| 文件 | 最后提交记录 | 最后更新时间 |
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Documentation: ocxl.rst: change FPGA indirect article to an Change use of 'a fpga' to 'an fpga' Signed-off-by: Tom Rix <trix@redhat.com> Acked-by: Andrew Donnellan <ajd@linux.ibm.com> Link: https://lore.kernel.org/r/20210608212350.3029742-5-trix@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 5 年前 | |
docs/bpf: Add bpf() syscall command reference Generate the syscall command reference from the UAPI header file and include it in the main bpf docs page. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-15-joe@cilium.io | 5 年前 | |
crypto: qat - remove unused character device and IOCTLs [ Upstream commit d237230728c567297f2f98b425d63156ab2ed17f ] The QAT driver exposes a character device (qat_adf_ctl) with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public uAPI header and have no known in-tree or out-of-tree users. Device lifecycle is already managed via sysfs. The ioctl interface also increases the attack surface and is the subject of a number of bug reports. Remove the character device, the IOCTL definitions, and the related data structures (adf_dev_status_info, adf_user_cfg_key_val, adf_user_cfg_section, adf_user_cfg_ctl_data). Drop the now-unused adf_cfg_user.h header and strip adf_ctl_drv.c down to the minimal module_init/module_exit hooks for workqueue, AER, and crypto/compression algorithm registration. Clean up leftover dead code that was only reachable from the removed IOCTL paths: adf_cfg_del_all(), adf_devmgr_verify_id(), adf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(), adf_get_vf_real_id() and the unused ADF_CFG macros. Additionally, drop the entry associated to QAT IOCTLs in ioctl-number.rst. Cc: stable@vger.kernel.org Fixes: d8cba25d2c68 ("crypto: qat - Intel(R) QAT driver framework") Reported-by: Zhi Wang <wangzhi@stu.xidian.edu.cn> Reported-by: Bin Yu <byu@xidian.edu.cn> Reported-by: MingYu Wang <w15303746062@163.com> Closes: https://lore.kernel.org/all/61d6d499.ab89.19b9b7f3186.Coremail.wangzhi_xd@stu.xidian.edu.cn/ Link: https://lore.kernel.org/all/20260508034841.256794-1-w15303746062@163.com/ Link: https://lore.kernel.org/all/20260508023542.256299-1-w15303746062@163.com/ Link: https://lore.kernel.org/all/20260504025120.98242-1-w15303746062@163.com/ Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Ahsan Atta <ahsan.atta@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 6848a6e39cac44fdb7cb88f0f777df62172d1551) Signed-off-by: Wentao Guan <guanwentao@uniontech.com> | 1 个月前 | |
media: mc: Expand MUST_CONNECT flag to always require an enabled link [ Upstream commit b3decc5ce7d778224d266423b542326ad469cb5f ] The MEDIA_PAD_FL_MUST_CONNECT flag indicates that the pad requires an enabled link to stream, but only if it has any link at all. This makes little sense, as if a pad is part of a pipeline, there are very few use cases for an active link to be mandatory only if links exist at all. A review of in-tree drivers confirms they all need an enabled link for pads marked with the MEDIA_PAD_FL_MUST_CONNECT flag. Expand the scope of the flag by rejecting pads that have no links at all. This requires modifying the pipeline build code to add those pads to the pipeline. Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Sasha Levin <sashal@kernel.org> | 2 年前 | |
netlink: add variable-length / auto integers [ Upstream commit 374d345d9b5e13380c66d7042f9533a6ac6d1195 ] We currently push everyone to use padding to align 64b values in netlink. Un-padded nla_put_u64() doesn't even exist any more. The story behind this possibly start with this thread: https://lore.kernel.org/netdev/20121204.130914.1457976839967676240.davem@davemloft.net/ where DaveM was concerned about the alignment of a structure containing 64b stats. If user space tries to access such struct directly: struct some_stats *stats = nla_data(attr); printf("A: %llu", stats->a); lack of alignment may become problematic for some architectures. These days we most often put every single member in a separate attribute, meaning that the code above would use a helper like nla_get_u64(), which can deal with alignment internally. Even for arches which don't have good unaligned access - access aligned to 4B should be pretty efficient. Kernel and well known libraries deal with unaligned input already. Padded 64b is quite space-inefficient (64b + pad means at worst 16B per attr vs 32b which takes 8B). It is also more typing: if (nla_put_u64_pad(rsp, NETDEV_A_SOMETHING_SOMETHING, value, NETDEV_A_SOMETHING_PAD)) Create a new attribute type which will use 32 bits at netlink level if value is small enough (probably most of the time?), and (4B-aligned) 64 bits otherwise. Kernel API is just: if (nla_put_uint(rsp, NETDEV_A_SOMETHING_SOMETHING, value)) Calling this new type "just" sint / uint with no specific size will hopefully also make people more comfortable with using it. Currently telling people "don't use u8, you may need the bits, and netlink will round up to 4B, anyway" is the #1 comment we give to newcomers. In terms of netlink layout it looks like this: 0 4 8 12 16 32b: [nlattr][ u32 ] 64b: [ pad ][nlattr][ u64 ] uint(32) [nlattr][ u32 ] uint(64) [nlattr][ u64 ] Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net> Stable-dep-of: 030e1c456666 ("macsec: read MACSEC_SA_ATTR_PN with nla_get_uint") Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit 1cf0b558cbb7a79223868680e7c312d9269d6b75) | 10 个月前 | |
ELF: document some de-facto PT_* ABI quirks Turns out rules about PT_INTERP, PT_GNU_STACK and PT_GNU_PROPERTY program headers are slightly different. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Link: https://lore.kernel.org/r/88d3f1bb-f4e0-4c40-9304-3843513a1262@p183 Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 3 年前 | |
futex2: Documentation: Document sys_futex_waitv() uAPI Create userspace documentation for futex_waitv() syscall, detailing how the arguments are used. Signed-off-by: André Almeida <andrealmeid@collabora.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210923171111.300673-23-andrealmeid@collabora.com | 4 年前 | |
docs: ntsync: Add documentation for the ntsync uAPI. [ Upstream commit 6b695a75ff908fa03d4108d837dcaf590cb42492 ] Add an overall explanation of the driver architecture, and complete and precise specification for its intended behaviour. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-30-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [ Backport from v6.14 ] Signed-off-by: WangYuli <wangyuli@uniontech.com> | 1 年前 | |
docs: IOMMU user API IOMMU UAPI is newly introduced to support communications between guest virtual IOMMU and host IOMMU. There has been lots of discussions on how it should work with VFIO UAPI and userspace in general. This document is intended to clarify the UAPI design and usage. The mechanics of how future extensions should be achieved are also covered in this documentation. Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Cc: linux-api@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Link: https://lore.kernel.org/r/1601051567-54787-2-git-send-email-jacob.jun.pan@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de> | 5 年前 | |
Documentation: userspace-api: correct spelling Correct spelling problems for Documentation/userspace-api/ as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Sean Young <sean@mess.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-media@vger.kernel.org Link: https://lore.kernel.org/r/20230129231053.20863-10-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 3 年前 | |
landlock: Document Landlock's file truncation support Use the LANDLOCK_ACCESS_FS_TRUNCATE flag in the tutorial. Adapt the backwards compatibility example and discussion to remove the truncation flag where needed. Point out potential surprising behaviour related to truncate. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20221018182216.301684-12-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net> | 3 年前 | |
doc: ReSTify no_new_privs.txt This updates no_new_privs documentation to ReST markup and adds it to the user-space API documentation. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 9 年前 | |
docs: ntsync: Add documentation for the ntsync uAPI. [ Upstream commit 6b695a75ff908fa03d4108d837dcaf590cb42492 ] Add an overall explanation of the driver architecture, and complete and precise specification for its intended behaviour. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-30-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [ Backport from v6.14 ] Signed-off-by: WangYuli <wangyuli@uniontech.com> | 1 年前 | |
Documentation: userspace-api: correct spelling Correct spelling problems for Documentation/userspace-api/ as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Sean Young <sean@mess.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-media@vger.kernel.org Link: https://lore.kernel.org/r/20230129231053.20863-10-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 3 年前 | |
Documentation: Add L1D flushing Documentation Add documentation of l1d flushing, explain the need for the feature and how it can be used. Signed-off-by: Balbir Singh <sblbir@amazon.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210108121056.21940-6-sblbir@amazon.com | 4 年前 | |
Documentation: userspace-api: correct spelling Correct spelling problems for Documentation/userspace-api/ as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Sean Young <sean@mess.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-media@vger.kernel.org Link: https://lore.kernel.org/r/20230129231053.20863-10-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 3 年前 | |
doc-rst: fix inline emphasis in unshare.rst The asterisk of the pointer is interpreted as a start tag for inline emphasis. Asterisks which are not Sphinx markup need to be quoted in rst-files. This fixes the Sphinx warning: Documentation/userspace-api/unshare.rst:108: WARNING: Inline emphasis start-string without end-string. Signed-off-by: Markus Heiser <markus.heiser@darmarit.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net> | 9 年前 | |
VDUSE: fix documentation underline warning Fix a VDUSE documentation build warning: Documentation/userspace-api/vduse.rst:21: WARNING: Title underline too short. Fixes: 7bc7f61897b6 ("Documentation: Add documentation for VDUSE") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Xie Yongji <xieyongji@bytedance.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: virtualization@lists.linux-foundation.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Link: https://lore.kernel.org/r/20211006202904.30241-1-rdunlap@infradead.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Xie Yongji <xieyongji@bytedance.com> Acked-by: Jason Wang <jasowang@redhat.com> | 4 年前 |
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