Le 15/02/2023 à 03:01, Rohan McLure a écrit :
> On creation and clearing of a page table mapping, instrument such calls
> by invoking page_table_check_pte_set and page_table_check_pte_clear
> respectively. These calls serve as a sanity check against illegal
> mappings.
>
> Enable
Le 15/02/2023 à 03:01, Rohan McLure a écrit :
> Add the following helpers for detecting whether a page table entry
> is a leaf and is accessible to user space.
>
> * pte_user_accessible_page
> * pmd_user_accessible_page
> * pud_user_accessible_page
>
> Also implement missing pud_user
Le 15/02/2023 à 03:01, Rohan McLure a écrit :
> The check that a higher-level entry in multi-level pages contains a page
> translation entry (pte) is performed by p{m,u,4}d_leaf stubs, which may
> be specialised for each choice of mmu. In a prior commit, we replace
> uses to the catch-all stubs,
Le 15/02/2023 à 03:01, Rohan McLure a écrit :
> Replace occurrences of p{u,m,4}d_is_leaf with p{u,m,4}_leaf, as the
> latter is the name given to checking that a higher-level entry in
> multi-level paging contains a page translation entry (pte) throughout
> all other archs.
>
> A future patch
Le 15/02/2023 à 03:01, Rohan McLure a écrit :
> Produce separate symbols for set_pte, which is to be used in
> arch/powerpc for reassignment of pte's, and set_pte_at, used in generic
> code.
>
> The reason for this distinction is to support the Page Table Check
> sanitiser. Having this
Alexandre Ghiti writes:
> From: Palmer Dabbelt
>
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
>
> Signed-off-by: Palmer Dabbelt
> ---
> arch/powerpc/include/asm/setup.h | 2 +-
> arch/powerpc/include/uapi/asm/setup.h | 2 --
>
On Thu, 22 Dec 2022 03:46:29 PST (-0800), andrzej.ha...@intel.com wrote:
__xchg will be used for non-atomic xchg macro.
Signed-off-by: Andrzej Hajda
---
arch/riscv/include/asm/atomic.h | 2 +-
arch/riscv/include/asm/cmpxchg.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff
On Tue, 03 Jan 2023 16:27:32 PST (-0800), mike.krav...@oracle.com wrote:
zap_page_range was originally designed to unmap pages within an address
range that could span multiple vmas. While working on [1], it was
discovered that all callers of zap_page_range pass a range entirely within
a single
Add the following helpers for detecting whether a page table entry
is a leaf and is accessible to user space.
* pte_user_accessible_page
* pmd_user_accessible_page
* pud_user_accessible_page
Also implement missing pud_user definitions for both Book3S/nohash 64-bit
systems, and pmd_user for
On creation and clearing of a page table mapping, instrument such calls
by invoking page_table_check_pte_set and page_table_check_pte_clear
respectively. These calls serve as a sanity check against illegal
mappings.
Enable ARCH_SUPPORTS_PAGE_TABLE_CHECK for all platforms.
Use set_pte internally,
Prior to this commit, pud_pfn was implemented with BUILD_BUG as the inline
function for 64-bit Book3S systems but is never included, as its
invocations in generic code are guarded by calls to pud_devmap which return
zero on such systems. A future patch will provide support for page table
checks,
Support the page table check sanitiser on all PowerPC platforms. This
sanitiser works by serialising assignments, reassignments and clears of
page table entries at each level in order to ensure that anonymous
mappings have at most one writable consumer, and likewise that
file-backed mappings are
The check that a higher-level entry in multi-level pages contains a page
translation entry (pte) is performed by p{m,u,4}d_leaf stubs, which may
be specialised for each choice of mmu. In a prior commit, we replace
uses to the catch-all stubs, p{m,u,4}d_is_leaf with p{m,u,4}d_leaf.
Replace the
pmdp_collapse_flush has references in generic code with just three
parameters, due to the choice of mm context being implied by the vm_area
context parameter.
Define __pmdp_collapse_flush to accept an additional mm_struct *
parameter, with pmdp_collapse_flush an inline function that unpacks
the
Produce separate symbols for set_pte, which is to be used in
arch/powerpc for reassignment of pte's, and set_pte_at, used in generic
code.
The reason for this distinction is to support the Page Table Check
sanitiser. Having this distinction allows for set_pte_at to
instrumented, but set_pte not
Replace occurrences of p{u,m,4}d_is_leaf with p{u,m,4}_leaf, as the
latter is the name given to checking that a higher-level entry in
multi-level paging contains a page translation entry (pte) throughout
all other archs.
A future patch will implement p{u,m,4}_leaf stubs on all platforms so
that
> On 15 Feb 2023, at 11:17 am, Rohan McLure wrote:
>
>> On 14 Feb 2023, at 5:02 pm, Christophe Leroy
>> wrote:
>>
>>
>>
>> Le 14/02/2023 à 02:59, Rohan McLure a écrit :
>>> pmdp_collapse_flush has references in generic code with just three
>>> parameters, due to the choice of mm context
> On 14 Feb 2023, at 5:02 pm, Christophe Leroy
> wrote:
>
>
>
> Le 14/02/2023 à 02:59, Rohan McLure a écrit :
>> pmdp_collapse_flush has references in generic code with just three
>> parameters, due to the choice of mm context being implied by the vm_area
>> context parameter.
>>
>> Define
Bjorn Helgaas wrote:
> On Fri, Feb 10, 2023 at 02:33:23PM -0800, Ira Weiny wrote:
> > The CXL driver expects internal error reporting to be enabled via
> > pci_enable_pcie_error_reporting(). It is likely other drivers expect the
> > same.
> > Dave submitted a patch to enable the CXL side[1] but
On Tue, Feb 7, 2023 at 7:45 PM kajoljain wrote:
>
>
>
> On 2/6/23 10:10, Athira Rajeev wrote:
> >
> >
> >> On 02-Feb-2023, at 10:14 PM, Kajol Jain wrote:
> >>
> >> Testcase stat_all_metrics.sh fails in powerpc:
> >>
> >> 92: perf all metrics test : FAILED!
> >>
> >> Logs with verbose:
> >>
> >>
On Thu, 26 Jan 2023 22:39:30 -0800, Randy Dunlap wrote:
> Correct many spelling errors in Documentation/ as reported by codespell.
>
> Maintainers of specific kernel subsystems are only Cc-ed on their
> respective patches, not the entire series. [if all goes well]
>
> These patches are based on
On Tue, Feb 14, 2023 at 10:39:26AM -0800, Josh Poimboeuf wrote:
> On Tue, Feb 14, 2023 at 11:15:23AM +, Russell King (Oracle) wrote:
> > On Mon, Feb 13, 2023 at 11:05:37PM -0800, Josh Poimboeuf wrote:
> > > arch_cpu_idle_dead() doesn't return. Make that more explicit with a
> > > BUG().
> > >
> >
> > + /* set 64-bit DMA mask and coherent DMA mask */
> > + if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
> > + dev_warn(dev, "Failed to set 64-bit DMA mask.\n");
>
> Isn't this mandatory? Why not dev_err_probe and return the error?
I don't think it is mandatory.
On Tue, Feb 14, 2023 at 11:48:41AM -0800, Max Filippov wrote:
> On Tue, Feb 14, 2023 at 10:23 AM Josh Poimboeuf wrote:
> > On Tue, Feb 14, 2023 at 08:55:32AM +0100, Philippe Mathieu-Daudé wrote:
> > > Can you update the documentation along? Currently we have:
> > >
> > > /*
> > >* Called
On Tue, Feb 14, 2023 at 10:23 AM Josh Poimboeuf wrote:
> On Tue, Feb 14, 2023 at 08:55:32AM +0100, Philippe Mathieu-Daudé wrote:
> > Can you update the documentation along? Currently we have:
> >
> > /*
> >* Called from the idle thread for the CPU which has been shutdown.
> >*
> >*
On Tue, 14 Feb 2023 10:23:22 -0800
Josh Poimboeuf wrote:
> void __ref cpu_die(void)
> {
> idle_task_exit();
> local_irq_disable();
> __asm__ __volatile__(
> " movia2, cpu_restart\n"
> " jx a2\n");
>
>
On Tue, Feb 14, 2023 at 11:15:23AM +, Russell King (Oracle) wrote:
> On Mon, Feb 13, 2023 at 11:05:37PM -0800, Josh Poimboeuf wrote:
> > arch_cpu_idle_dead() doesn't return. Make that more explicit with a
> > BUG().
> >
> > BUG() is preferable to unreachable() because BUG() is a more
On Tue, Feb 14, 2023 at 10:25:50AM +0100, Philippe Mathieu-Daudé wrote:
> On 14/2/23 08:05, Josh Poimboeuf wrote:
> > v2:
> > - make arch_call_rest_init() and rest_init() __noreturn
> > - make objtool 'global_returns' work for weak functions
> > - rebase on tip/objtool/core with dependencies
On Tue, Feb 14, 2023 at 08:57:39AM +0100, Philippe Mathieu-Daudé wrote:
> On 14/2/23 08:05, Josh Poimboeuf wrote:
> > play_dead() doesn't return. Make that more explicit with a BUG().
> >
> > BUG() is preferable to unreachable() because BUG() is a more explicit
> > failure mode and avoids
On Tue, Feb 14, 2023 at 08:55:32AM +0100, Philippe Mathieu-Daudé wrote:
> Hi Josh,
>
> On 14/2/23 08:05, Josh Poimboeuf wrote:
> > cpu_die() doesn't return. Make that more explicit with a BUG().
> >
> > BUG() is preferable to unreachable() because BUG() is a more explicit
> > failure mode and
On Tue, Feb 14, 2023 at 08:46:41AM +0100, Philippe Mathieu-Daudé wrote:
> Hi Josh,
>
> On 14/2/23 08:05, Josh Poimboeuf wrote:
> > Include to make sure play_dead() matches its prototype going
> > forward.
> >
> > Acked-by: Florian Fainelli
> > Signed-off-by: Josh Poimboeuf
> > ---
> >
On Mon, 13 Feb 2023 23:43:03 +0530, Deepak R Varma wrote:
> Variable ret is initialed but is never modified or used except for
> returning the initial value 0. The value can be directly returned
> instead and the variable definition can be dropped.
> Issue identified using returnvar.cocci
On 1/12/23 14:36, Frank Li wrote:
> From: Guanhua Gao
>
> Set DMA mask and coherent DMA mask to enable 64-bit addressing.
>
> Signed-off-by: Guanhua Gao
> Signed-off-by: Hou Zhiqiang
> Signed-off-by: Frank Li
> ---
> drivers/pci/controller/dwc/pci-layerscape-ep.c | 4
> 1 file changed,
> -Original Message-
> From: Frank Li
> Subject: RE: [PATCH 1/1] PCI: layerscape: Add the workaround for A-010305
>
> > Subject: [PATCH 1/1] PCI: layerscape: Add the workaround for A-010305
> >
> > From: Xiaowei Bao
> >
> > When a link down or hot reset event occurs, the PCI Express EP
>
> -Original Message-
> From: Frank Li
> Subject: RE: [PATCH 1/1] PCI: layerscape: Set 64-bit DMA mask
>
>
> > Subject: [PATCH 1/1] PCI: layerscape: Set 64-bit DMA mask
> >
> > From: Guanhua Gao
> >
> > Set DMA mask and coherent DMA mask to enable 64-bit addressing.
> >
> >
On Fri, Jan 27, 2023 at 4:00 PM Suren Baghdasaryan wrote:
>
> On Fri, Jan 27, 2023 at 3:26 PM Matthew Wilcox wrote:
> >
> > On Fri, Jan 27, 2023 at 02:51:38PM -0800, Andrew Morton wrote:
> > > On Fri, 27 Jan 2023 11:40:37 -0800 Suren Baghdasaryan
> > > wrote:
> > >
> > > > Per-vma locks idea
On 13/02/2023 16:40:50, Nathan Lynch wrote:
> Michal Suchánek writes:
>> On Mon, Feb 13, 2023 at 08:46:50AM -0600, Nathan Lynch wrote:
>>> Laurent Dufour writes:
When a new CPU is added, the kernel is activating all its threads. This
leads to weird, but functional, result when adding
On Tue, Feb 14, 2023 at 08:49:03AM +0100, Alexandre Ghiti wrote:
> From: Palmer Dabbelt
>
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
>
> Signed-off-by: Palmer Dabbelt
Acked-by: Catalin Marinas
Hey folks,
On 19/01/23 14:36, Valentin Schneider wrote:
> Patches
> ===
>
> o Patches 1-5 spread out the tracepoint across relevant sites.
> Patch 5 ends up sprinkling lots of #include which I'm
> not
> the biggest fan of, but is the least horrible solution I've been able to
> come
>
On Tue, Feb 14, 2023 at 12:11 AM Alexandre Ghiti wrote:
>
> From: Palmer Dabbelt
>
> Signed-off-by: Palmer Dabbelt
> ---
> arch/xtensa/include/uapi/asm/setup.h | 15 ---
> 1 file changed, 15 deletions(-)
> delete mode 100644 arch/xtensa/include/uapi/asm/setup.h
Acked-by: Max
On Tue, Feb 14, 2023 at 12:01 AM Alexandre Ghiti wrote:
>
> From: Palmer Dabbelt
>
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
>
> Signed-off-by: Palmer Dabbelt
> ---
> arch/xtensa/include/asm/setup.h | 17 +
>
On Mon, Feb 13, 2023 at 11:07 PM Josh Poimboeuf wrote:
>
> cpu_die() doesn't return. Annotate it as such. By extension this also
> makes arch_cpu_idle_dead() noreturn.
>
> Signed-off-by: Josh Poimboeuf
> ---
> arch/xtensa/include/asm/smp.h | 2 +-
> 1 file changed, 1 insertion(+), 1
On Mon, Feb 13, 2023 at 11:05:37PM -0800, Josh Poimboeuf wrote:
> arch_cpu_idle_dead() doesn't return. Make that more explicit with a
> BUG().
>
> BUG() is preferable to unreachable() because BUG() is a more explicit
> failure mode and avoids undefined behavior like falling off the edge of
> the
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
next
branch HEAD: 08273c9f619cb32fb041935724f576e607101f3b powerpc/rtas: arch-wide
function token lookup conversions
elapsed time: 1340m
configs tested: 42
configs skipped: 3
The following configs have been built
On Tue, 2023-02-14 at 16:59 +0800, WANG Xuerui wrote:
> On 2023/2/14 16:50, Sergey Shtylyov wrote:
> > On 2/14/23 10:49 AM, Alexandre Ghiti wrote:
> >
> > > From: Palmer Dabbelt
> > >
> > > As far as I can tell this is not used by userspace and thus should not
> > > be part of the user-visible
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/s390/include/asm/setup.h | 1 -
arch/s390/include/uapi/asm/setup.h | 1 -
2 files changed, 2 deletions(-)
delete mode 100644 arch/s390/include/uapi/asm/setup.h
diff --git a/arch/s390/include/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/mips/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/mips/include/uapi/asm/setup.h
diff --git a/arch/mips/include/uapi/asm/setup.h
b/arch/mips/include/uapi/asm/setup.h
deleted file mode
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/powerpc/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/powerpc/include/uapi/asm/setup.h
diff --git a/arch/powerpc/include/uapi/asm/setup.h
b/arch/powerpc/include/uapi/asm/setup.h
deleted
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/xtensa/include/uapi/asm/setup.h | 15 ---
1 file changed, 15 deletions(-)
delete mode 100644 arch/xtensa/include/uapi/asm/setup.h
diff --git a/arch/xtensa/include/uapi/asm/setup.h
b/arch/xtensa/include/uapi/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/x86/include/asm/setup.h | 2 --
arch/x86/include/uapi/asm/setup.h | 1 -
2 files changed, 3 deletions(-)
delete mode 100644 arch/x86/include/uapi/asm/setup.h
diff --git a/arch/x86/include/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/parisc/include/uapi/asm/setup.h
diff --git a/arch/parisc/include/uapi/asm/setup.h
b/arch/parisc/include/uapi/asm/setup.h
deleted file
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/sparc/include/uapi/asm/setup.h | 9 -
1 file changed, 9 deletions(-)
delete mode 100644 arch/sparc/include/uapi/asm/setup.h
diff --git a/arch/sparc/include/uapi/asm/setup.h
b/arch/sparc/include/uapi/asm/setup.h
deleted file
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/microblaze/include/uapi/asm/setup.h | 18 --
1 file changed, 18 deletions(-)
delete mode 100644 arch/microblaze/include/uapi/asm/setup.h
diff --git a/arch/microblaze/include/uapi/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/arm64/include/uapi/asm/setup.h | 25 -
1 file changed, 25 deletions(-)
delete mode 100644 arch/arm64/include/uapi/asm/setup.h
diff --git a/arch/arm64/include/uapi/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/m68k/include/uapi/asm/setup.h | 15 ---
1 file changed, 15 deletions(-)
delete mode 100644 arch/m68k/include/uapi/asm/setup.h
diff --git a/arch/m68k/include/uapi/asm/setup.h
b/arch/m68k/include/uapi/asm/setup.h
deleted
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/arc/include/asm/setup.h | 1 -
arch/arc/include/uapi/asm/setup.h | 6 --
2 files changed, 7 deletions(-)
delete mode 100644 arch/arc/include/uapi/asm/setup.h
diff --git a/arch/arc/include/asm/setup.h
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/alpha/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/alpha/include/uapi/asm/setup.h
diff --git a/arch/alpha/include/uapi/asm/setup.h
b/arch/alpha/include/uapi/asm/setup.h
deleted file
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API. Since only
contains COMMAND_LINE_SIZE we can just move it out of uapi to hide the
definition and fix up the only direct use in Loongarch.
Signed-off-by: Palmer Dabbelt
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/xtensa/include/asm/setup.h | 17 +
arch/xtensa/include/uapi/asm/setup.h | 2 --
2 files changed, 17
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/sparc/include/asm/setup.h | 6 +-
arch/sparc/include/uapi/asm/setup.h | 7 ---
2 files changed, 5 insertions(+), 8
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/powerpc/include/asm/setup.h | 2 +-
arch/powerpc/include/uapi/asm/setup.h | 2 --
2 files changed, 1 insertion(+), 3
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/asm/setup.h | 7 +++
arch/parisc/include/uapi/asm/setup.h | 2 --
2 files changed, 7 insertions(+), 2
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/mips/include/asm/setup.h | 3 ++-
arch/mips/include/uapi/asm/setup.h | 3 ---
2 files changed, 2 insertions(+), 4
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/microblaze/include/asm/setup.h | 2 +-
arch/microblaze/include/uapi/asm/setup.h | 2 --
2 files changed, 1 insertion(+), 3
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/m68k/include/asm/setup.h | 3 +--
arch/m68k/include/uapi/asm/setup.h | 2 --
2 files changed, 1 insertion(+), 4 deletions(-)
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/ia64/include/asm/setup.h | 10 ++
arch/ia64/include/uapi/asm/setup.h | 6 ++
2 files changed, 12 insertions(+),
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/arm/include/asm/setup.h | 1 +
arch/arm/include/uapi/asm/setup.h | 2 --
2 files changed, 1 insertion(+), 2 deletions(-)
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/arm64/include/asm/setup.h | 3 ++-
arch/arm64/include/uapi/asm/setup.h | 2 --
2 files changed, 2 insertions(+), 3
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/alpha/include/asm/setup.h | 4 ++--
arch/alpha/include/uapi/asm/setup.h | 2 --
2 files changed, 2 insertions(+), 4
This all came up in the context of increasing COMMAND_LINE_SIZE in the
RISC-V port. In theory that's a UABI break, as COMMAND_LINE_SIZE is the
maximum length of /proc/cmdline and userspace could staticly rely on
that to be correct.
Usually I wouldn't mess around with changing this sort of thing,
Hi Matthew,
On 2/7/23 21:27, Matthew Wilcox wrote:
On Thu, Feb 02, 2023 at 09:14:23PM +, Matthew Wilcox wrote:
For those of you not subscribed, linux-mm is currently discussing
how best to handle page faults on large folios. I simply made it work
when adding large folio support. Now Yin
On 2/14/23 10:08, Philippe Mathieu-Daudé wrote:
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/parisc/include/uapi/asm/setup.h
On 2/14/23 10:08, Philippe Mathieu-Daudé wrote:
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/asm/setup.h | 7
On 14/2/23 08:05, Josh Poimboeuf wrote:
v2:
- make arch_call_rest_init() and rest_init() __noreturn
- make objtool 'global_returns' work for weak functions
- rebase on tip/objtool/core with dependencies merged in (mingo)
- add acks
v1.1:
- add __noreturn to all arch_cpu_idle_dead()
On Tue, Feb 14, 2023 at 09:58:17AM +0100, Geert Uytterhoeven wrote:
> Hi Heiko,
>
> On Tue, Feb 14, 2023 at 9:39 AM Heiko Carstens wrote:
> > On Tue, Feb 14, 2023 at 08:49:01AM +0100, Alexandre Ghiti wrote:
> > > This all came up in the context of increasing COMMAND_LINE_SIZE in the
> > > RISC-V
On 2/14/23 11:59 AM, WANG Xuerui wrote:
[...]
>>> From: Palmer Dabbelt
>>>
>>> As far as I can tell this is not used by userspace and thus should not
>>> be part of the user-visible API.
>>>
>>> Signed-off-by: Palmer Dabbelt
>>> ---
>>> arch/sparc/include/asm/setup.h | 6 +-
>>>
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/uapi/asm/setup.h | 5 -
1 file changed, 5 deletions(-)
delete mode 100644 arch/parisc/include/uapi/asm/setup.h
Reviewed-by: Philippe Mathieu-Daudé
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/parisc/include/asm/setup.h | 7 +++
arch/parisc/include/uapi/asm/setup.h |
On 2023/2/14 16:50, Sergey Shtylyov wrote:
On 2/14/23 10:49 AM, Alexandre Ghiti wrote:
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/sparc/include/asm/setup.h | 6
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/alpha/include/asm/setup.h | 4 ++--
arch/alpha/include/uapi/asm/setup.h | 2 --
On Tue, Feb 14, 2023 at 8:55 AM Alexandre Ghiti wrote:
> From: Palmer Dabbelt
>
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
>
> Signed-off-by: Palmer Dabbelt
Acked-by: Geert Uytterhoeven
Gr{oetje,eeting}s,
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Palmer Dabbelt
---
arch/mips/include/asm/setup.h | 3 ++-
arch/mips/include/uapi/asm/setup.h | 3 ---
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/arc/include/asm/setup.h | 1 -
arch/arc/include/uapi/asm/setup.h | 6 --
2 files changed, 7 deletions(-)
delete mode 100644 arch/arc/include/uapi/asm/setup.h
Reviewed-by:
On 2/14/23 10:49 AM, Alexandre Ghiti wrote:
> From: Palmer Dabbelt
>
> As far as I can tell this is not used by userspace and thus should not
> be part of the user-visible API.
>
> Signed-off-by: Palmer Dabbelt
> ---
> arch/sparc/include/asm/setup.h | 6 +-
>
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/s390/include/asm/setup.h | 1 -
arch/s390/include/uapi/asm/setup.h | 1 -
2 files changed, 2 deletions(-)
delete mode 100644 arch/s390/include/uapi/asm/setup.h
Reviewed-by:
On 14/2/23 08:49, Alexandre Ghiti wrote:
From: Palmer Dabbelt
Signed-off-by: Palmer Dabbelt
---
arch/x86/include/asm/setup.h | 2 --
arch/x86/include/uapi/asm/setup.h | 1 -
2 files changed, 3 deletions(-)
delete mode 100644 arch/x86/include/uapi/asm/setup.h
Reviewed-by: Philippe
On Tue, Feb 14, 2023 at 9:05 AM Alexandre Ghiti wrote:
> From: Palmer Dabbelt
>
> Signed-off-by: Palmer Dabbelt
Acked-by: Geert Uytterhoeven
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org
In personal
Hi Heiko,
On Tue, Feb 14, 2023 at 9:39 AM Heiko Carstens wrote:
> On Tue, Feb 14, 2023 at 08:49:01AM +0100, Alexandre Ghiti wrote:
> > This all came up in the context of increasing COMMAND_LINE_SIZE in the
> > RISC-V port. In theory that's a UABI break, as COMMAND_LINE_SIZE is the
> > maximum
On Tue, Feb 14, 2023 at 08:49:01AM +0100, Alexandre Ghiti wrote:
> This all came up in the context of increasing COMMAND_LINE_SIZE in the
> RISC-V port. In theory that's a UABI break, as COMMAND_LINE_SIZE is the
> maximum length of /proc/cmdline and userspace could staticly rely on
> that to be
On Tue, Feb 14, 2023 at 08:49:25AM +0100, Alexandre Ghiti wrote:
> From: Palmer Dabbelt
>
> Signed-off-by: Palmer Dabbelt
> ---
> arch/s390/include/asm/setup.h | 1 -
> arch/s390/include/uapi/asm/setup.h | 1 -
> 2 files changed, 2 deletions(-)
> delete mode 100644
On 14/2/23 08:05, Josh Poimboeuf wrote:
cpu_die() doesn't return. Annotate it as such. By extension this also
makes arch_cpu_idle_dead() noreturn.
Signed-off-by: Josh Poimboeuf
---
arch/arm64/include/asm/smp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
On 14/2/23 08:05, Josh Poimboeuf wrote:
play_dead() doesn't return. Annotate it as such. By extension this
also makes arch_cpu_idle_dead() noreturn.
Signed-off-by: Josh Poimboeuf
---
arch/ia64/kernel/process.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by:
On 14/2/23 08:05, Josh Poimboeuf wrote:
play_dead() doesn't return. Annotate it as such. By extension this
also makes arch_cpu_idle_dead() noreturn.
Signed-off-by: Josh Poimboeuf
---
arch/loongarch/include/asm/smp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by:
On 14/2/23 08:05, Josh Poimboeuf wrote:
After commit 076cbf5d2163 ("x86/xen: don't let xen_pv_play_dead()
return"), play_dead() never returns. Make that more explicit with a
BUG().
BUG() is preferable to unreachable() because BUG() is a more explicit
failure mode and avoids undefined behavior
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