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Linus Torvalds 2a8120d7b4 more s390 updates for 6.10 merge window
- Switch read and write software bits for PUDs
 
 - Add missing hardware bits for PUDs and PMDs
 
 - Generate unwind information for C modules to fix GDB unwind
   error for vDSO functions
 
 - Create .build-id links for unstripped vDSO files to enable
   vDSO debugging with symbols
 
 - Use standard stack frame layout for vDSO generated stack frames
   to manually walk stack frames without DWARF information
 
 - Rework perf_callchain_user() and arch_stack_walk_user() functions
   to reduce code duplication
 
 - Skip first stack frame when walking user stack
 
 - Add basic checks to identify invalid instruction pointers when
   walking stack frames
 
 - Introduce and use struct stack_frame_vdso_wrapper within vDSO user
   wrapper code to automatically generate an asm-offset define. Also
   use STACK_FRAME_USER_OVERHEAD instead of STACK_FRAME_OVERHEAD to
   document that the code works with user space stack
 
 - Clear the backchain of the extra stack frame added by the vDSO user
   wrapper code. This allows the user stack walker to detect and skip
   the non-standard stack frame. Without this an incorrect instruction
   pointer would be added to stack traces.
 
 - Rewrite psw_idle() function in C to ease maintenance and further
   enhancements
 
 - Remove get_vtimer() function and use get_cpu_timer() instead
 
 - Mark psw variable in __load_psw_mask() as __unitialized to avoid
   superfluous clearing of PSW
 
 - Remove obsolete and superfluous comment about removed TIF_FPU flag
 
 - Replace memzero_explicit() and kfree() with kfree_sensitive() to
   fix warnings reported by Coccinelle
 
 - Wipe sensitive data and all copies of protected- or secure-keys
   from stack when an IOCTL fails
 
 - Both do_airq_interrupt() and do_io_interrupt() functions set
   CIF_NOHZ_DELAY flag. Move it in do_io_irq() to simplify the code
 
 - Provide iucv_alloc_device() and iucv_release_device() helpers,
   which can be used to deduplicate more or less identical IUCV
   device allocation and release code in four different drivers
 
 - Make use of iucv_alloc_device() and iucv_release_device()
   helpers to get rid of quite some code and also remove a
   cast to an incompatible function (clang W=1)
 
 - There is no user of iucv_root outside of the core IUCV code left.
   Therefore remove the EXPORT_SYMBOL
 
 - __apply_alternatives() contains a runtime check which verifies
   that the size of the to be patched code area is even. Convert
   this to a compile time check
 
 - Increase size of buffers for sending z/VM CP DIAGNOSE X'008'
   commands from 128 to 240
 
 - Do not accept z/VM CP DIAGNOSE X'008' commands longer than
   maximally allowed
 
 - Use correct defines IPL_BP_NVME_LEN and IPL_BP0_NVME_LEN instead
   of IPL_BP_FCP_LEN and IPL_BP0_FCP_LEN ones to initialize NVMe
   reIPL block on 'scp_data' sysfs attribute update
 
 - Initialize the correct fields of the NVMe dump block, which
   were confused with FCP fields
 
 - Refactor macros for 'scp_data' (re-)IPL sysfs attribute to
   reduce code duplication
 
 - Introduce 'scp_data' sysfs attribute for dump IPL to allow tools
   such as dumpconf passing additional kernel command line parameters
   to a stand-alone dumper
 
 - Rework the CPACF query functions to use the correct RRE or RRF
   instruction formats and set instruction register fields correctly
 
 - Instead of calling BUG() at runtime force a link error during
   compile when a unsupported opcode is used with __cpacf_query()
   or __cpacf_check_opcode() functions
 
 - Fix a crash in ap_parse_bitmap_str() function on /sys/bus/ap/apmask
   or /sys/bus/ap/aqmask sysfs file update with a relative mask value
 
 - Fix "bindings complete" udev event which should be sent once all AP
   devices have been bound to device drivers and again when unbind/bind
   actions take place and all AP devices are bound again
 
 - Facility list alt_stfle_fac_list is nowhere used in the decompressor,
   therefore remove it there
 
 - Remove custom kprobes insn slot allocator in favour of the standard
   module_alloc() one, since kernel image and module areas are located
   within 4GB
 
 - Use kvcalloc() instead of kvmalloc_array() in zcrypt driver to avoid
   calling memset() with a large byte count and get rid of the sparse
   warning as result
 -----BEGIN PGP SIGNATURE-----
 
 iI0EABYIADUWIQQrtrZiYVkVzKQcYivNdxKlNrRb8AUCZkyx2BccYWdvcmRlZXZA
 bGludXguaWJtLmNvbQAKCRDNdxKlNrRb8PYZAP9KxEfTyUmIh61Gx8+m3BW5dy7p
 E2Q8yotlUpGj49ul+AD8CEAyTiWR95AlMOVZZLV/0J7XIjhALvpKAGfiJWkvXgc=
 =pife
 -----END PGP SIGNATURE-----

Merge tag 's390-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Alexander Gordeev:

 - Switch read and write software bits for PUDs

 - Add missing hardware bits for PUDs and PMDs

 - Generate unwind information for C modules to fix GDB unwind error for
   vDSO functions

 - Create .build-id links for unstripped vDSO files to enable vDSO
   debugging with symbols

 - Use standard stack frame layout for vDSO generated stack frames to
   manually walk stack frames without DWARF information

 - Rework perf_callchain_user() and arch_stack_walk_user() functions to
   reduce code duplication

 - Skip first stack frame when walking user stack

 - Add basic checks to identify invalid instruction pointers when
   walking stack frames

 - Introduce and use struct stack_frame_vdso_wrapper within vDSO user
   wrapper code to automatically generate an asm-offset define. Also use
   STACK_FRAME_USER_OVERHEAD instead of STACK_FRAME_OVERHEAD to document
   that the code works with user space stack

 - Clear the backchain of the extra stack frame added by the vDSO user
   wrapper code. This allows the user stack walker to detect and skip
   the non-standard stack frame. Without this an incorrect instruction
   pointer would be added to stack traces.

 - Rewrite psw_idle() function in C to ease maintenance and further
   enhancements

 - Remove get_vtimer() function and use get_cpu_timer() instead

 - Mark psw variable in __load_psw_mask() as __unitialized to avoid
   superfluous clearing of PSW

 - Remove obsolete and superfluous comment about removed TIF_FPU flag

 - Replace memzero_explicit() and kfree() with kfree_sensitive() to fix
   warnings reported by Coccinelle

 - Wipe sensitive data and all copies of protected- or secure-keys from
   stack when an IOCTL fails

 - Both do_airq_interrupt() and do_io_interrupt() functions set
   CIF_NOHZ_DELAY flag. Move it in do_io_irq() to simplify the code

 - Provide iucv_alloc_device() and iucv_release_device() helpers, which
   can be used to deduplicate more or less identical IUCV device
   allocation and release code in four different drivers

 - Make use of iucv_alloc_device() and iucv_release_device() helpers to
   get rid of quite some code and also remove a cast to an incompatible
   function (clang W=1)

 - There is no user of iucv_root outside of the core IUCV code left.
   Therefore remove the EXPORT_SYMBOL

 - __apply_alternatives() contains a runtime check which verifies that
   the size of the to be patched code area is even. Convert this to a
   compile time check

 - Increase size of buffers for sending z/VM CP DIAGNOSE X'008' commands
   from 128 to 240

 - Do not accept z/VM CP DIAGNOSE X'008' commands longer than maximally
   allowed

 - Use correct defines IPL_BP_NVME_LEN and IPL_BP0_NVME_LEN instead of
   IPL_BP_FCP_LEN and IPL_BP0_FCP_LEN ones to initialize NVMe reIPL
   block on 'scp_data' sysfs attribute update

 - Initialize the correct fields of the NVMe dump block, which were
   confused with FCP fields

 - Refactor macros for 'scp_data' (re-)IPL sysfs attribute to reduce
   code duplication

 - Introduce 'scp_data' sysfs attribute for dump IPL to allow tools such
   as dumpconf passing additional kernel command line parameters to a
   stand-alone dumper

 - Rework the CPACF query functions to use the correct RRE or RRF
   instruction formats and set instruction register fields correctly

 - Instead of calling BUG() at runtime force a link error during compile
   when a unsupported opcode is used with __cpacf_query() or
   __cpacf_check_opcode() functions

 - Fix a crash in ap_parse_bitmap_str() function on /sys/bus/ap/apmask
   or /sys/bus/ap/aqmask sysfs file update with a relative mask value

 - Fix "bindings complete" udev event which should be sent once all AP
   devices have been bound to device drivers and again when unbind/bind
   actions take place and all AP devices are bound again

 - Facility list alt_stfle_fac_list is nowhere used in the decompressor,
   therefore remove it there

 - Remove custom kprobes insn slot allocator in favour of the standard
   module_alloc() one, since kernel image and module areas are located
   within 4GB

 - Use kvcalloc() instead of kvmalloc_array() in zcrypt driver to avoid
   calling memset() with a large byte count and get rid of the sparse
   warning as result

* tag 's390-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (39 commits)
  s390/zcrypt: Use kvcalloc() instead of kvmalloc_array()
  s390/kprobes: Remove custom insn slot allocator
  s390/boot: Remove alt_stfle_fac_list from decompressor
  s390/ap: Fix bind complete udev event sent after each AP bus scan
  s390/ap: Fix crash in AP internal function modify_bitmap()
  s390/cpacf: Make use of invalid opcode produce a link error
  s390/cpacf: Split and rework cpacf query functions
  s390/ipl: Introduce sysfs attribute 'scp_data' for dump ipl
  s390/ipl: Introduce macros for (re)ipl sysfs attribute 'scp_data'
  s390/ipl: Fix incorrect initialization of nvme dump block
  s390/ipl: Fix incorrect initialization of len fields in nvme reipl block
  s390/ipl: Do not accept z/VM CP diag X'008' cmds longer than max length
  s390/ipl: Fix size of vmcmd buffers for sending z/VM CP diag X'008' cmds
  s390/alternatives: Convert runtime sanity check into compile time check
  s390/iucv: Unexport iucv_root
  tty: hvc-iucv: Make use of iucv_alloc_device()
  s390/smsgiucv_app: Make use of iucv_alloc_device()
  s390/netiucv: Make use of iucv_alloc_device()
  s390/vmlogrdr: Make use of iucv_alloc_device()
  s390/iucv: Provide iucv_alloc_device() / iucv_release_device()
  ...
2024-05-21 12:09:36 -07:00
arch more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
block bd_inode series 2024-05-21 09:51:42 -07:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto This push fixes a bug in the new ecc P521 code as well as a buggy 2024-05-20 08:47:54 -07:00
Documentation phy-for-6.10 2024-05-21 11:19:18 -07:00
drivers more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
fs bd_inode series 2024-05-21 09:51:42 -07:00
include more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
init Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
io_uring The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
ipc Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
kernel getting rid of bogus set_blocksize() uses, switching it 2024-05-21 08:34:51 -07:00
lib Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm getting rid of bogus set_blocksize() uses, switching it 2024-05-21 08:34:51 -07:00
net more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
rust The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
samples Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
scripts more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
security KEYS: trusted: Do not use WARN when encode fails 2024-05-21 02:35:10 +03:00
sound soundwire updates for 6.10 2024-05-21 11:23:36 -07:00
tools asm-generic cleanups for 6.10 2024-05-20 15:18:34 -07:00
usr kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
virt The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap Another not-too-busy cycle for documentation, including: 2024-05-13 10:51:53 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer 2024-03-27 13:41:02 -05:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS phy-for-6.10 2024-05-21 11:19:18 -07:00
Makefile Kbuild updates for v6.10 2024-05-18 12:39:20 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.