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As VM_DENYWRITE does no longer exists, let's spring-clean the
documentation of get_write_access() and friends.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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Let's also remove masking off MAP_DENYWRITE from ksys_mmap_pgoff():
the last in-tree occurrence of MAP_DENYWRITE is now in LEGACY_MAP_MASK,
which accepts the flag e.g., for MAP_SHARED_VALIDATE; however, the flag
is ignored throughout the kernel now.
Add a comment to LEGACY_MAP_MASK stating that MAP_DENYWRITE is ignored.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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All in-tree users of MAP_DENYWRITE are gone. MAP_DENYWRITE cannot be
set from user space, so all users are gone; let's remove it.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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At exec time when we mmap the new executable via MAP_DENYWRITE we have it
opened via do_open_execat() and already deny_write_access()'ed the file
successfully. Once exec completes, we allow_write_acces(); however,
we set mm->exe_file in begin_new_exec() via set_mm_exe_file() and
also deny_write_access() as long as mm->exe_file remains set. We'll
effectively deny write access to our executable via mm->exe_file
until mm->exe_file is changed -- when the process is removed, on new
exec, or via sys_prctl(PR_SET_MM_MAP/EXE_FILE).
Let's remove all usage of MAP_DENYWRITE, it's no longer necessary for
mm->exe_file.
In case of an elf interpreter, we'll now only deny write access to the file
during exec. This is somewhat okay, because the interpreter behaves
(and sometime is) a shared library; all shared libraries, especially the
ones loaded directly in user space like via dlopen() won't ever be mapped
via MAP_DENYWRITE, because we ignore that from user space completely;
these shared libraries can always be modified while mapped and executed.
Let's only special-case the main executable, denying write access while
being executed by a process. This can be considered a minor user space
visible change.
While this is a cleanup, it also fixes part of a problem reported with
VM_DENYWRITE on overlayfs, as VM_DENYWRITE is effectively unused with
this patch and will be removed next:
"Overlayfs did not honor positive i_writecount on realfile for
VM_DENYWRITE mappings." [1]
[1] https://lore.kernel.org/r/YNHXzBgzRrZu1MrD@miu.piliscsaba.redhat.com/
Reported-by: Chengguang Xu <cgxu519@mykernel.net>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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We want to remove VM_DENYWRITE only currently only used when mapping the
executable during exec. During exec, we already deny_write_access() the
executable, however, after exec completes the VMAs mapped
with VM_DENYWRITE effectively keeps write access denied via
deny_write_access().
Let's deny write access when setting or replacing the MM exe_file. With
this change, we can remove VM_DENYWRITE for mapping executables.
Make set_mm_exe_file() return an error in case deny_write_access()
fails; note that this should never happen, because exec code does a
deny_write_access() early and keeps write access denied when calling
set_mm_exe_file. However, it makes the code easier to read and makes
set_mm_exe_file() and replace_mm_exe_file() look more similar.
This represents a minor user space visible change:
sys_prctl(PR_SET_MM_MAP/EXE_FILE) can now fail if the file is already
opened writable. Also, after sys_prctl(PR_SET_MM_MAP/EXE_FILE) the file
cannot be opened writable. Note that we can already fail with -EACCES if
the file doesn't have execute permissions.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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Let's factor the main logic out into replace_mm_exe_file(), such that
all mm->exe_file logic is contained in kernel/fork.c.
While at it, perform some simple cleanups that are possible now that
we're simplifying the individual functions.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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uselib() is the legacy systemcall for loading shared libraries.
Nowadays, applications use dlopen() to load shared libraries, completely
implemented in user space via mmap().
For example, glibc uses MAP_COPY to mmap shared libraries. While this
maps to MAP_PRIVATE | MAP_DENYWRITE on Linux, Linux ignores any
MAP_DENYWRITE specification from user space in mmap.
With this change, all remaining in-tree users of MAP_DENYWRITE use it
to map an executable. We will be able to open shared libraries loaded
via uselib() writable, just as we already can via dlopen() from user
space.
This is one step into the direction of removing MAP_DENYWRITE from the
kernel. This can be considered a minor user space visible change.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft into HEAD
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
iscsi_ibft: Fix isa_bus_to_virt not working under ARM
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Merge our fixes branch into next.
That lets us resolve a conflict in arch/powerpc/sysdev/xive/common.c.
Between cbc06f051c52 ("powerpc/xive: Do not skip CPU-less nodes when
creating the IPIs"), which moved request_irq() out of xive_init_ipis(),
and 17df41fec5b8 ("powerpc: use IRQF_NO_DEBUG for IPIs") which added
IRQF_NO_DEBUG to that request_irq() call, which has now moved.
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Kernel v5.14 has various changes to optimize unaligned memory accesses,
e.g. commit 0652035a5794 ("asm-generic: unaligned: remove byteshift helpers").
Those changes triggered an unalignment-exception and thus crashed the
bootloader on parisc because the unaligned "output_len" variable now suddenly
was read word-wise while it was read byte-wise in the past.
Fix this issue by declaring the external output_len variable as char which then
forces the compiler to generate byte-accesses.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: John David Anglin <dave.anglin@bell.net>
Bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102162
Fixes: 8c031ba63f8f ("parisc: Unbreak bootloader due to gcc-7 optimizations")
Fixes: 0652035a5794 ("asm-generic: unaligned: remove byteshift helpers")
Cc: <stable@vger.kernel.org> # v5.14+
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Commit 0e0345b77ac4 ("kbuild: redo fake deps at include/config/*.h")
simplified the Kconfig/fixdep interaction a lot.
For CONFIG_FOO_BAR_BAZ, Kconfig now touches include/config/FOO_BAR_BAZ
instead of the previous include/config/foo/bar/baz.h .
This commit simplifies the TRIM_UNUSED_KSYMS feature in a similar way:
- delete .h suffix
- delete tolower()
- put everything in 1 directory
For EXPORT_SYMBOL(FOO_BAR_BAZ), scripts/adjust_autoksyms.sh now touches
include/ksym/FOO_BAR_BAZ instead of include/ksym/foo/bar/baz.h .
This is more precise, avoiding possibly unnecessary rebuilds.
EXPORT_SYMBOL(FOO_BAR_BAZ)
EXPORT_SYMBOL(_FOO_BAR_BAZ)
EXPORT_SYMBOL(__FOO_BAR_BAZ)
were previously mapped to the same header, include/ksym/foo/bar/baz.h
but now are handled separately.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The code:
$(if $(or $(CONFIG_GCOV_KERNEL),$(CONFIG_LTO_CLANG)), ...)
... can be simpled to:
$(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), ...)
Also, remove meaningless commas at the end of $(if ...).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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get_src_version() strips 'o' or 'lto.o' from the end of the object file
path (so, postfixlen is 1 or 5), then adds 'mod'.
If you look at the code closely, mod->name already holds the base path
with the extension stripped.
Most of the code changes made by commit 7ac204b545f2 ("modpost: lto:
strip .lto from module names") was actually unneeded.
sumversion.c does not need strends(), so it can get back local in
modpost.c again.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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It seems like the implementation of the --ignore option is broken.
In check_symbols_helper, when going through the list of files, a file is
added to the list of source files to check if it matches the ignore
pattern. Instead, as stated in the comment below this condition, the
file should be added if it doesn't match the pattern.
This means that when providing an ignore pattern, the only files that
will be checked will be the ones we want the ignore, in addition to the
Kconfig files that don't match the pattern (the check in
parse_kconfig_files is done right)
Signed-off-by: Ariel Marcovitch <arielmarcovitch@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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For ARCH=um, ${CC} is used as the linker driver. Hence, the linker
options are prefixed with -Wl, .
Merge the similar code.
I replaced the -T option with the long option --script= so that it
works well with/without ${wl}.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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arch/um/Makefile passes the -f option to the ln command:
linux: vmlinux
@echo ' LINK $@'
$(Q)ln -f $< $@
So, the hard link is always re-created, and the old one is removed
anyway.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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When Clang LTO is enabled, vmlinux_link() reuses vmlinux.o instead of
re-linking ${KBUILD_VMLINUX_OBJS} and ${KBUILD_VMLINUX_LIBS}.
That is the only difference here, so merge the similar code.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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cmd_update_lto_symversions merges all the existing *.symversions, but
some of them might be stale.
If the last EXPORT_SYMBOL is removed from a C file, the *.symversions
file is not deleted or updated. It contains stale CRCs, but still they
will be used for linking the vmlinux or modules.
It is not a big deal when the EXPORT_SYMBOL is really removed. However,
when the EXPORT_SYMBOL is moved to another file, the same __crc_<symbol>
will appear twice in the merged *.symversions, possibly with different
CRCs if the function argument is changed at the same time. It would
confuse module versioning.
If no EXPORT_SYMBOL is found, let's remove *.symversions explicitly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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This is not used anywhere because the short log is displayed when
it is used through a $(call cmd,...) invocation.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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The current gen_compile_commands.py assumes that objects are always
built by a single command.
It makes sense to support cases where objects are built by a series of
commands:
cmd_<object> := <command1> ; <command2>
One use-case is that <command1> is a compiler command, and <command2>
an objtool command.
It allows *.cmd files to contain an objtool command so that any change
in it triggers object rebuilds.
If ; appears after the C source file, take the first command.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
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As noted in the comment, -mtune= has been supported since GCC 3.4. The
minimum required version of GCC to build the kernel (as specified in
Documentation/process/changes.rst) is GCC 4.9.
tune is not immediately expanded. Instead it defines a macro that will
test via cc-option later values for -mtune=. But we can skip the test
whether to use -mtune= vs. -mcpu=.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)
Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)
This allows us to pursue removing cc-option-yn.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)
Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)
This allows us to pursue removing cc-option-yn.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Use obj-y to clean up Makefile.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Currently, the install target in arch/sparc/Makefile descends into
arch/sparc/boot/Makefile to invoke the shell script, but there is no
good reason to do so.
arch/sparc/Makefile can run the shell script directly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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All of these are unneeded. The directories to descend are specified
by obj-$(CONFIG_...).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The sh arch has a install.sh script, but no Makefile actually calls it.
Remove it to keep anyone from accidentally calling it in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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When CONFIG_TRIM_UNUSED_KSYMS is enabled, I see some warnings like this:
nm: arch/x86/entry/vdso/vdso32/note.o: no symbols
$NM (both GNU nm and llvm-nm) warns when no symbol is found in the
object. Suppress the stderr.
Fangrui Song mentioned binutils>=2.37 `nm -q` can be used to suppress
"no symbols" [1], and llvm-nm>=13.0.0 supports -q as well.
We cannot use it for now, but note it as a TODO.
[1]: https://sourceware.org/bugzilla/show_bug.cgi?id=27408
Fixes: bbda5ec671d3 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
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It has been brought up a few times in various code reviews that clang
3.5 introduced -f{,no-}integrated-as as the preferred way to enable and
disable the integrated assembler, mentioning that -{no-,}integrated-as
are now considered legacy flags.
Switch the kernel over to using those variants in case there is ever a
time where clang decides to remove the non-'f' variants of the flag.
Also, fix a typo in a comment ("intergrated" -> "integrated").
Link: https://releases.llvm.org/3.5.0/tools/clang/docs/ReleaseNotes.html#new-compiler-flags
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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-Wunused-but-set-variable and -Wunused-const-variable are both disabled
for the same reason but there is a blank line between them and no blank
line between -Wno-unused-const-variable and the block.
Shuffle the new line so that it is clear that the comment applied to
both flags and the next block is separate from them.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Whenever a warning is disabled, it is helpful for future travelers to
understand why the warning is disabled and why it is acceptable to do
so. Add a comment for -Wno-gnu so that people understand why it is
disabled.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Turning on -Wformat does not reveal any instances of this warning across
several different builds so remove this line to keep the number of
disabled warnings as slim as possible.
This has been disabled since commit 61163efae020 ("kbuild: LLVMLinux:
Add Kbuild support for building kernel with Clang"), which does not
explain exactly why it was turned off but since it was so long ago in
terms of both the kernel and LLVM so it is possible that some bug got
fixed along the way.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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if_changed, if_changed_dep, and if_changed_rule must have FORCE as a
prerequisite so the command line change is detected.
Documentation/kbuild/makefiles.rst clearly explains it:
Note: It is a typical mistake to forget the FORCE prerequisite.
However, not all people follow the document.
This mistake occurred again and again, so a compelling force is needed.
Show a warning if FORCE is missing in the prerequisite of if_changed
and friends. Same for filechk.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <n.schier@avm.de>
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Add a new macro that expands into $(newer-prereqs)$(cmd-check).
It makes it easier to add common code for if_changed, if_changed_dep,
and if_changed_rule.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Add FORCE so that if_changed can detect the command line change.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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With CONFIG_LTO_CLANG, we currently link modules into native
code just before modpost, which means with TRIM_UNUSED_KSYMS
enabled, we still look at the LLVM bitcode in the .o files when
generating the list of used symbols. As the bitcode doesn't
yet have calls to compiler intrinsics and llvm-nm doesn't see
function references that only exist in function-level inline
assembly, we currently need a whitelist for TRIM_UNUSED_KSYMS to
work with LTO.
This change moves module LTO linking to happen earlier, and
thus avoids the issue with LLVM bitcode and TRIM_UNUSED_KSYMS
entirely, allowing us to also drop the whitelist from
gen_autoksyms.sh.
Link: https://github.com/ClangBuiltLinux/linux/issues/1369
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Alexander Lobakin <alobakin@pm.me>
Tested-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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cc-option, cc-option-yn, and cc-disable-warning all invoke the compiler
during build time, and can slow down the build when these checks become
stale for our supported compilers, whose minimally supported versions
increases over time. See Documentation/process/changes.rst for the
current supported minimal versions (GCC 4.9+, clang 10.0.1+). Compiler
version support for these flags may be verified on godbolt.org.
The following flags are GCC only and supported since at least GCC 4.9.
Remove cc-option and cc-disable-warning tests.
* -fno-tree-loop-im
* -Wno-maybe-uninitialized
* -fno-reorder-blocks
* -fno-ipa-cp-clone
* -fno-partial-inlining
* -femit-struct-debug-baseonly
* -fno-inline-functions-called-once
* -fconserve-stack
The following flags are supported by all supported versions of GCC and
Clang. Remove their cc-option, cc-option-yn, and cc-disable-warning tests.
* -fno-delete-null-pointer-checks
* -fno-var-tracking
* -Wno-array-bounds
The following configs are made dependent on GCC, since they use GCC
specific flags.
* READABLE_ASM
* DEBUG_SECTION_MISMATCH
-mfentry was not supported by s390-linux-gnu-gcc until gcc-9+, add a
comment.
--param=allow-store-data-races=0 was renamed to -fno-allow-store-data-races
in the GCC 10 release; add a comment.
-Wmaybe-uninitialized (GCC specific) was being added for CONFIG_GCOV,
then again unconditionally; add it only once.
Also, base RETPOLINE_CFLAGS and RETPOLINE_VDSO_CFLAGS on CONFIC_CC_IS_*
then remove cc-option tests for Clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/1436
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Kees' post inspired me to get more involved. I still have a long way to
go in terms of mastery of GNU make, but at the least I can help with
more code review. It's also helpful for me to pick up on what's missing
from the LLVM ecosystem.
Link: https://security.googleblog.com/2021/08/linux-kernel-security-done-right.html
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (ufs, qla2xxx,
target, smartpqi, lpfc, mpt3sas).
The core change causing the most churn was replacing the command
request field request with a macro, allowing us to offset map to it
and remove the redundant field; the same was also done for the tag
field.
The most impactful change is the final removal of scsi_ioctl, which
has been deprecated for over a decade"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (293 commits)
scsi: ufs: Fix ufshcd_request_sense_async() for Samsung KLUFG8RHDA-B2D1
scsi: ufs: ufs-exynos: Fix static checker warning
scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI
scsi: lpfc: Use the proper SCSI midlayer interfaces for PI
scsi: lpfc: Copyright updates for 14.0.0.1 patches
scsi: lpfc: Update lpfc version to 14.0.0.1
scsi: lpfc: Add bsg support for retrieving adapter cmf data
scsi: lpfc: Add cmf_info sysfs entry
scsi: lpfc: Add debugfs support for cm framework buffers
scsi: lpfc: Add support for maintaining the cm statistics buffer
scsi: lpfc: Add rx monitoring statistics
scsi: lpfc: Add support for the CM framework
scsi: lpfc: Add cmfsync WQE support
scsi: lpfc: Add support for cm enablement buffer
scsi: lpfc: Add cm statistics buffer support
scsi: lpfc: Add EDC ELS support
scsi: lpfc: Expand FPIN and RDF receive logging
scsi: lpfc: Add MIB feature enablement support
scsi: lpfc: Add SET_HOST_DATA mbox cmd to pass date/time info to firmware
scsi: fc: Add EDC ELS definition
...
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NAND core changes:
* Repair Miquel Raynal's email address in MAINTAINERS
* Fix a couple of spelling mistakes in Kconfig
* bbt: Skip bad blocks when searching for the BBT in NAND
* Remove never changed ret variable
Raw NAND changes:
* cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'
* intel: Fix error handling in probe
* omap: Fix kernel doc warning on 'calcuate' typo
* gpmc: Fix the ECC bytes vs. OOB bytes equation
SPI-NAND core changes:
* Properly fill the OOB area.
* Fix comment
SPI-NAND drivers changes:
* macronix: Add Quad support for serial NAND flash
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__arch_swab64() functions
No need to keep those as inline assembly functions, the compiler now
generates the same or even better optimized code.
Signed-off-by: Helge Deller <deller@gmx.de>
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Pull rdma updates from Jason Gunthorpe:
"This is quite a small cycle, no major series stands out. The HNS and
rxe drivers saw the most activity this cycle, with rxe being broken
for a good chunk of time. The significant deleted line count is due to
a SPDX cleanup series.
Summary:
- Various cleanup and small features for rtrs
- kmap_local_page() conversions
- Driver updates and fixes for: efa, rxe, mlx5, hfi1, qed, hns
- Cache the IB subnet prefix
- Rework how CRC is calcuated in rxe
- Clean reference counting in iwpm's netlink
- Pull object allocation and lifecycle for user QPs to the uverbs
core code
- Several small hns features and continued general code cleanups
- Fix the scatterlist confusion of orig_nents/nents introduced in an
earlier patch creating the append operation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (90 commits)
RDMA/mlx5: Relax DCS QP creation checks
RDMA/hns: Delete unnecessary blank lines.
RDMA/hns: Encapsulate the qp db as a function
RDMA/hns: Adjust the order in which irq are requested and enabled
RDMA/hns: Remove RST2RST error prints for hw v1
RDMA/hns: Remove dqpn filling when modify qp from Init to Init
RDMA/hns: Fix QP's resp incomplete assignment
RDMA/hns: Fix query destination qpn
RDMA/hfi1: Convert to SPDX identifier
IB/rdmavt: Convert to SPDX identifier
RDMA/hns: Bugfix for incorrect association between dip_idx and dgid
RDMA/hns: Bugfix for the missing assignment for dip_idx
RDMA/hns: Bugfix for data type of dip_idx
RDMA/hns: Fix incorrect lsn field
RDMA/irdma: Remove the repeated declaration
RDMA/core/sa_query: Retry SA queries
RDMA: Use the sg_table directly and remove the opencoded version from umem
lib/scatterlist: Fix wrong update of orig_nents
lib/scatterlist: Provide a dedicated function to support table append
RDMA/hns: Delete unused hns bitmap interface
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- Fix in i2c-hid driver for Elan touchpad quirk regression (Jim
Broadus)
- Quirk preventing ASUS Claymore from accidentally suspending whole
system (Luke D. Jones)
- Updates to the existing FW reporting mechanism, MP2 FW status checks,
adding proper power management support for amd-sfh (Basavaraj
Natikar)
- Regression fix for an issue in HID core that got uncovered by recent
USB core cleanup leading to issues when transfer_buffer_length is not
in line with wLength (Alan Stern)
- Memory leak fix in USB HID core (Anirudh Rayabharam)
- Improvement of stylus battery reporting (Dmitry Torokhov)
- Power management improvement for Goodix driver (Douglas Anderson)
- High-resolution scroll support for Magicmouse devices (José Expósito)
- Support for GHLive PS4 dongles (Daniel Nguyen)
- Support proper EV_MSC emissions to hid-apple (Vincent Lefevre)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (31 commits)
HID: usbhid: Simplify code in hid_submit_ctrl()
HID: usbhid: Fix warning caused by 0-length input reports
HID: usbhid: Fix flood of "control queue full" messages
HID: sony: Fix more ShanWan clone gamepads to not rumble when plugged in.
HID: sony: support for the ghlive ps4 dongles
HID: thrustmaster: clean up Makefile and adapt quirks
HID: i2c-hid: Fix Elan touchpad regression
HID: asus: Prevent Claymore sending suspend event
HID: amd_sfh: Add dyndbg prints for debugging
HID: amd_sfh: Add support for PM suspend and resume
HID: amd_sfh: Move hid probe after sensor is enabled
HID: amd_sfh: Add command response to check command status
HID: amd_sfh: Fix period data field to enable sensor
HID: logitech-hidpp: battery: provide CAPACITY property for newer devices
HID: thrustmaster: Fix memory leak in thrustmaster_interrupts()
HID: thrustmaster: Fix memory leak in remove
HID: thrustmaster: Fix memory leaks in probe
HID: elo: update the reference count of the usb device structure
HID: logitech-hidpp: Use 'atomic_inc_return' instead of hand-writing it
HID: apple: Add missing scan code event for keys handled by hid-apple
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.15 kernel cycle, no
core changes at all this time, just driver work!
New drivers:
- New subdriver for Intel Keem Bay (an ARM-based SoC)
- New subdriver for Qualcomm MDM9607 and SM6115
- New subdriver for ST Microelectronics STM32MP135
- New subdriver for Freescale i.MX8ULP ("Ultra Low Power")
- New subdriver for Ingenic X2100
- Support for Qualcomm PMC8180, PMC8180C, SA8155p-adp PMIC GPIO
- Support Samsung Exynos850
- Support Renesas RZ/G2L
Enhancements:
- A major refactoring of the Rockchip driver, breaking part of it out
to a separate GPIO driver in drivers/gpio
- Pin bias support on Renesas r8a77995
- Add SCI pins support to Ingenic JZ4755 and JZ4760
- Mediatek device tree bindings converted to YAML"
* tag 'pinctrl-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (53 commits)
pinctrl: renesas: Add RZ/G2L pin and gpio controller driver
pinctrl: samsung: Add Exynos850 SoC specific data
dt-bindings: pinctrl: samsung: Add Exynos850 doc
MAINTAINERS: Add maintainers for amd-pinctrl driver
pinctrl: Add Intel Keem Bay pinctrl driver
dt-bindings: pinctrl: Add bindings for Intel Keembay pinctrl driver
pinctrl: zynqmp: Drop pinctrl_unregister for devm_ registered device
dt-bindings: pinctrl: qcom-pmic-gpio: Remove the interrupts property
dt-bindings: pinctrl: qcom-pmic-gpio: Convert qcom pmic gpio bindings to YAML
dt-bindings: pinctrl: mt8195: Use real world values for drive-strength arguments
dt-bindings: mediatek: convert pinctrl to yaml
arm: dts: mt8183: Move pinfunc to include/dt-bindings/pinctrl
arm: dts: mt8135: Move pinfunc to include/dt-bindings/pinctrl
pinctrl: ingenic: Add .max_register in regmap_config
pinctrl: ingenic: Fix bias config for X2000(E)
pinctrl: ingenic: Fix incorrect pull up/down info
pinctrl: Ingenic: Add pinctrl driver for X2100.
dt-bindings: pinctrl: Add bindings for Ingenic X2100.
pinctrl: Ingenic: Add SSI pins support for JZ4755 and JZ4760.
pinctrl: Ingenic: Improve the code.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"Nothing changed in the clk framework core this time around. We did get
some updates to the basic clk types to use determine_rate for the
divider type and add a power of two fractional divider flag though.
Otherwise, this is a collection of clk driver updates. More than half
the diffstat is in the Qualcomm clk driver where we add a bunch of
data to describe clks on various SoCs and fix bugs. The other big new
thing in here is the Mediatek MT8192 clk driver. That's been under
review for a while and it's nice to see that it's finally upstream.
Beyond that it's the usual set of minor fixes and tweaks to clk
drivers. There are some non-clk driver bits in here which have all
been acked by the respective maintainers.
New Drivers:
- Support video, gpu, display clks on qcom sc7280 SoCs
- GCC clks on qcom MSM8953, SM4250/6115, and SM6350 SoCs
- Multimedia clks (MMCC) on qcom MSM8994/MSM8992
- RPMh clks on qcom SM6350 SoCs
- Support for Mediatek MT8192 SoCs
- Add display (DU and DSI) clocks on Renesas R-Car V3U
- Add I2C, DMAC, USB, sound (SSIF-2), GPIO, CANFD, and ADC clocks and
resets on Renesas RZ/G2L
Updates:
- Support the SD/OE pin on IDT VersaClock 5 and 6 clock generators
- Add power of two flag to fractional divider clk type
- Migrate some clk drivers to clk_divider_ops.determine_rate
- Migrate to clk_parent_data in gcc-sdm660
- Fix CLKOUT clocks on i.MX8MM and i.MX8MN by using imx_clk_hw_mux2
- Switch from .round_rate to .determine_rate in clk-divider-gate
- Fix clock tree update for TF-A controlled clocks for all i.MX8M
- Add missing M7 core clock for i.MX8MN
- YAML conversion of rk3399 clock controller binding
- Removal of GRF dependency for the rk3328/rk3036 pll types
- Drop CLK_IS_CRITICAL flag from Tegra fuse clk
- Make CLK_R9A06G032 Kconfig symbol invisible
- Convert various DT bindings to YAML"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (128 commits)
dt-bindings: clock: samsung: fix header path in example
clk: tegra: fix old-style declaration
clk: qcom: Add SM6350 GCC driver
MAINTAINERS: clock: include S3C and S5P in Samsung SoC clock entry
dt-bindings: clock: samsung: convert S5Pv210 AudSS to dtschema
dt-bindings: clock: samsung: convert Exynos AudSS to dtschema
dt-bindings: clock: samsung: convert Exynos4 to dtschema
dt-bindings: clock: samsung: convert Exynos3250 to dtschema
dt-bindings: clock: samsung: convert Exynos542x to dtschema
dt-bindings: clock: samsung: add bindings for Exynos external clock
dt-bindings: clock: samsung: convert Exynos5250 to dtschema
clk: vc5: Add properties for configuring SD/OE behavior
clk: vc5: Use dev_err_probe
dt-bindings: clk: vc5: Add properties for configuring the SD/OE pin
dt-bindings: clock: brcm,iproc-clocks: fix armpll properties
clk: zynqmp: Fix kernel-doc format
clk: at91: clk-generated: Limit the requested rate to our range
clk: ralink: avoid to set 'CLK_IS_CRITICAL' flag for gates
clk: zynqmp: Fix a memory leak
clk: zynqmp: Check the return type
...
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git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- mtk:
- added support for mt8192 and mt8195
- minor fix regarding address shift
- qcom:
- added compatibles for MSM8953, SM6350 and SM6115
- enable loading IPCC as a module
- misc:
- change Altera maintainer
- fix sti kernel-doc warnings
* tag 'mailbox-v5.15' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: cmdq: add multi-gce clocks support for mt8195
mailbox: cmdq: add mediatek mailbox support for mt8195
dt-bindings: gce: add gce header file for mt8195
dt-bindings: mailbox: add definition for mt8195
mailbox: qcom-apcs-ipc: Add compatible for MSM8953 SoC
dt-bindings: mailbox: Add compatible for the MSM8953
dt-bindings: mailbox: qcom-ipcc: Add compatible for SM6350
mailbox: qcom: Add support for SM6115 APCS IPC
dt-bindings: mailbox: qcom: Add SM6115 APCS compatible
soc: mediatek: cmdq: add address shift in jump
mailbox: cmdq: add mt8192 support
dt-binding: gce: add gce header file for mt8192
MAINTAINERS: Replace Ley Foon Tan as Altera Mailbox maintainer
mailbox: qcom-ipcc: Enable loading QCOM_IPCC as a module
mailbox: sti: quieten kernel-doc warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- Move all the Intel drivers into their own subdir(s) (mostly Kate's
work)
- New meraki-mx100 platform driver
- Asus WMI driver enhancements, including support for
/sys/firmware/acpi/platform_profile
- New BIOS SAR driver for Intel M.2 WWAM modems
- Alder Lake support for the Intel PMC driver
- A whole bunch of cleanups + fixes all over the place"
* tag 'platform-drivers-x86-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
platform/x86: dell-smbios-wmi: Add missing kfree in error-exit from run_smbios_call
platform/x86: dell-smbios-wmi: Avoid false-positive memcpy() warning
platform/x86: ISST: use semi-colons instead of commas
platform/x86: asus-wmi: Fix "unsigned 'retval' is never less than zero" smatch warning
platform/x86: asus-wmi: Delete impossible condition
platform/x86: hp_accel: Convert to be a platform driver
platform/x86: hp_accel: Remove _INI method call
platform/mellanox: mlxbf-pmc: fix kernel-doc notation
platform/x86/intel: pmc/core: Add GBE Package C10 fix for Alder Lake PCH
platform/x86/intel: pmc/core: Add Alder Lake low power mode support for pmc core
platform/x86/intel: pmc/core: Add Latency Tolerance Reporting (LTR) support to Alder Lake
platform/x86/intel: pmc/core: Add Alderlake support to pmc core driver
platform/x86: intel-wmi-thunderbolt: Move to intel sub-directory
platform/x86: intel-wmi-sbl-fw-update: Move to intel sub-directory
platform/x86: intel-vbtn: Move to intel sub-directory
platform/x86: intel_oaktrail: Move to intel sub-directory
platform/x86: intel_int0002_vgpio: Move to intel sub-directory
platform/x86: intel-hid: Move to intel sub-directory
platform/x86: intel_atomisp2: Move to intel sub-directory
platform/x86: intel_speed_select_if: Move to intel sub-directory
...
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Pull VFIO updates from Alex Williamson:
- Fix dma-valid return WAITED implementation (Anthony Yznaga)
- SPDX license cleanups (Cai Huoqing)
- Split vfio-pci-core from vfio-pci and enhance PCI driver matching to
support future vendor provided vfio-pci variants (Yishai Hadas, Max
Gurtovoy, Jason Gunthorpe)
- Replace duplicated reflck with core support for managing first open,
last close, and device sets (Jason Gunthorpe, Max Gurtovoy, Yishai
Hadas)
- Fix non-modular mdev support and don't nag about request callback
support (Christoph Hellwig)
- Add semaphore to protect instruction intercept handler and replace
open-coded locks in vfio-ap driver (Tony Krowiak)
- Convert vfio-ap to vfio_register_group_dev() API (Jason Gunthorpe)
* tag 'vfio-v5.15-rc1' of git://github.com/awilliam/linux-vfio: (37 commits)
vfio/pci: Introduce vfio_pci_core.ko
vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'
vfio: Use select for eventfd
PCI / VFIO: Add 'override_only' support for VFIO PCI sub system
PCI: Add 'override_only' field to struct pci_device_id
vfio/pci: Move module parameters to vfio_pci.c
vfio/pci: Move igd initialization to vfio_pci.c
vfio/pci: Split the pci_driver code out of vfio_pci_core.c
vfio/pci: Include vfio header in vfio_pci_core.h
vfio/pci: Rename ops functions to fit core namings
vfio/pci: Rename vfio_pci_device to vfio_pci_core_device
vfio/pci: Rename vfio_pci_private.h to vfio_pci_core.h
vfio/pci: Rename vfio_pci.c to vfio_pci_core.c
vfio/ap_ops: Convert to use vfio_register_group_dev()
s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM notification
s390/vfio-ap: r/w lock for PQAP interception handler function pointer
vfio/type1: Fix vfio_find_dma_valid return
vfio-pci/zdev: Remove repeated verbose license text
vfio: platform: reset: Convert to SPDX identifier
vfio: Remove struct vfio_device_ops open/release
...
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The isa_bus_to_virt is only needed under X86 and in fact the code
that sets the ibft_phys_addr is only compiled under X86.
As such lets just ifdef the code.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Vijayendra Suman <vijayendra.suman@oracle.com>
CC: Maurizio Lombardi <mlombard@redhat.com>
CC: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Remove the ibft_phys_addr as it is defined in iscsi_ibft.h
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- some small cleanups
- a fix for a bug when running as Xen PV guest which could result in
not all memory being transferred in case of a migration of the guest
- a small series for getting rid of code for supporting very old Xen
hypervisor versions nobody should be using since many years now
- a series for hardening the Xen block frontend driver
- a fix for Xen PV boot code issuing warning messages due to a stray
preempt_disable() on the non-boot processors
* tag 'for-linus-5.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: remove stray preempt_disable() from PV AP startup code
xen/pcifront: Removed unnecessary __ref annotation
x86: xen: platform-pci-unplug: use pr_err() and pr_warn() instead of raw printk()
drivers/xen/xenbus/xenbus_client.c: fix bugon.cocci warnings
xen/blkfront: don't trust the backend response data blindly
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: read response from backend only once
xen: assume XENFEAT_gnttab_map_avail_bits being set for pv guests
xen: assume XENFEAT_mmu_pt_update_preserve_ad being set for pv guests
xen: check required Xen features
xen: fix setting of max_pfn in shared_info
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