On Wed, Sep 09, 2020 at 07:36:04PM +1000, Alexey Kardashevskiy wrote:
> I want dma_get_required_mask() to return the bigger mask always.
>
> Now it depends on (in dma_alloc_direct()):
> 1. dev->dma_ops_bypass: set via pci_set_(coherent_)dma_mask();
> 2. dev->coherent_dma_mask - the same;
> 3. dev-
While running LTP tests (specifically mlock201) against next-20200914 tree
on a POWER9 LPAR results in following crash.
BUG: Kernel NULL pointer dereference on read at 0x
Faulting instruction address: 0xc0454248
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU
Excerpts from David Miller's message of September 15, 2020 5:59 am:
> From: Nicholas Piggin
> Date: Mon, 14 Sep 2020 14:52:18 +1000
>
> ...
>> The basic fix for sparc64 is to remove its mm_cpumask clearing code. The
>> optimisation could be effectively restored by sending IPIs to mm_cpumask
>> m
Excerpts from Anatoly Pugachev's message of September 14, 2020 8:23 pm:
> On Mon, Sep 14, 2020 at 10:00 AM Nicholas Piggin wrote:
>>
>> Excerpts from Nicholas Piggin's message of September 14, 2020 2:52 pm:
>>
>> [...]
>>
>> > The basic fix for sparc64 is to remove its mm_cpumask clearing code. Th
Excerpts from pet...@infradead.org's message of September 14, 2020 8:56 pm:
> On Mon, Sep 14, 2020 at 02:52:16PM +1000, Nicholas Piggin wrote:
>> Reading and modifying current->mm and current->active_mm and switching
>> mm should be done with irqs off, to prevent races seeing an intermediate
>> sta
On Sun, Sep 06, 2020 at 12:06:12AM +0200, Christian Lamparter wrote:
> This patch adds an DTSI-File that can be used by various device-tree
> files for APM82181-based devices.
>
> Some of the nodes (like UART, PCIE, SATA) are used by the uboot and
> need to stick with the naming-conventions of the
On Sun, Sep 06, 2020 at 12:06:11AM +0200, Christian Lamparter wrote:
> make a binding for the various boards based on the
> AppliedMicro/APM APM82181 SoC.
>
> Signed-off-by: Christian Lamparter
> ---
> .../bindings/powerpc/4xx/apm,apm82181.yaml| 29 +++
> 1 file changed, 29 i
Update supporters for IBM Power SRIOV Virtual NIC Device Driver.
Thomas Falcon is moving on to other works. Dany Madden, Lijun Pan
and Sukadev Bhattiprolu are the current supporters.
Signed-off-by: Dany Madden
---
MAINTAINERS | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
From: Viorel Suman
"alsactl -f state.conf store/restore" sequence fails because setting
"mixing clock source" and "output source" requires active TDM clock
being started for configuration propagation. Make these two controls
write only so that their values are not stored at "alsactl store".
Sign
This fixes a compile error with W=1.
CC arch/powerpc/kernel/traps.o
../arch/powerpc/kernel/traps.c:1663:6: error: no previous prototype for
‘stack_overflow_exception’ [-Werror=missing-prototypes]
void stack_overflow_exception(struct pt_regs *regs)
^~~~
Cc: Christo
This fixes a compile error with W=1.
CC arch/powerpc/perf/imc-pmu.o
../arch/powerpc/perf/imc-pmu.c: In function ‘trace_imc_event_init’:
../arch/powerpc/perf/imc-pmu.c:1429:22: error: variable ‘target’ set but not
used [-Werror=unused-but-set-variable]
struct task_struct *target;
This fixes a compile error with W=1.
arch/powerpc/kernel/sysfs.c: In function ‘sysfs_create_dscr_default’:
arch/powerpc/kernel/sysfs.c:228:7: error: variable ‘err’ set but not used
[-Werror=unused-but-set-variable]
int err = 0;
^~~
cc1: all warnings being treated as errors
Cc: Madhavan
This fixes a compile error with W=1.
CC arch/powerpc/platforms/powernv/pci-ioda.o
../arch/powerpc/platforms/powernv/pci-ioda.c: In function
‘pnv_ioda_configure_pe’:
../arch/powerpc/platforms/powernv/pci-ioda.c:897:18: error: variable ‘parent’
set but not used [-Werror=unused-but-set-variabl
The check should be performed by the caller. This fixes a compile
error with W=1.
../arch/powerpc/lib/sstep.c: In function ‘mlsd_8lsd_ea’:
../arch/powerpc/lib/sstep.c:225:3: error: suggest braces around empty body in
an ‘if’ statement [-Werror=empty-body]
; /* Invalid form. Should already be c
and condition its call with IS_ENABLED(CONFIG_PPC32). This fixes a
compile error with W=1.
arch/powerpc/kernel/prom.c: In function ‘early_reserve_mem’:
arch/powerpc/kernel/prom.c:625:10: error: variable ‘reserve_map’ set but not
used [-Werror=unused-but-set-variable]
__be64 *reserve_map;
Hello,
Here is a small contribution improving compile with W=1.
Thanks,
C.
Changes in v2:
- Better commit logs
- Reworked early_reserve_mem() in prom
- Remove if statement in sstep
Cédric Le Goater (7):
powerpc/sysfs: Remove unused 'err' variable in
sysfs_create_dscr_default(
This fixes a compile error with W=1.
CC arch/powerpc/sysdev/xive/common.o
../arch/powerpc/sysdev/xive/common.c:1568:6: error: no previous prototype for
‘xive_debug_show_cpu’ [-Werror=missing-prototypes]
void xive_debug_show_cpu(struct seq_file *m, int cpu)
^~~
../arch/
On Mon, Sep 14, 2020 at 10:15:18PM +1000, Michael Ellerman wrote:
> Kees Cook writes:
> > Hi,
> >
> > This refactors the seccomp selftest macros used in change_syscall(),
> > in an effort to remove special cases for mips, arm, arm64, and xtensa,
> > which paves the way for powerpc fixes.
> >
> > I
On Mon, Sep 14, 2020 at 03:47:13PM +1000, Michael Ellerman wrote:
> Kees Cook writes:
> > Some archs (like ppc) only support changing the return code during
> > syscall exit when ptrace is used. As the syscall number might not
> > be available anymore during syscall exit, it needs to be saved
> >
From: Nicholas Piggin
Date: Mon, 14 Sep 2020 14:52:18 +1000
...
> The basic fix for sparc64 is to remove its mm_cpumask clearing code. The
> optimisation could be effectively restored by sending IPIs to mm_cpumask
> members and having them remove themselves from mm_cpumask. This is more
> tricky
On Sat, Sep 12, 2020 at 01:44:51PM +0530, Vaibhav Jain wrote:
> A warning is reported by the kernel in case perf_stats_show() returns
> an error code. The warning is of the form below:
>
> papr_scm ibm,persistent-memory:ibm,pmemory@4411:
> Failed to query performance stats, Err:-10
>
Make kernel with `C=2`:
drivers/macintosh/smu.c:1018:30: warning: symbol
'__smu_get_sdb_partition' was not declared. Should it be static?
Reported-by: Hulk Robot
Signed-off-by: Wang Wensheng
---
drivers/macintosh/smu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/
On Mon, Sep 14, 2020 at 10:00 AM Nicholas Piggin wrote:
>
> Excerpts from Nicholas Piggin's message of September 14, 2020 2:52 pm:
>
> [...]
>
> > The basic fix for sparc64 is to remove its mm_cpumask clearing code. The
> > optimisation could be effectively restored by sending IPIs to mm_cpumask
>
On Fri, Sep 11, 2020 at 11:23:57PM +1000, Michael Ellerman wrote:
> Michal Suchánek writes:
> > Hello,
> >
> > does this logic apply to "Unrecoverable System Reset" as well?
>
> Which logic do you mean?
>
> We do call die() before checking MSR_RI in system_reset_exception():
>
> /*
>
Kees Cook writes:
> Hi,
>
> This refactors the seccomp selftest macros used in change_syscall(),
> in an effort to remove special cases for mips, arm, arm64, and xtensa,
> which paves the way for powerpc fixes.
>
> I'm not entirely done testing, but all-arch build tests and x86_64
> selftests pass
On Mon, Sep 14, 2020 at 02:52:16PM +1000, Nicholas Piggin wrote:
> Reading and modifying current->mm and current->active_mm and switching
> mm should be done with irqs off, to prevent races seeing an intermediate
> state.
>
> This is similar to commit 38cf307c1f20 ("mm: fix kthread_use_mm() vs TLB
On Mon, 2020-09-14 at 12:28 +1000, Nicholas Piggin wrote:
> CAUTION: This email originated from outside of the organization. Do not click
> links or open attachments unless you recognize the sender and know the
> content is safe.
>
>
> Excerpts from Chris Packham's message of September 14, 2020
On 21. 08. 20, 1:46, Tyrel Datwyler wrote:
> The code currently NULLs tty->driver_data in hvcs_close() with the
> intent of informing the next call to hvcs_open() that device needs to be
> reconfigured. However, when hvcs_cleanup() is called we copy hvcsd from
> tty->driver_data which was previouls
On 12. 09. 20, 5:38, Jason Yan wrote:
> This eliminates the following sparse warning:
>
> drivers/tty/serial/ucc_uart.c:286:6: warning: symbol 'qe_uart_set_mctrl'
> was not declared. Should it be static?
>
> Reported-by: Hulk Robot
> Signed-off-by: Jason Yan
Sure:
Acked-by: Jiri Slaby
> ---
Excerpts from Nicholas Piggin's message of September 14, 2020 2:52 pm:
[...]
> The basic fix for sparc64 is to remove its mm_cpumask clearing code. The
> optimisation could be effectively restored by sending IPIs to mm_cpumask
> members and having them remove themselves from mm_cpumask. This is m
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