISCV64 Qemu machine with 512MB memory, cmdline "crashkernel=500M,high" will cause system stall as below: Zone ranges: DMA32 [mem 0x0000000080000000-0x000000009fffffff] Normal empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000080000000-0x000000008005ffff] node 0: [mem 0x0000000080060000-0x000000009fffffff] Initmem setup node 0 [mem 0x0000000080000000-0x000000009fffffff] (stall here) commit 5d99cadf1568 ("crash: fix x86_32 crash memory reserve dead loop bug") fix this on 32-bit architecture. However, the problem is not completely solved. If `CRASH_ADDR_LOW_MAX = CRASH_ADDR_HIGH_MAX` on 64-bit architecture, for example, when system memory is equal to CRASH_ADDR_LOW_MAX on RISCV64, the following infinite loop will also occur: -> reserve_crashkernel_generic() and high is true -> alloc at [CRASH_ADDR_LOW_MAX, CRASH_ADDR_HIGH_MAX] fail -> alloc at [0, CRASH_ADDR_LOW_MAX] fail and repeatedly (because CRASH_ADDR_LOW_MAX = CRASH_ADDR_HIGH_MAX). As Catalin suggested, do not remove the ",high" reservation fallback to ",low" logic which will change arm64's kdump behavior, but fix it by skipping the above situation similar to commit d2f32f23190b ("crash: fix x86_32 crash memory reserve dead loop"). After this patch, it print: cannot allocate crashkernel (size:0x1f400000) Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Baoquan He <bhe@redhat.com> Link: https://lore.kernel.org/r/20240812062017.2674441-1-ruanjinjie@huawei.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20perf/riscv-sbi: Add platform specific firmware event handlingMayuresh Chitale
The SBI v2.0 specification pointed to by the link below reserves the event code 0xffff for platform specific firmware events. Update the driver to be able to parse and program such events. The platform specific firmware events must now be specified in the perf command as below: perf stat -e rCxxx ... where bits[63:62] = 0x3 of the event config indicate a platform specific firmware event and xxx indicate the actual event code which is passed as the event data. Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com> Link: https://github.com/riscv-non-isa/riscv-sbi-doc/releases/download/v2.0/riscv-sbi.pdf Link: https://lore.kernel.org/r/20240812051109.6496-1-mchitale@ventanamicro.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20Merge patch series "tools: Add barrier implementations for riscv"Palmer Dabbelt
Charlie Jenkins <charlie@rivosinc.com> says: Add support for riscv specific barrier implementations to the tools tree, so that fence instructions can be emitted for synchronization. * b4-shazam-merge: tools: Optimize ring buffer for riscv tools: Add riscv barrier implementation Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-0-ca7e193ae198@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20MAINTAINERS: update email for Joel GranadosJoel Granados
Change my contact email in MAINTAINERS and .mailmap to my kernel.org. This in order to avoid cumbersome corporate email policies. Signed-off-by: Joel Granados <j.granados@samsung.com>
2024-09-20io_uring: check if we need to reschedule during overflow flushJens Axboe
In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while. Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop. Link: https://lore.kernel.org/io-uring/66ed061d.050a0220.29194.0053.GAE@google.com/ Reported-by: syzbot+5fca234bd7eb378ff78e@syzkaller.appspotmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-20tools: Optimize ring buffer for riscvCharlie Jenkins
Now that the riscv tools tree supports optimized barriers, use them in the ring buffer. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: Andrea Parri <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-2-ca7e193ae198@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20tools: Add riscv barrier implementationCharlie Jenkins
Many of the other architectures use their custom barrier implementations. Use the barrier code from the kernel sources to optimize barriers in tools. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: Andrea Parri <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-1-ca7e193ae198@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20RISC-V: Don't have MAX_PHYSMEM_BITS exceed phys_addr_tPalmer Dabbelt
I recently ended up with a warning on some compilers along the lines of CC kernel/resource.o In file included from include/linux/ioport.h:16, from kernel/resource.c:15: kernel/resource.c: In function 'gfr_start': include/linux/minmax.h:49:37: error: conversion from 'long long unsigned int' to 'resource_size_t' {aka 'unsigned int'} changes value from '17179869183' to '4294967295' [-Werror=overflow] 49 | ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); }) | ^ include/linux/minmax.h:52:9: note: in expansion of macro '__cmp_once_unique' 52 | __cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) | ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:161:27: note: in expansion of macro '__cmp_once' 161 | #define min_t(type, x, y) __cmp_once(min, type, x, y) | ^~~~~~~~~~ kernel/resource.c:1829:23: note: in expansion of macro 'min_t' 1829 | end = min_t(resource_size_t, base->end, | ^~~~~ kernel/resource.c: In function 'gfr_continue': include/linux/minmax.h:49:37: error: conversion from 'long long unsigned int' to 'resource_size_t' {aka 'unsigned int'} changes value from '17179869183' to '4294967295' [-Werror=overflow] 49 | ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); }) | ^ include/linux/minmax.h:52:9: note: in expansion of macro '__cmp_once_unique' 52 | __cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) | ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:161:27: note: in expansion of macro '__cmp_once' 161 | #define min_t(type, x, y) __cmp_once(min, type, x, y) | ^~~~~~~~~~ kernel/resource.c:1847:24: note: in expansion of macro 'min_t' 1847 | addr <= min_t(resource_size_t, base->end, | ^~~~~ cc1: all warnings being treated as errors which looks like a real problem: our phys_addr_t is only 32 bits now, so having 34-bit masks is just going to result in overflows. Reviewed-by: Charlie Jenkins <charlie@rivosinc.com> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20240731162159.9235-2-palmer@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODEHaibo Xu
Currently, only acpi_early_node_map[0] was initialized to NUMA_NO_NODE. To ensure all the values were properly initialized, switch to initialize all of them to NUMA_NO_NODE. Suggested-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Haibo Xu <haibo1.xu@intel.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> (arm64 platform) Reviewed-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240729035958.1957185-1-haibo1.xu@intel.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20io_uring: improve request linking traceJens Axboe
Right now any link trace is listed as being linked after the head request in the chain, but it's more useful to note explicitly which request a given new request is chained to. Change the link trace to dump the tail request so that chains are immediately apparent when looking at traces. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-20Merge tag 'sched-rt-2024-09-17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RT enablement from Thomas Gleixner: "Enable PREEMPT_RT on supported architectures: After twenty years of development we finally reached the point to enable PREEMPT_RT support in the mainline kernel. All prerequisites are merged, so enable it on the supported architectures ARM64, RISCV and X86(32/64-bit)" * tag 'sched-rt-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: riscv: Allow to enable PREEMPT_RT. arm64: Allow to enable PREEMPT_RT. x86: Allow to enable PREEMPT_RT.
2024-09-19selinux,smack: properly reference the LSM blob in security_watch_key()Paul Moore
Unfortunately when we migrated the lifecycle management of the key LSM blob to the LSM framework we forgot to convert the security_watch_key() callbacks for SELinux and Smack. This patch corrects this by making use of the selinux_key() and smack_key() helper functions respectively. This patch also removes some input checking in the Smack callback as it is no longer needed. Fixes: 5f8d28f6d7d5 ("lsm: infrastructure management of the key security blob") Reported-by: syzbot+044fdf24e96093584232@syzkaller.appspotmail.com Tested-by: syzbot+044fdf24e96093584232@syzkaller.appspotmail.com Reviewed-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
2024-09-19Merge branch 'pci/tools'Bjorn Helgaas
- Remove .*.cmd files with make clean (zhang jiao) - Remove the unused BILLION macro (zhang jiao) * pci/tools: tools: PCI: Remove unused BILLION macro tools: PCI: Remove .*.cmd files with make clean
2024-09-19Merge branch 'pci/misc'Bjorn Helgaas
- Check pcie_find_root_port() return in x86 fixups to avoid NULL pointer dereferences (Samasth Norway Ananda) - Make pci_bus_type constant (Kunwu Chan) - Remove unused declarations of __pci_pme_wakeup() and pci_vpd_release() (Yue Haibing) - Remove any leftover .*.cmd files with make clean (zhang jiao) * pci/misc: PCI: Fix typos PCI/VPD: Remove pci_vpd_release() unused declarations PCI/PM: Remove __pci_pme_wakeup() unused declarations PCI: Make pci_bus_type constant x86/PCI: Check pcie_find_root_port() return for NULL
2024-09-19Merge branch 'pci/quirks'Bjorn Helgaas
- Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS but does provide ACS-like features (Subramanian Ananthanarayanan) - Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson) * pci/quirks: PCI: Mark Creative Labs EMU20k2 INTx masking as broken PCI: Add ACS quirk for Qualcomm SA8775P
2024-09-19Merge branch 'pci/controller/xilinx'Bjorn Helgaas
- Fix off-by-one error in INTx IRQ handler that caused INTx interrupts to be lost or delivered as the wrong interrupt (Sean Anderson) - Rate-limit misc interrupt messages (Sean Anderson) - Turn off the clock on probe failure and device removal (Sean Anderson) - Add DT binding and driver support for enabling/disabling PHYs (Sean Anderson) - Add PCIe phy bindings for the ZCU102 (Sean Anderson) - Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT binding and xilinx-dma-pl driver (Thippeswamy Havalige) * pci/controller/xilinx: PCI: xilinx-xdma: Add Xilinx QDMA Root Port driver dt-bindings: PCI: xilinx-xdma: Add schemas for Xilinx QDMA PCIe Root Port Bridge arm64: zynqmp: Add PCIe phys property for ZCU102 PCI: xilinx-nwl: Add PHY support dt-bindings: pci: xilinx-nwl: Add phys property PCI: xilinx-nwl: Clean up clock on probe failure/removal PCI: xilinx-nwl: Rate-limit misc interrupt messages PCI: xilinx-nwl: Fix register misspelling PCI: xilinx-nwl: Fix off-by-one in INTx IRQ handler
2024-09-19Merge branch 'pci/controller/vmd'Bjorn Helgaas
- Fix whitespace indentation issues (Riyan Dhiman) * pci/controller/vmd: PCI: vmd: Fix indentation issue in vmd_shutdown()
2024-09-19Merge branch 'pci/controller/rcar-gen4'Bjorn Helgaas
- Make the read-only const array 'check_addr' static (Colin Ian King) - Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding (Yoshihiro Shimoda) * pci/controller/rcar-gen4: dt-bindings: PCI: rcar-gen4-pci-ep: Add R-Car V4M compatible dt-bindings: PCI: rcar-gen4-pci-host: Add R-Car V4M compatible PCI: rcar-gen4: Make read-only const array check_addr static
2024-09-19Merge branch 'pci/controller/qcom'Bjorn Helgaas
- Drop endpoint redundant masking of global IRQ events (Manivannan Sadhasivam) - Clarify unknown global IRQ message and only log it once to avoid a flood (Manivannan Sadhasivam) - Add Manivannan Sadhasivam as maintainer of qcom endpoint driver (Manivannan Sadhasivam) - Add 'linux,pci-domain' property to endpoint DT binding (Manivannan Sadhasivam) - Assign PCI domain number for endpoint controllers (Manivannan Sadhasivam) - Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for endpoint controller (Manivannan Sadhasivam) - Add global SPI interrupt for PCIe link events to DT binding (Manivannan Sadhasivam) - Add global RC interrupt handler to handle 'Link up' events and automatically enumerate hot-added devices (Manivannan Sadhasivam) - Avoid mirroring of DBI and iATU register space so it doesn't overlap BAR MMIO space (Prudhvi Yarlagadda) - Enable controller resources like PHY only after PERST# is deasserted to partially avoid the problem that the endpoint SoC crashes when accessing things when Refclk is absent (Manivannan Sadhasivam) - Rename dw_pcie.link_gen to max_link_speed to avoid ambiguity (Manivannan Sadhasivam) - Cache maximum link speed value in dw_pcie.max_link_speed for use by vendor drivers (Manivannan Sadhasivam) - Add 16.0 GT/s equalization and RX lane margining settings (Shashank Babu Chinta Venkata) - Pass domain number to pci_bus_release_domain_nr() explicitly to avoid a NULL pointer dereference (Manivannan Sadhasivam) * pci/controller/qcom: PCI: Pass domain number to pci_bus_release_domain_nr() explicitly PCI: qcom: Add RX lane margining settings for 16.0 GT/s PCI: qcom: Add equalization settings for 16.0 GT/s PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed' PCI: qcom-ep: Enable controller resources like PHY only after refclk is available PCI: qcom: Disable mirroring of DBI and iATU register space in BAR region PCI: qcom: Enumerate endpoints based on Link up event in 'global_irq' interrupt dt-bindings: PCI: qcom,pcie-sm8450: Add 'global' interrupt PCI: qcom-ep: Modify 'global_irq' and 'perst_irq' IRQ device names PCI: endpoint: Assign PCI domain number for endpoint controllers dt-bindings: PCI: pci-ep: Document 'linux,pci-domain' property dt-bindings: PCI: pci-ep: Update Maintainers PCI: qcom-ep: Reword the error message for receiving unknown global IRQ event PCI: qcom-ep: Drop the redundant masking of global IRQ events
2024-09-19Merge branch 'pci/controller/mediatek-gen3'Bjorn Helgaas
- Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC types (Lorenzo Bianconi) - Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi) - Add DT and driver support for Airoha EN7581 PCIe controller (Lorenzo Bianconi) * pci/controller/mediatek-gen3: PCI: mediatek-gen3: Add Airoha EN7581 support PCI: mediatek-gen3: Rely on reset_bulk APIs for PHY reset lines PCI: mediatek-gen3: Add mtk_gen3_pcie_pdata data structure dt-bindings: PCI: mediatek-gen3: Add support for Airoha EN7581
2024-09-19Merge branch 'pci/controller/mediatek'Bjorn Helgaas
- Drop excess mtk_pcie.mem kerneldoc description (Bjorn Helgaas) * pci/controller/mediatek: PCI: mediatek: Drop excess mtk_pcie.mem kerneldoc description
2024-09-19Merge branch 'pci/controller/loongson'Bjorn Helgaas
- Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets (Huacai Chen) * pci/controller/loongson: PCI/ACPI: Increase Loongson max PCI hosts to 8
2024-09-19Merge branch 'pci/controller/kirin'Bjorn Helgaas
- Fix potential buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina) * pci/controller/kirin: PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port()
2024-09-19Merge branch 'pci/controller/keystone'Bjorn Helgaas
- Fix NULL pointer checking when applying MRRS limitation quirk for AM65x SR 1.0 Errata #i2037 (Dan Carpenter) * pci/controller/keystone: PCI: keystone: Fix if-statement expression in ks_pcie_quirk()
generated by cgit (git 2.34.1) at 2025-09-11 19:05:36 +0000