Re: [PATCH V6 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms

On Wed, Jul 6, 2022 at 8:33 AM Christophe Leroy wrote: > As far as I can see in Kconfig, CONFIG_MMU is user selectable on the > following architectures: > - ARM > - M68K > - RISCV > - SH > > And is disabled by default on XTENSA. Right, the list is complete, though it's also default-enabled for e

Re: [PATCH V6 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms

On 7/6/22 12:34, Arnd Bergmann wrote: > On Wed, Jul 6, 2022 at 8:33 AM Christophe Leroy > wrote: > >> As far as I can see in Kconfig, CONFIG_MMU is user selectable on the >> following architectures: >> - ARM >> - M68K >> - RISCV >> - SH >> >> And is disabled by default on XTENSA. > > Right, t

Re: [PATCH v2 2/3] m68k: bitops: Change __fls to return and accept unsigned long

On Fri, May 27, 2022 at 1:53 PM Amadeusz Sławiński wrote: > As per asm-generic definition and other architectures __fls should > return and accept unsigned long as its parameter. > > No functional change is expected as return value should fit in unsigned > long. > > Reviewed-by: Cezary Rojewski >

Re: [PATCH 19/36] objtool/idle: Validate __cpuidle code as noinstr

On Wed, Jun 8, 2022 at 4:46 PM Peter Zijlstra wrote: > Idle code is very like entry code in that RCU isn't available. As > such, add a little validation. > > Signed-off-by: Peter Zijlstra (Intel) > arch/m68k/kernel/vmlinux-nommu.lds |1 - > arch/m68k/kernel/vmlinux-std.lds |1 - >

Re: [PATCH V6 21/26] m68k/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT

Hi Anshuman, On Thu, Jun 30, 2022 at 7:19 AM Anshuman Khandual wrote: > This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard > vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks > up a private and static protection_map[] array. Subsequently all __SX

Re: [PATCH V6 26/26] mm/mmap: Drop ARCH_HAS_VM_GET_PAGE_PROT

On Thu, Jun 30, 2022 at 7:20 AM Anshuman Khandual wrote: > Now all the platforms enable ARCH_HAS_GET_PAGE_PROT. They define and export > own vm_get_page_prot() whether custom or standard DECLARE_VM_GET_PAGE_PROT. > Hence there is no need for default generic fallback for vm_get_page_prot(). > Just

Re: [PATCH V6 21/26] m68k/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT

On 7/6/22 15:33, Geert Uytterhoeven wrote: > Hi Anshuman, > > On Thu, Jun 30, 2022 at 7:19 AM Anshuman Khandual > wrote: >> This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard >> vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks >> up a private

Re: [PATCH 03/36] cpuidle/poll: Ensure IRQ state is invariant

On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > cpuidle_state::enter() methods should be IRQ invariant > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Rafael J. Wysocki > --- > drivers/cpuidle/poll_state.c |4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > --- a

Re: [PATCH 05/36] cpuidle: Move IRQ state validation

On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > Make cpuidle_enter_state() consistent with the s2idle variant and > verify ->enter() always returns with interrupts disabled. > > Signed-off-by: Peter Zijlstra (Intel) > --- > drivers/cpuidle/cpuidle.c | 10 +- > 1 file changed,

Re: [PATCH 17/36] acpi_idle: Remove tracing

On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > All the idle routines are called with RCU disabled, as such there must > not be any tracing inside. > > Signed-off-by: Peter Zijlstra (Intel) This actually does some additional code duplication cleanup which would be good to mention in the

Re: [PATCH 18/36] cpuidle: Annotate poll_idle()

On Wed, Jun 8, 2022 at 4:46 PM Peter Zijlstra wrote: > > The __cpuidle functions will become a noinstr class, as such they need > explicit annotations. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Rafael J. Wysocki > --- > drivers/cpuidle/poll_state.c |6 +- > 1 file changed

Re: [PATCH 20/36] arch/idle: Change arch_cpu_idle() IRQ behaviour

On Wed, Jun 8, 2022 at 4:46 PM Peter Zijlstra wrote: > > Current arch_cpu_idle() is called with IRQs disabled, but will return > with IRQs enabled. > > However, the very first thing the generic code does after calling > arch_cpu_idle() is raw_local_irq_disable(). This means that > architectures th

Re: [PATCH 31/36] cpuidle,acpi: Make noinstr clean

On Wed, Jun 8, 2022 at 4:47 PM Peter Zijlstra wrote: > > vmlinux.o: warning: objtool: io_idle+0xc: call to __inb.isra.0() leaves > .noinstr.text section > vmlinux.o: warning: objtool: acpi_idle_enter+0xfe: call to num_online_cpus() > leaves .noinstr.text section > vmlinux.o: warning: objtool: ac

Re: [linux-next:master] BUILD REGRESSION 2a2aa3f05338270aecbe2492fda910d6c17e0102

On 7/5/22 23:49, Dan Carpenter wrote: [ trimmed massive CC list (see below) ] What's going on with all the arch/arc build breakage on linux-next? regards, dan carpenter To: kernel test robot Cc: Andrew Morton , virtualizat...@lists.linux-foundation.org, usbb2k-api-...@nongn