On Wed, Oct 4, 2023 at 10:52 AM Steven Rostedt wrote:
>
> On Wed, 4 Oct 2023 10:39:33 -0400
> Nick Lowell wrote:
>
> > > [ cut here ]
> > > WARNING: CPU: 5 PID: 944 at kernel/trace/trace_events_filter.c:2423
> > > apply_subsystem_
On Tue, Oct 3, 2023 at 10:29 PM Steven Rostedt wrote:
>
> On Mon, 2 Oct 2023 10:41:48 -0400
> Nicholas Lowell wrote:
>
> > @@ -2411,7 +2418,12 @@ int apply_subsystem_event_filter(struct
> > trace_subsystem_dir *dir,
> > }
> >
> > if (!strcmp(strstrip(filter_string), "0")) {
> > -
Sending again in plain text mode.
Thanks for the great feedback! Hopefully my inline comments/questions
aren't garbled.
On Sat, Sep 30, 2023 at 4:04 AM Steven Rostedt wrote:
>
> On Tue, 26 Sep 2023 10:20:58 -0400
> Nicholas Lowell wrote:
>
> > From: Nicholas Lowell
> >
> > If there are no
mention it, I see it, and it does seem
consistent in that regard.
Justin, is your formatter configurable to match that convention?
Maybe it's still useful, as long as you configure it to stick to the
pre-existing convention.
--
Thanks,
~Nick Desaulniers
|3 +
> scripts/get_maintainer.pl | 3334
> +++--
> 2 files changed, 1718 insertions(+), 1619 deletions(-)
> ---
> base-commit: 6465e260f48790807eef06b583b38ca9789b6072
> change-id: 20230926-get_maintainer_add_d-07424a814e72
>
> Best regards,
> --
> Justin Stitt
>
--
Thanks,
~Nick Desaulniers
lls through to the next function"
>
> which is what we normally do in this type of situation.
>
> It may be caused by UB, or a compiler bug, but either way we should
> figure out the root cause.
We probably want to creduce or cvise this. IIRC we still have
outstanding issues with switch statements with user-annotated
unreachable branches not getting eliminated.
--
Thanks,
~Nick Desaulniers
- \
CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
defconfig arch/arm64/kernel/vdso32/
Suggested-by: Nathan Chancellor
Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
Reviewed-by: Vincenzo Frascino
---
Changes V2 -> V3:
* Pick up reviewed by tags.
Changes
his component in
Rust from the start, 51 (73.9%) of these bugs would not have been
possible."
--
Thanks,
~Nick Desaulniers
On Fri, Apr 16, 2021 at 11:47 AM Paul E. McKenney wrote:
>
> On Thu, Apr 15, 2021 at 11:04:37PM -0700, Nick Desaulniers wrote:
> > On Thu, Apr 15, 2021 at 9:27 PM Boqun Feng wrote:
> > >
> > > But I think the Rust Community still wants to have a good memory model,
he ioresources tree, so that it can be
used later on for implementing strict /dev/mem.
* Minor cleanups and re-base
Signed-off-by: Nick Kossifidis
---
arch/riscv/include/asm/elf.h| 6 +++
arch/riscv/include/asm/kexec.h | 19 +---
arch/riscv/kernel/Makefile |
, messing things
up, just re-use the previous pre-allocated resource and free any
unused resources after both loops finish.
Signed-off-by: Nick Kossifidis
---
arch/riscv/kernel/setup.c | 91 ---
1 file changed, 46 insertions(+), 45 deletions(-)
diff --git a/arch
dt address of the included fdt.
* Use SYM_* macros on kexec_relocate.S.
* Compatibility with STRICT_KERNEL_RWX.
* Compatibility with HOTPLUG_CPU for SMP
* Small cleanups
Signed-off-by: Nick Kossifidis
---
arch/riscv/Kconfig | 15 +++
arch/riscv/include/asm/kexec.h
Add RISC-V to the list of supported kexec architectures, we need to
add the definition early-on so that later patches can use it.
EM_RISCV is 243 as per ELF psABI specification here:
https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md
Signed-off-by: Nick Kossifidis
used later on for implementing strict /dev/mem
* Use linux,usable-memory on /memory instead of a new binding
* USe a reserved-memory node for ELF core header
Nick Kossifidis (5):
RISC-V: Add EM_RISCV to kexec UAPI header
RISC-V: Add kexec support
RISC-V: Improve init_resources
RISC-V:
ous kernel
through /proc/vmcore, using the vmcore-dmesg utility from
kexec-tools.
v4:
* Rebase on top of "fixes" branch
v3:
* Rebase
v2:
* Use linux,usable-memory on /memory instead of a new binding
* Use a reserved-memory node for ELF core header
Signed-off-by: Nick Kossifidis
---
On Thu, Apr 15, 2021 at 9:27 PM Boqun Feng wrote:
>
> [Copy LKMM people, Josh, Nick and Wedson]
>
> On Thu, Apr 15, 2021 at 08:58:16PM +0200, Peter Zijlstra wrote:
> > On Wed, Apr 14, 2021 at 08:45:51PM +0200, oj...@kernel.org wrote:
> >
> > > Rust is a systems
On Wed, Apr 14, 2021 at 5:43 PM Miguel Ojeda
wrote:
>
> On Thu, Apr 15, 2021 at 1:19 AM Nick Desaulniers
> wrote:
> >
> > -Oz in clang typically generates larger kernel code than -Os; LLVM
> > seems to aggressively emit libcalls even when the setup for a call
> >
o := n
> KCSAN_SANITIZE_cmdline.o := n
>
> ifdef CONFIG_FUNCTION_TRACER
> -CFLAGS_REMOVE_cmdline.o = -pg
> +CFLAGS_REMOVE_cmdline.o = $(CC_FLAGS_FTRACE)
> endif
>
> CFLAGS_cmdline.o := -fno-stack-protector -fno-jump-tables
> --
> 2.20.1
>
>
>
--
Thanks,
~Nick Desaulniers
On Thu, Apr 15, 2021 at 6:31 AM Vincenzo Frascino
wrote:
>
>
>
> On 4/14/21 10:45 PM, Nick Desaulniers wrote:
> > Clang can assemble these files just fine; this is a relic from the top
> > level Makefile conditionally adding this. We no longer need --prefix,
> >
On Thu, Apr 15, 2021 at 12:10 AM Greg Kroah-Hartman
wrote:
>
> On Wed, Apr 14, 2021 at 04:24:45PM -0700, Nick Desaulniers wrote:
> > On Wed, Apr 14, 2021 at 12:35 PM Linus Torvalds
> > wrote:
> > >
> > > On Wed, Apr 14, 2021 at 11:47 AM wrote
at:
>
> rust-for-li...@vger.kernel.org
>
> and take a look at the project itself at:
>
> https://github.com/Rust-for-Linux
Looks like Wedson's writeup is now live. Nice job Wedson!
https://security.googleblog.com/2021/04/rust-in-linux-kernel.html
--
Thanks,
~Nick Desaulniers
SYM_NAME_LEN
> -#define KSYM_NAME_LEN 256
> +#define KSYM_NAME_LEN 512
> #endif
>
> struct perf_record_ksymbol {
> diff --git a/tools/lib/symbol/kallsyms.h b/tools/lib/symbol/kallsyms.h
> index 72ab9870454b..542f9b059c3b 100644
> --- a/tools/lib/symbol/kallsyms.h
> +++ b/tools/lib/symbol/kallsyms.h
> @@ -7,7 +7,7 @@
> #include
>
> #ifndef KSYM_NAME_LEN
> -#define KSYM_NAME_LEN 256
> +#define KSYM_NAME_LEN 512
> #endif
>
> static inline u8 kallsyms2elf_binding(char type)
> --
> 2.17.1
>
--
Thanks,
~Nick Desaulniers
renced from Kconfig (so it needs export),
> +# and from include/config/auto.conf.cmd to detect the compiler upgrade.
> +CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed
> 's/\#//g')
> +
> +ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
> +CLANG_FLAGS+= $(TENTATIVE_CLANG_FLAGS)
> KBUILD_CFLAGS += $(CLANG_FLAGS)
> KBUILD_AFLAGS += $(CLANG_FLAGS)
> export CLANG_FLAGS
> --
> 2.17.1
>
--
Thanks,
~Nick Desaulniers
ld
> use as a example of a real piece of code that actually does something
> meaningful?
Are you suggesting that they "rewrite it in Rust?" :^P *ducks*
(sorry, I couldn't help myself) Perhaps it would be a good exercise to
demonstrate some of the benefits of using Rust for driver work?
--
Thanks,
~Nick Desaulniers
\
> $(_a_flags) $(modkern_aflags)
>
> diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
> index 2568dbe16ed6..a83d646ecef5 100644
> --- a/scripts/kconfig/confdata.c
> +++ b/scripts/kconfig/confdata.c
> @@ -637,6 +637,56 @@ static struct conf_printer kconfig_printer_cb =
> .print_comment = kconfig_print_comment,
> };
>
> +/*
> + * rustc cfg printer
> + *
> + * This printer is used when generating the resulting rustc configuration
> + * after kconfig invocation and `defconfig` files.
> + */
> +static void rustc_cfg_print_symbol(FILE *fp, struct symbol *sym, const char
> *value, void *arg)
> +{
> + const char *str;
> +
> + switch (sym->type) {
> + case S_INT:
> + case S_HEX:
> + case S_BOOLEAN:
> + case S_TRISTATE:
> + str = sym_escape_string_value(value);
> +
> + /*
> +* We don't care about disabled ones, i.e. no need for
> +* what otherwise are "comments" in other printers.
> +*/
> + if (*value == 'n')
> + return;
> +
> + /*
> +* To have similar functionality to the C macro `IS_ENABLED()`
> +* we provide an empty `--cfg CONFIG_X` here in both `y`
> +* and `m` cases.
> +*
> +* Then, the common `fprintf()` below will also give us
> +* a `--cfg CONFIG_X="y"` or `--cfg CONFIG_X="m"`, which can
> +* be used as the equivalent of `IS_BUILTIN()`/`IS_MODULE()`.
> +*/
> + if (*value == 'y' || *value == 'm')
> + fprintf(fp, "--cfg=%s%s\n", CONFIG_, sym->name);
> +
> + break;
> + default:
> + str = value;
> + break;
> + }
> +
> + fprintf(fp, "--cfg=%s%s=%s\n", CONFIG_, sym->name, str);
> +}
> +
> +static struct conf_printer rustc_cfg_printer_cb =
> +{
> + .print_symbol = rustc_cfg_print_symbol,
> +};
> +
> /*
> * Header printer
> *
> @@ -1044,7 +1094,7 @@ int conf_write_autoconf(int overwrite)
> struct symbol *sym;
> const char *name;
> const char *autoconf_name = conf_get_autoconfig_name();
> - FILE *out, *out_h;
> + FILE *out, *out_h, *out_rustc_cfg;
> int i;
>
> if (!overwrite && is_present(autoconf_name))
> @@ -1065,6 +1115,13 @@ int conf_write_autoconf(int overwrite)
> return 1;
> }
>
> + out_rustc_cfg = fopen(".tmp_rustc_cfg", "w");
> + if (!out_rustc_cfg) {
> + fclose(out);
> + fclose(out_h);
> + return 1;
> + }
> +
> conf_write_heading(out, _printer_cb, NULL);
> conf_write_heading(out_h, _printer_cb, NULL);
>
> @@ -1076,9 +1133,11 @@ int conf_write_autoconf(int overwrite)
> /* write symbols to auto.conf and autoconf.h */
> conf_write_symbol(out, sym, _printer_cb, (void *)1);
> conf_write_symbol(out_h, sym, _printer_cb, NULL);
> + conf_write_symbol(out_rustc_cfg, sym, _cfg_printer_cb,
> NULL);
> }
> fclose(out);
> fclose(out_h);
> + fclose(out_rustc_cfg);
>
> name = getenv("KCONFIG_AUTOHEADER");
> if (!name)
> @@ -1097,6 +1156,12 @@ int conf_write_autoconf(int overwrite)
> if (rename(".tmpconfig", autoconf_name))
> return 1;
>
> + name = "include/generated/rustc_cfg";
> + if (make_parent_dir(name))
> + return 1;
> + if (rename(".tmp_rustc_cfg", name))
> + return 1;
> +
> return 0;
> }
>
> diff --git a/scripts/rust-version.sh b/scripts/rust-version.sh
> new file mode 100755
> index ..67b6d31688e2
> --- /dev/null
> +++ b/scripts/rust-version.sh
> @@ -0,0 +1,31 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# rust-version rust-command
> +#
> +# Print the compiler version of `rust-command' in a 5 or 6-digit form
> +# such as `14502' for rustc-1.45.2 etc.
> +#
> +# Returns 0 if not found (so that Kconfig does not complain)
> +compiler="$*"
> +
> +if [ ${#compiler} -eq 0 ]; then
> + echo "Error: No compiler specified." >&2
> + printf "Usage:\n\t$0 \n" >&2
> + exit 1
> +fi
> +
> +if ! command -v $compiler >/dev/null 2>&1; then
> + echo 0
> + exit 0
> +fi
> +
> +VERSION=$($compiler --version | cut -f2 -d' ')
> +
> +# Cut suffix if any (e.g. `-dev`)
> +VERSION=$(echo $VERSION | cut -f1 -d'-')
> +
> +MAJOR=$(echo $VERSION | cut -f1 -d'.')
> +MINOR=$(echo $VERSION | cut -f2 -d'.')
> +PATCHLEVEL=$(echo $VERSION | cut -f3 -d'.')
> +printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
> --
> 2.17.1
>
--
Thanks,
~Nick Desaulniers
: linux-r...@vger.kernel.org
...
> +F: rust/
> +F: samples/rust/
> +F: Documentation/rust/
Probably some other files, too? Like the target.json files under
arch/{arch}/rust/ ?
--
Thanks,
~Nick Desaulniers
+Building
> +
> +
> +Building a kernel with Clang or a complete LLVM toolchain is the best
> supported
> +setup at the moment. That is::
> +
> +make ARCH=... CROSS_COMPILE=... CC=clang -j...
> +
> +or::
> +
> +make ARCH=... CROSS_COMPILE=... LLVM=1 -j...
Please reorder; prefer LLVM=1 to CC=clang. Probably worth another
cross reference to :ref:`kbuild_llvm`.
> +
> +Using GCC also works for some configurations, but it is *very* experimental
> at
> +the moment.
> +
> +
> +Hacking
> +---
> +
> +If you want to dive deeper, take a look at the source code of the samples
> +at ``samples/rust/``, the Rust support code under ``rust/`` and
> +the ``Rust hacking`` menu under ``Kernel hacking``.
> +
> +If you use GDB/Binutils and Rust symbols aren't getting demangled, the reason
> +is your toolchain doesn't support Rust's new v0 mangling scheme yet. There
> are
"new" as in changed, or "new" as in Rust previously did not mangle symbols?
> +a few ways out:
> +
> + - If you don't mind building your own tools, we provide the following fork
> +with the support cherry-picked from GCC on top of very recent releases:
> +
> +
> https://github.com/Rust-for-Linux/binutils-gdb/releases/tag/gdb-10.1-release-rust
> +
> https://github.com/Rust-for-Linux/binutils-gdb/releases/tag/binutils-2_35_1-rust
> +
> + - If you only need GDB and can enable ``CONFIG_DEBUG_INFO``, do so:
> +some versions of GDB (e.g. vanilla GDB 10.1) are able to use
> +the pre-demangled names embedded in the debug info.
> +
> + - If you don't need loadable module support, you may compile without
> +the ``-Zsymbol-mangling-version=v0`` flag. However, we don't maintain
> +support for that, so avoid it unless you are in a hurry.
> --
> 2.17.1
>
--
Thanks,
~Nick Desaulniers
least be part of Wedson's core responsibilities,
shouldn't this be "Supported." Per Maintainers:
87 S: *Status*, one of the following:
88 Supported: Someone is actually paid to look after this.
89 Maintained: Someone actually looks after it.
Either way,
Acked-by: Nick Des
- \
CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
defconfig arch/arm64/kernel/vdso32/
Suggested-by: Nathan Chancellor
Signed-off-by: Nick Desaulniers
---
Changes V1 -> V2:
* Remove --prefix, --gcc-toolchain, COMPAT_GCC_TOOLCHAIN, and
COMPAT_GCC_TOOLCHAIN_DIR as per Nat
On Wed, Apr 14, 2021 at 12:04 PM Eric Biggers wrote:
>
> On Wed, Apr 14, 2021 at 11:53:51AM -0700, Nick Terrell wrote:
> > On Wed, Apr 14, 2021 at 11:35 AM Eric Biggers wrote:
> > >
> > > On Wed, Apr 14, 2021 at 11:01:29AM -0700, Nick Terrell wrote:
> > > &
lternative_endif
> macro, shuffling the .org directives so that the length validation
> happen will always happen in the same subsections. alternative_insn has
> not shown any issue yet but it appears that it could have the same issue
> in the future so just preemptively change it.
Thanks Nath
On Wed, Apr 14, 2021 at 11:35 AM Eric Biggers wrote:
>
> On Wed, Apr 14, 2021 at 11:01:29AM -0700, Nick Terrell wrote:
> > Hi all,
> >
> > I would really like to make some progress on this and get it merged.
> > This patchset offsers:
> > * 15-30% better decom
Hi all,
I would really like to make some progress on this and get it merged.
This patchset offsers:
* 15-30% better decompression speed
* 3 years of zstd bug fixes and code improvements
* Allows us to import zstd directly from upstream so we don't fall 3
years out of date again
Thanks,
Nick
-by: Nick Desaulniers
---
arch/arm64/kernel/vdso32/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/vdso32/Makefile
b/arch/arm64/kernel/vdso32/Makefile
index 789ad420f16b..7812717f8b79 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64
/rGcdd683b516d147925212724b09ec6fb792a40041
Link: https://reviews.llvm.org/rG13a633b438b6500ecad9e4f936ebadf3411d0f44
Link: https://lkml.kernel.org/r/20210312224132.3413602-3-ndesaulni...@google.com
Signed-off-by: Nick Desaulniers
Suggested-by: Nathan Chancellor
Acked-by: Peter Oberparleiter
Reviewed-by: Nathan
had time to check this particular build!
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
> and my kvmalloc() conversion patch is in akpm/linux-next.
> I guess this should be folded into
>
> gcov: use kvmalloc()
>
> If desired, I can send a combined patch instead.
>
ested-by: Arnd Bergmann
> Suggested-by: Jessica Clarke
> Signed-off-by: Nathan Chancellor
Great work tracking down that Debian was carrying patches! Thank you!
I've run this through the same 3 assemblers.
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
> ---
> arch/arm/crypto
> On Apr 8, 2021, at 8:09 PM, Miguel Ojeda
> wrote:
>
> On Fri, Apr 9, 2021 at 2:20 AM Nick Desaulniers
> wrote:
>>
>> Quite a few other functions are declared in a header, but I don't see
>> any existing callers in tree. I wonder if the maintainer could
What can I do to help get this merged?
Cristoph, is this new patch series with the kernel wrapper API satisfactory?
Best,
Nick
On Tue, Mar 30, 2021 at 3:45 PM Nick Terrell wrote:
>
> From: Nick Terrell
>
> Please pull from
>
> g...@github.com:terrelln/linux.git t
ht help?
Then if there were side effects but you forgot to inform the compiler
that there were via an explicit volatile qualifier, and it performed
the suggested merge, oh well.
--
Thanks,
~Nick Desaulniers
Στις 2021-04-06 21:36, Alex Ghiti έγραψε:
+ /* Switch to physical addressing */
+ la s4, 1f
+ sub s4, s4, s3
+ csrwstvec, s4
+ csrwsptbr, zero
satp is used everywhere instead of sptbr. And maybe you could CSR_
naming, like you did in
Στις 2021-04-06 21:38, Alex Ghiti έγραψε:
Le 4/5/21 à 4:57 AM, Nick Kossifidis a écrit :
+
+/* Reserve a page for the control code buffer */
+#define KEXEC_CONTROL_PAGE_SIZE 4096
PAGE_SIZE instead ?
Yup, I'll change it.
+obj-${CONFIG_KEXEC}+= kexec_relocate.o machine_kexec.o
Στις 2021-04-06 11:22, Geert Uytterhoeven έγραψε:
Hi Nick,
On Tue, Apr 6, 2021 at 10:11 AM Nick Kossifidis
wrote:
Hello Geert,
Στις 2021-04-06 10:19, Geert Uytterhoeven έγραψε:
> On Mon, Apr 5, 2021 at 10:57 AM Nick Kossifidis
> wrote:
>> * Kernel region is always present and w
Στις 2021-04-07 19:29, Rob Herring έγραψε:
On Mon, Apr 05, 2021 at 11:57:07AM +0300, Nick Kossifidis wrote:
This patch series adds kexec/kdump and crash kernel
support on RISC-V. For testing the patches a patched
version of kexec-tools is needed (still a work in
progress) which can be found
On Thu, Apr 8, 2021 at 5:55 AM Zhao Xuehui wrote:
>
> The symbol 'HUF_compressWeights_wksp' is not used outside of
> huf_compress.c, so this commit marks it static.
Reviewed-by: Nick Desaulniers
Quite a few other functions are declared in a header, but I don't see
any existing caller
Cc: sta...@vger.kernel.org #5.4+
Reported-by: Prasad Sodagudi
Tested-by: Prasad Sodagudi
Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
---
Changes V1 -> V2:
* Carried Nathan's reviewed-by tag.
* Rebased on mainline, as per Andrew.
* Left off patch 2/2 from the series
ht
me more cases using strncasecmp to check the entire string
> > > such as rtrs-clt-sysfs.c does. drivers/pnp/interface.c checks
> > > "disable" command with strncasecmp but it would also work if the
> > > command is "disable-wrong".
> > >
>
On Wed, Apr 7, 2021 at 12:07 PM Borislav Petkov wrote:
>
> On Wed, Apr 07, 2021 at 09:03:28PM +0200, Borislav Petkov wrote:
> > On Wed, Apr 07, 2021 at 10:41:26AM -0700, Nick Desaulniers wrote:
> > > You do have clang-tidy installed right? `which clang-tidy`?
>
>
On Wed, Apr 7, 2021 at 2:21 PM Andrew Morton wrote:
>
> On Wed, 7 Apr 2021 11:54:55 -0700 Nick Desaulniers
> wrote:
>
> > LLVM changed the expected function signature for
> > llvm_gcda_emit_function() in the clang-11 release. Users of clang-11 or
> > newer
err..with Marco's real email address this time
On Wed, Apr 7, 2021 at 1:14 PM Nick Desaulniers wrote:
>
> (replying to
> https://lore.kernel.org/lkml/ead0e9c32a2f70e0bde6f63b3b9470e0ef13d2ee.1616107969.git.andreyk...@google.com/)
>
> Just got the bounceback, RIP. :(
>
> M
(replying to
https://lore.kernel.org/lkml/ead0e9c32a2f70e0bde6f63b3b9470e0ef13d2ee.1616107969.git.andreyk...@google.com/)
Just got the bounceback, RIP. :(
Marco is updating your epitaph.
Acked-by: Nick Desaulniers
uld
> work even-if the input is "min-wrongcommand".
>
> I found some more cases using strncasecmp to check the entire string
> such as rtrs-clt-sysfs.c does. drivers/pnp/interface.c checks
> "disable" command with strncasecmp but it would also work if the
> comman
LLVM changed the expected function signatures for
llvm_gcda_emit_function() in the clang-11 release. Drop the older
implementations and require folks to upgrade their compiler if they're
interested in GCOV support.
Signed-off-by: Nick Desaulniers
---
kernel/gcov/clang.c | 40
Cc: sta...@vger.kernel.org #5.4+
Reported-by: Prasad Sodagudi
Tested-by: Prasad Sodagudi
Signed-off-by: Nick Desaulniers
---
kernel/gcov/clang.c | 38 +-
1 file changed, 33 insertions(+), 5 deletions(-)
diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
in
userspace.
Nick Desaulniers (2):
gcov: re-fix clang-11+ support
gcov: re-drop support for clang-10
kernel/gcov/clang.c | 20
1 file changed, 4 insertions(+), 16 deletions(-)
--
2.31.1.295.g9ea45b61b8-goog
On Wed, Apr 7, 2021 at 11:23 AM Arnd Bergmann wrote:
>
> On Wed, Apr 7, 2021 at 8:07 PM Nick Desaulniers
> wrote:
> >
> > On Wed, Apr 7, 2021 at 3:52 AM kernel test robot wrote:
> > >
> > > Hi Kees,
> > >
> > > FYI, the erro
ETHOD_OF_DECLARE` to create a static struct in such a
section. Only arch/arm/mach-omap2/pm33xx-core.c uses that macro.
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
--
Thanks,
~Nick Desaulniers
> On Apr 7, 2021, at 6:53 AM, Masahiro Yamada wrote:
>
> On Thu, Apr 1, 2021 at 4:21 AM Nick Terrell wrote:
>>
>>
>>
>>> On Mar 31, 2021, at 10:48 AM, Oleksandr Natalenko
>>> wrote:
>>>
>>> Hello.
>&g
gt; I get all kinds of missing python scripts:
> FileNotFoundError: [Errno 2] No such file or directory: 'clang-tidy'
You do have clang-tidy installed right? `which clang-tidy`?
--
Thanks,
~Nick Desaulniers
BLOCK if
DEBUG_KERNEL to enable sysfs memblock debug")
Cc: Masahiro Yamada
Reported-by: Guenter Roeck
Signed-off-by: Nick Desaulniers
---
arch/mips/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e9893cd34992..702648f60
> If we have HOSTCXX why not have a CXX in toplevel Makefile?
>
> In "tools: Factor Clang, LLC and LLVM utils definitions" (see [3]) I
> did some factor-ing.
>
> For the records: Here Linus Git is my base.
>
> Ideas?
>
> Thanks.
>
> Regards,
> - Sedat -
>
Hello Geert,
Στις 2021-04-06 10:19, Geert Uytterhoeven έγραψε:
Hi Nick,
Thanks for your patch!
On Mon, Apr 5, 2021 at 10:57 AM Nick Kossifidis
wrote:
* Kernel region is always present and we know where it is, no
need to look for it inside the loop, just ignore it like the
rest
Add RISC-V to the list of supported kexec architecturs, we need to
add the definition early-on so that later patches can use it.
EM_RISCV is 243 as per ELF psABI specification here:
https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md
Signed-off-by: Nick Kossifidis
---
include
-off-by: Geert Uytterhoeven
Signed-off-by: Nick Kossifidis
---
arch/riscv/kernel/setup.c | 90 ---
1 file changed, 46 insertions(+), 44 deletions(-)
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index e85bacff1..030554bab 100644
--- a/arch
From: Nick Kossifidis
This patch allows Linux to act as a crash kernel for use with
kdump. Userspace will let the crash kernel know about the
memory region it can use through linux,usable-memory property
on the /memory node (overriding its reg property), and about the
memory region where the elf
.
* Compatibility with HOTPLUG_CPU for SMP
* Small cleanups
Signed-off-by: Nick Kossifidis
---
arch/riscv/Kconfig | 15 +++
arch/riscv/include/asm/kexec.h | 47
arch/riscv/kernel/Makefile | 5 +
arch/riscv/kernel/kexec_relocate.S | 156
inor cleanups and re-base
Signed-off-by: Nick Kossifidis
---
arch/riscv/include/asm/elf.h| 6 +++
arch/riscv/include/asm/kexec.h | 19 ---
arch/riscv/kernel/Makefile | 2 +-
arch/riscv/kernel/crash_save_regs.S | 56 +
arch/riscv/kernel/kexec_rel
on /memory instead of a new binding
* USe a reserved-memory node for ELF core header
Nick Kossifidis (5):
RISC-V: Add EM_RISCV to kexec UAPI header
RISC-V: Add kexec support
RISC-V: Improve init_resources
RISC-V: Add kdump support
RISC-V: Add crash kernel support
arch/riscv/Kconfig
if (!*s1 && *s2 == '\n' && !s2[1])
> + return true;
> + if (*s1 == '\n' && !s1[1] && !*s2)
> + return true;
> + return false;
> +}
> +EXPORT_SYMBOL(sysfs_streqcase);
This should be declared in
include/linux/string.h
in order for others to use this (as 0day bot notes).
> +
> /**
> * match_string - matches given string in an array
> * @array: array of strings
> --
> 2.25.1
>
--
Thanks,
~Nick Desaulniers
d ("usb: isp1301-omap: Convert to use GPIO descriptors")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1325
Looks consistent to me with other callers of gpiod_add_lookup_table
from .init_machine callbacks.
Reviewed-by: Nick Desaulniers
> ---
> arch/arm/mach-omap1/board
^
> = 0
> 1 warning generated.
Ooh, yeah if cpu_is_omap15xx() then irq is unused uninitialized; I
don't see any INT_1610_WAKE_UP_REQ-equlivalent for
INT_15XX_WAKE_UP_REQ.
Ok, LGTM.
Reviewed-by: Nick Desaulniers
I agree with Nathan on the Fixes tag.
>
> The p
[-Wunused-function]
> static int ams_delta_camera_power(struct device *dev, int power)
>^
> 1 warning generated.
>
> The soc_camera support was dropped without removing
> ams_delta_camera_power() function, making it unused.
>
> Signed-off-by: Maciej Falkowski
f threads
used. `-T1` (or not specifying `-T`) will produce the same output as `-T0`.
`-T0` will be faster for large files (at the default level, multiple jobs will
be spawned for files > 8MB), and be just as fast as `-T1` for smaller files.
Best,
Nick
> I also saw that M
# version here. It is the same as the clang
> > version, and
> > + # it has been already checked by
> > scripts/cc-version.sh.
> > + echo LLVM 0
> > + exit 0
> > + fi
> > + shift
> > + done
> > +}
> > +
> > +check_integrated_as "$@"
> > +
> > +orig_args="$@"
> > +
> > +# Get the first line of the --version output.
> > +IFS='
> > +'
> > +set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o
> > /dev/null 2>&1)
> > +
> > +# Split the line on spaces.
> > +IFS=' '
> > +set -- $1
> > +
> > +min_tool_version=$(dirname $0)/min-tool-version.sh
> > +
> > +if [ "$1" = GNU -a "$2" = assembler ]; then
> > + shift $(($# - 1))
> > + version=$1
> > + min_version=$($min_tool_version binutils)
> > + name=GNU
> > +else
> > + echo "$orig_args: unknown assembler invoked" >&2
> > + exit 1
> > +fi
> > +
> > +# Some distributions append a package release number, as in 2.34-4.fc32
> > +# Trim the hyphen and any characters that follow.
> > +version=${version%-*}
> > +
> > +cversion=$(get_canonical_version $version)
> > +min_cversion=$(get_canonical_version $min_version)
> > +
> > +if [ "$cversion" -lt "$min_cversion" ]; then
> > + echo >&2 "***"
> > + echo >&2 "*** Assembler is too old."
> > + echo >&2 "*** Your $name assembler version:$version"
> > + echo >&2 "*** Minimum $name assembler version: $min_version"
> > + echo >&2 "***"
> > + exit 1
> > +fi
> > +
> > +echo $name $cversion
> > --
> > 2.27.0
> >
> > --
--
Thanks,
~Nick Desaulniers
fair but small amount of churn IMO; but if Jens
is not opposed it seems fine?
--
Thanks,
~Nick Desaulniers
> On Mar 31, 2021, at 10:48 AM, Oleksandr Natalenko
> wrote:
>
> Hello.
>
> On Wed, Mar 31, 2021 at 05:39:25PM +, Nick Terrell wrote:
>>
>>
>>> On Mar 30, 2021, at 4:50 AM, Oleksandr Natalenko
>>> wrote:
>>>
>>> On Tu
> > --- a/scripts/kconfig/Makefile
> > +++ b/scripts/kconfig/Makefile
> > @@ -102,7 +102,8 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$@
> > $(srctree)/arch/$(SRCARCH)/c
> >
> > PHONY += tinyconfig
> > tinyconfig:
> > - $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
> > + $(Q)KCONFIG_ALLCONFIG=kernel/configs/tiny-base.config $(MAKE) -f
> > $(srctree)/Makefile allnoconfig
> > + $(Q)$(MAKE) -f $(srctree)/Makefile tiny.config
> >
> > # CHECK: -o cache_dir= working?
> > PHONY += testconfig
> > --
> > 2.27.0
> >
--
Thanks,
~Nick Desaulniers
DULE_SIG_SHA512
>
> -config MODULE_COMPRESS
The top level Makefile has comments and code that refer to this choice
which is now removed. I think you'll want to fix that up in this
change as well? Ah, patch 7 in the series does that:
https://lore.kernel.org/linux-kbuild/20210331133811.3221540-7-m
On Wed, Mar 31, 2021 at 6:38 AM Masahiro Yamada wrote:
>
> This seems to be useful in sub-make as well. As a preparation of
> exporting it, rename extmod-prefix to extmod_prefix because exported
> variables cannot contain hyphens.
>
> Signed-off-by: Masahiro Yamada
Reviewed-by
is identical before and after this change.
>
> No functional change. No change to object code.
Reviewed-by: Nick Desaulniers
Looks like this is from when this code was introduced in
commit 0d55ba46bfbe ("x86/cacheinfo: Move cacheinfo sysfs code to
generic infrastructure")
though this
, which
will use a
window size of up to 2MB, to match the XZ command. Note that if the file is
smaller than
the window size, it will be shrunk to the smallest power of two at least as
large as the file.
Best,
Nick Terrell
>> + endif # CONFIG_MODULE_COMPRESS_ZSTD
>> endif # CONFIG_MODUL
From: Nick Terrell
Adds decompress_sources.h which includes every .c file necessary for
zstd decompression. This is used in decompress_unzstd.c so the internal
structure of the library isn't exposed.
This allows us to upgrade the zstd library version without modifying any
callers. Instead we
From: Nick Terrell
This patch:
- Moves `include/linux/zstd.h` -> `include/linux/zstd_lib.h`
- Updates modified zstd headers to yearless copyright
- Adds a new API in `include/linux/zstd.h` that is functionally
equivalent to the in-use subset of the current API. Functions are
renamed to av
From: Nick Terrell
Please pull from
g...@github.com:terrelln/linux.git tags/v9-zstd-1.4.10
to get these changes. Alternatively the patchset is included.
This patchset upgrades the zstd library to the latest upstream release. The
current zstd version in the kernel is a modified version
Στις 2021-03-26 17:26, Rob Herring έγραψε:
On Fri, Mar 26, 2021 at 8:20 AM Christophe Leroy
wrote:
Le 26/03/2021 à 15:08, Andreas Schwab a écrit :
> On Mär 26 2021, Christophe Leroy wrote:
>
>> diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
>> index
-by: Nick Desaulniers
---
See:
https://lore.kernel.org/linux-arm-kernel/CAMj1kXE5uw4+zV3JVpfA2drOD5TZVMs5a_E5wrrnzjEYc=e...@mail.gmail.com/
for what I'd consider V1. The previous issues with .w suffixes have been
fixed or have fixes pending in LLVM:
* BL+DBG: https://reviews.llvm.org/D97236
* ORN
On Fri, Jan 29, 2021 at 1:40 AM Ard Biesheuvel wrote:
>
> On Fri, 29 Jan 2021 at 01:22, Nick Desaulniers
> wrote:
> >
> > > On Thu, 28 Jan 2021 at 20:34, Nick Desaulniers
> > > wrote:
> > > > + TEST_RX("tbh[pc, r",7, (9f-(1f
ang in mount.S and recordmcount.pl.
>
> Cc: sta...@vger.kernel.org
> Link: https://github.com/ClangBuiltLinux/linux/issues/1331
> Signed-off-by: Nathan Chancellor
Thanks for keeping this alive on clang-10, and resolving it for future releases!
Reviewed-by: Nick Desaulniers
> ---
er, there is really no point in printing the number as a 16-bit
> 'short' rather than either an 8-bit or 32-bit number, so just change
> it to a normal %d.
Thanks for the patch!
Reviewed-by: Nick Desaulniers
>
> Fixes: de8f5e4f2dc1 ("lockdep: Introduce wait-type checks")
>
ollowing correction seems to
> be needed:
Thanks Oleksandr! Looks like f2fs has been updated to use
ZSTD_maxCLevel() since the first version of these patches. I'll put up
a new version shortly with the fix, and update my test suite to build
f2fs and other users as modules, so it can catch this.
On Fri, Mar 26, 2021 at 3:02 PM kernel test robot wrote:
>
> Hi Nick,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on cryptodev/master]
> [also build test WARNING on kdave/for-next f2fs/dev-test linus/master
> v5.12-rc4 next-2
From: Nick Terrell
Adds decompress_sources.h which includes every .c file necessary for
zstd decompression. This is used in decompress_unzstd.c so the internal
structure of the library isn't exposed.
This allows us to upgrade the zstd library version without modifying any
callers. Instead we
From: Nick Terrell
Please pull from
g...@github.com:terrelln/linux.git tags/v8-zstd-1.4.10
to get these changes. Alternatively the patchset is included.
This patchset upgrades the zstd library to the latest upstream release. The
current zstd version in the kernel is a modified version
From: Nick Terrell
This patch:
- Moves `include/linux/zstd.h` -> `include/linux/zstd_lib.h`
- Adds a new API in `include/linux/zstd.h` that is functionally
equivalent to the in-use subset of the current API. Functions are
renamed to avoid symbol collisions with zstd, to make it cl
Greetings,
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On Wed, Mar 24, 2021 at 2:12 AM Zhenyu Wang wrote:
>
> On 2021.03.23 15:15:29 -0700, Nick Desaulniers wrote:
> > On Fri, Mar 19, 2021 at 11:45 PM kernel test robot wrote:
> > >
> > > Hi Nick,
> > >
> > > FYI, the error/warning still remains.
>
On Fri, Mar 19, 2021 at 11:45 PM kernel test robot wrote:
>
> Hi Nick,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> head: 1c273e10bc0cc7efb933e0ca1
ys_base == (phys_addr_t)OF_BAD_ADDR) {
> ret = -ENXIO;
> goto err_free_mbi;
> }
> --
> 2.29.2
>
--
Thanks,
~Nick Desaulniers
Integrity (CFI) checking.
>
> Instead of removing the consts, this change defines the
> list_cmp_func_t type and changes the comparison function types of
> all list_sort() callers to use const pointers, thus avoiding type
> mismatches.
>
> Suggested-by: Nick Desaulniers
> Signed-off
6578b963f
$
Should it have found a7889c6320b9 and 773e0c402534? Perhaps `git log
--grep=` should be used instead? I thought `git grep` only greps
files in the archive, not commit history?
--
Thanks,
~Nick Desaulniers
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