Add erdma to the kernel build environment, and sort the source
order in drivers/infiniband/Kconfig.

Link: https://lore.kernel.org/r/20220727014927.76564-12-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Add erdma ABI definitions which will be shared between kernel and
userspace. This commit also fix compile issues reported by lkp.

Link: https://lore.kernel.org/r/20220727014927.76564-11-chengyou@linux.alibaba.com


Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Add the main erdma module, which provides interface to infiniband
subsystem.

This commit includes a modification from Christophe, that using the bitmap
API to allocate bitmaps instead of hand-writing. And the commit also fixes
warnings reported by static checkers.

Link: https://lore.kernel.org/r/20220727014927.76564-10-chengyou@linux.alibaba.com


Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

ERDMA's transport protocol is iWarp, so the driver must support CM
interface. In CM part, we use the same way as SoftiWarp: using kernel
socket to set up the connection, then performing MPA negotiation in
kernel. So, this part of code mainly comes from SoftiWarp, base on it,
we add some more features, such as non-blocking iw_connect implementation.

This commit also fixes a duplicated include issue reported by Abaci Robot.

Link: https://lore.kernel.org/r/20220727014927.76564-9-chengyou@linux.alibaba.com


Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

The RDMA verbs implementation of erdma is divided into three files:
erdma_qp.c, erdma_cq.c, and erdma_verbs.c. Internal used functions and
datapath functions of QP/CQ are put in erdma_qp.c and erdma_cq.c, the rest
is in erdma_verbs.c.

This commit also fixes some static check warnings.

Link: https://lore.kernel.org/r/20220727014927.76564-8-chengyou@linux.alibaba.com


Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

This header file defines the main structures and functions used for RDMA
Verbs, including qp, cq, mr, ucontext, etc,.

Link: https://lore.kernel.org/r/20220727014927.76564-7-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Event queue (EQ) is the main notification way from erdma hardware to its
driver. Each erdma device contains 2 kinds EQs: asynchronous EQ (AEQ) and
completion EQ (CEQ). Per device has 1 AEQ, which used for RDMA async event
report, and max to 32 CEQs (numbered for CEQ0 to CEQ31). CEQ0 is used for
cmdq completion event report, and the rest CEQs are used for RDMA
completion event report.

Link: https://lore.kernel.org/r/20220727014927.76564-6-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Cmdq is the main control plane channel between erdma driver and hardware.
After erdma device is initialized, the cmdq channel will be active in the
whole lifecycle of this driver.

This commit also includes two modifications from Christophe, one is using
the bitmap API to allocate bitmaps instead of hand-writing, and another
is using the non-atomic bitmap API when applicable.

Link: https://lore.kernel.org/r/20220727014927.76564-5-chengyou@linux.alibaba.com


Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Add ERDMA driver main header file, defining internal used data structures
and operations. The defined data structures includes *cmdq*, which is used
as the communication channel between ERDMA driver and hardware.

Link: https://lore.kernel.org/r/20220727014927.76564-4-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

ERDMA is a PCIe device, and this file provides ERDMA hardware related
definitions, mainly including PCIe device capabilities and restrictions,
device registers definitions, doorbell space, doorbell structure
definitions and WQE definitions.

Link: https://lore.kernel.org/r/20220727014927.76564-3-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Define RDMA_DRIVER_ERDMA in enum rdma_driver_id.

Link: https://lore.kernel.org/r/20220727014927.76564-2-chengyou@linux.alibaba.com


Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Pull file descriptor fix from Al Viro:
 "Fix for breakage in #work.fd this window"

* tag 'pull-work.fd-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the breakage in close_fd_get_file() calling conventions change

Pull mm hotfixes from Andrew Morton:
 "Fixups for various recently-added and longer-term issues and a few
  minor tweaks:

   - fixes for material merged during this merge window

   - cc:stable fixes for more longstanding issues

   - minor mailmap and MAINTAINERS updates"

* tag 'mm-hotfixes-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery
  x86/kexec: fix memory leak of elf header buffer
  mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
  mm: page_isolation: use compound_nr() correctly in isolate_single_pageblock()
  mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
  MAINTAINERS: add maintainer information for z3fold
  mailmap: update Josh Poimboeuf's email

Pull delay-accounting update from Andrew Morton:
 "A single featurette for delay accounting.

  Delayed a bit because, unusually, it had dependencies on both the
  mm-stable and mm-nonmm-stable queues"

* tag 'mm-nonmm-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  delayacct: track delays from write-protect copy

The bluetooth code uses our bitmap infrastructure for the two bits (!)
of connection setup flags, and in the process causes odd problems when
it converts between a bitmap and just the regular values of said bits.

It's completely pointless to do things like bitmap_to_arr32() to convert
a bitmap into a u32.  It shoudln't have been a bitmap in the first
place.  The reason to use bitmaps is if you have arbitrary number of
bits you want to manage (not two!), or if you rely on the atomicity
guarantees of the bitmap setting and clearing.

The code could use an "atomic_t" and use "atomic_or/andnot()" to set and
clear the bit values, but considering that it then copies the bitmaps
around with "bitmap_to_arr32()" and friends, there clearly cannot be a
lot of atomicity requirements.

So just use a regular integer.

In the process, this avoids the warnings about erroneous use of
bitmap_from_u64() which were triggered on 32-bit architectures when
conversion from a u64 would access two words (and, surprise, surprise,
only one word is needed - and indeed overkill - for a 2-bit bitmap).

That was always problematic, but the compiler seems to notice it and
warn about the invalid pattern only after commit 0a97953f ("lib: add
bitmap_{from,to}_arr64") changed the exact implementation details of
'bitmap_from_u64()', as reported by Sudip Mukherjee and Stephen Rothwell.

Fixes: fe92ee64 ("Bluetooth: hci_core: Rework hci_conn_params flags")
Link: https://lore.kernel.org/all/YpyJ9qTNHJzz0FHY@debian/
Link: https://lore.kernel.org/all/20220606080631.0c3014f2@canb.auug.org.au/
Link: https://lore.kernel.org/all/20220605162537.1604762-1-yury.norov@gmail.com/


Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

It used to grab an extra reference to struct file rather than
just transferring to caller the one it had removed from descriptor
table.  New variant doesn't, and callers need to be adjusted.

Reported-and-tested-by:  <syzbot+47dd250f527cb7bebf24@syzkaller.appspotmail.com>
Fixes: 6319194e

 ("Unify the primitives for file descriptor closing")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Pull x86 SGX fix from Thomas Gleixner:
 "A single fix for x86/SGX to prevent that memory which is allocated for
  an SGX enclave is accounted to the wrong memory control group"

* tag 'x86-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Set active memcg prior to shmem allocation

Pull x86 mm cleanup from Thomas Gleixner:
 "Use PAGE_ALIGNED() instead of open coding it in the x86/mm code"

* tag 'x86-mm-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)

Pull x86 microcode updates from Thomas Gleixner:

 - Disable late microcode loading by default. Unless the HW people get
   their act together and provide a required minimum version in the
   microcode header for making a halfways informed decision its just
   lottery and broken.

 - Warn and taint the kernel when microcode is loaded late

 - Remove the old unused microcode loader interface

 - Remove a redundant perf callback from the microcode loader

* tag 'x86-microcode-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Remove unnecessary perf callback
  x86/microcode: Taint and warn on late loading
  x86/microcode: Default-disable late loading
  x86/microcode: Rip out the OLD_INTERFACE

Pull x86 cleanups from Thomas Gleixner:
 "A set of small x86 cleanups:

   - Remove unused headers in the IDT code

   - Kconfig indendation and comment fixes

   - Fix all 'the the' typos in one go instead of waiting for bots to
     fix one at a time"

* tag 'x86-cleanups-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Fix all occurences of the "the the" typo
  x86/idt: Remove unused headers
  x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug
  x86/Kconfig: Fix indentation and add endif comments to arch/x86/Kconfig

Pull x86 boot update from Thomas Gleixner:
 "Use strlcpy() instead of strscpy() in arch_setup()"

* tag 'x86-boot-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/setup: Use strscpy() to replace deprecated strlcpy()

Pull clockevent/clocksource updates from Thomas Gleixner:

 - Device tree bindings for MT8186

 - Tell the kernel that the RISC-V SBI timer stops in deeper power
   states

 - Make device tree parsing in sp804 more robust

 - Dead code removal and tiny fixes here and there

 - Add the missing SPDX identifiers

* tag 'timers-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value
  clocksource/drivers/timer-ti-dm: Remove unnecessary NULL check
  clocksource/drivers/timer-sun5i: Convert to SPDX identifier
  clocksource/drivers/timer-sun4i: Convert to SPDX identifier
  clocksource/drivers/pistachio: Convert to SPDX identifier
  clocksource/drivers/orion: Convert to SPDX identifier
  clocksource/drivers/lpc32xx: Convert to SPDX identifier
  clocksource/drivers/digicolor: Convert to SPDX identifier
  clocksource/drivers/armada-370-xp: Convert to SPDX identifier
  clocksource/drivers/mips-gic-timer: Convert to SPDX identifier
  clocksource/drivers/jcore: Convert to SPDX identifier
  clocksource/drivers/bcm_kona: Convert to SPDX identifier
  clocksource/drivers/sp804: Avoid error on multiple instances
  clocksource/drivers/riscv: Events are stopped during CPU suspend
  clocksource/drivers/ixp4xx: Drop boardfile probe path
  dt-bindings: timer: Add compatible for Mediatek MT8186

Pull scheduler fix from Thomas Gleixner:
 "Fix the fallout of sysctl code move which placed the init function
  wrong"

* tag 'sched-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/autogroup: Fix sysctl move

Pull perf fixes from Thomas Gleixner:

  - Make the ICL event constraints match reality

  - Remove a unused local variable

* tag 'perf-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Remove unused local variable
  perf/x86/intel: Fix event constraints for ICL

Pull perf fixlet from Thomas Gleixner:
 "Trivial indentation fix in Kconfig"

* tag 'perf-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/Kconfig: Fix indentation in the Kconfig file

Pull objtool fixes from Thomas Gleixner:

 - Handle __ubsan_handle_builtin_unreachable() correctly and treat it as
   noreturn

 - Allow architectures to select uaccess validation

 - Use the non-instrumented bit test for test_cpu_has() to prevent
   escape from non-instrumentable regions

 - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape
   from non-instrumentable regions

 - Mark a few tiny inline as __always_inline to prevent GCC from
   bringing them out of line and instrumenting them

 - Mark the empty stub context_tracking_enabled() as always inline as
   GCC brings them out of line and instruments the empty shell

 - Annotate ex_handler_msr_mce() as dead end

* tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/extable: Annotate ex_handler_msr_mce() as a dead end
  context_tracking: Always inline empty stubs
  x86: Always inline on_thread_stack() and current_top_of_stack()
  jump_label,noinstr: Avoid instrumentation for JUMP_LABEL=n builds
  x86/cpu: Elide KCSAN for cpu_has() and friends
  objtool: Mark __ubsan_handle_builtin_unreachable() as noreturn
  objtool: Add CONFIG_HAVE_UACCESS_VALIDATION

Pull more SCSI updates from James Bottomley:
 "Mostly small bug fixes plus other trivial updates.

  The major change of note is moving ufs out of scsi and a minor update
  to lpfc vmid handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
  scsi: qla2xxx: Remove unused 'ql_dm_tgt_ex_pct' parameter
  scsi: qla2xxx: Remove setting of 'req' and 'rsp' parameters
  scsi: mpi3mr: Fix kernel-doc
  scsi: lpfc: Add support for ATTO Fibre Channel devices
  scsi: core: Return BLK_STS_TRANSPORT for ALUA transitioning
  scsi: sd_zbc: Prevent zone information memory leak
  scsi: sd: Fix potential NULL pointer dereference
  scsi: mpi3mr: Rework mrioc->bsg_device model to fix warnings
  scsi: myrb: Fix up null pointer access on myrb_cleanup()
  scsi: core: Unexport scsi_bus_type
  scsi: sd: Don't call blk_cleanup_disk() in sd_probe()
  scsi: ufs: ufshcd: Delete unnecessary NULL check
  scsi: isci: Fix typo in comment
  scsi: pmcraid: Fix typo in comment
  scsi: smartpqi: Fix typo in comment
  scsi: qedf: Fix typo in comment
  scsi: esas2r: Fix typo in comment
  scsi: storvsc: Fix typo in comment
  scsi: ufs: Split the drivers/scsi/ufs directory
  scsi: qla1280: Remove redundant variable
  ...

Pull hardware timestamping subsystem from Thierry Reding:
 "This contains the new HTE (hardware timestamping engine) subsystem
  that has been in the works for a couple of months now.

  The infrastructure provided allows for drivers to register as hardware
  timestamp providers, while consumers will be able to request events
  that they are interested in (such as GPIOs and IRQs) to be timestamped
  by the hardware providers.

  Note that this currently supports only one provider, but there seems
  to be enough interest in this functionality and we expect to see more
  drivers added once this is merged"

[ Linus Walleij mentions the Intel PMC in the Elkhart and Tiger Lake
  platforms as another future timestamp provider ]

* tag 'hte/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  dt-bindings: timestamp: Correct id path
  dt-bindings: Renamed hte directory to timestamp
  hte: Uninitialized variable in hte_ts_get()
  hte: Fix off by one in hte_push_ts_ns()
  hte: Fix possible use-after-free in tegra_hte_test_remove()
  hte: Remove unused including <linux/version.h>
  MAINTAINERS: Add HTE Subsystem
  hte: Add Tegra HTE test driver
  tools: gpio: Add new hardware clock type
  gpiolib: cdev: Add hardware timestamp clock type
  gpio: tegra186: Add HTE support
  gpiolib: Add HTE support
  dt-bindings: Add HTE bindings
  hte: Add Tegra194 HTE kernel provider
  drivers: Add hardware timestamp engine (HTE) subsystem
  Documentation: Add HTE subsystem guide

Pull more Kbuild updates from Masahiro Yamada:

 - Fix build regressions for parisc, csky, nios2, openrisc

 - Simplify module builds for CONFIG_LTO_CLANG and CONFIG_X86_KERNEL_IBT

 - Remove arch/parisc/nm, which was presumably a workaround for old
   tools

 - Check the odd combination of EXPORT_SYMBOL and 'static' precisely

 - Make external module builds robust against "too long argument error"

 - Support j, k keys for moving the cursor in nconfig

* tag 'kbuild-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
  kbuild: Allow to select bash in a modified environment
  scripts: kconfig: nconf: make nconfig accept jk keybindings
  modpost: use fnmatch() to simplify match()
  modpost: simplify mod->name allocation
  kbuild: factor out the common objtool arguments
  kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o
  kbuild: clean .tmp_* pattern by make clean
  kbuild: remove redundant cleanups in scripts/link-vmlinux.sh
  kbuild: rebuild multi-object modules when objtool is updated
  kbuild: add cmd_and_savecmd macro
  kbuild: make *.mod rule robust against too long argument error
  kbuild: make built-in.a rule robust against too long argument error
  kbuild: check static EXPORT_SYMBOL* by script instead of modpost
  parisc: remove arch/parisc/nm
  kbuild: do not create *.prelink.o for Clang LTO or IBT
  kbuild: replace $(linked-object) with CONFIG options
  kbuild: do not try to parse *.cmd files for objects provided by compiler
  kbuild: replace $(if A,A,B) with $(or A,B) in scripts/Makefile.modpost
  modpost: squash if...else-if in find_elf_symbol2()
  modpost: reuse ARRAY_SIZE() macro for section_mismatch()
  ...

Pull vfs pathname updates from Al Viro:
 "Several cleanups in fs/namei.c"

* tag 'pull-18-rc1-work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  namei: cleanup double word in comment
  get rid of dead code in legitimize_root()
  fs/namei.c:reserve_stack(): tidy up the call of try_to_unlazy()

Pull mount handling updates from Al Viro:
 "Cleanups (and one fix) around struct mount handling.

  The fix is usermode_driver.c one - once you've done kern_mount(), you
  must kern_unmount(); simple mntput() will end up with a leak. Several
  failure exits in there messed up that way... In practice you won't hit
  those particular failure exits without fault injection, though"

* tag 'pull-18-rc1-work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  move mount-related externs from fs.h to mount.h
  blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
  m->mnt_root->d_inode->i_sb is a weird way to spell m->mnt_sb...
  linux/mount.h: trim includes
  uninline may_mount() and don't opencode it in fspick(2)/fsopen(2)

Pull file descriptor updates from Al Viro.

 - Descriptor handling cleanups

* tag 'pull-18-rc1-work.fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Unify the primitives for file descriptor closing
  fs: remove fget_many and fput_many interface
  io_uring_enter(): don't leave f.flags uninitialized

Pull cifs client fixes from Steve French:
 "Nine cifs/smb3 client fixes.

  Includes DFS fixes, some cleanup of leagcy SMB1 code, duplicated
  message cleanup and a double free and deadlock fix"

* tag '5.19-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix uninitialized pointer in error case in dfs_cache_get_tgt_share
  cifs: skip trailing separators of prefix paths
  cifs: update internal module number
  cifs: version operations for smb20 unneeded when legacy support disabled
  cifs: do not build smb1ops if legacy support is disabled
  cifs: fix potential deadlock in direct reclaim
  cifs: when extending a file with falloc we should make files not-sparse
  cifs: remove repeated debug message on cifs_put_smb_ses()
  cifs: fix potential double free during failed mount

This fixes the build error when the system has a default bash version
which is too old to support associative array variables.

The build error log as fellowing:
linux/scripts/check-local-export: line 11: declare: -A: invalid option
declare: usage: declare [-afFirtx] [-p] [name[=value] ...]

Signed-off-by: Schspa Shi <schspa@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Make nconfig accept jk keybindings for movement in addition to arrow
keys.

Signed-off-by: Isak Ellmer <isak01@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Replace the own implementation for wildcard (glob) matching with
a function call to fnmatch().

Also, change the return type to 'bool'.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

mod->name is set to the ELF filename with the suffix ".o" stripped.

The current code calls strdup() and free() to manipulate the string,
but a simpler approach is to pass new_module() with the name length
subtracted by 2.

Also, check if the passed filename ends with ".o" before stripping it.

The current code blindly chops the suffix:

    tmp[strlen(tmp) - 2] = '\0'

It will cause buffer under-run if strlen(tmp) < 2;

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

scripts/Makefile.build and scripts/link-vmlinux.sh have similar setups
for the objtool arguments.

It was difficult to factor out them because all the vmlinux build rules
were written in a shell script. It is somewhat tedious to touch the two
files every time a new objtool option is supported.

To reduce the code duplication, move the objtool for vmlinux.o into
scripts/Makefile.vmlinux_o. Then, move the common macros to Makefile.lib
so they are shared between Makefile.build and Makefile.vmlinux_o.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)

This is a preparation for moving the objtool rule in the next commit.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)