| Age | Commit message (Collapse) | Author | Files | Lines |
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This options is used to reserve a shared memory region for user processes
to use for hardware memory buffers. The actual code to support the option
comes in the following patch.
Signed-off-by: Corey Minyard <[email protected]>
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Rearrange kernel-doc notation for 2 functions to eliminate
kernel-doc warnings. Use Return: notation for the function
return value description. Add function short descriptions
for both functions.
Correct 2 typos.
Fixes these kernel-doc warnings:
msi-octeon.c:49: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Called when a driver request MSI interrupts instead of the
msi-octeon.c:49: warning: missing initial short description on line:
* Called when a driver request MSI interrupts instead of the
msi-octeon.c:62: warning: No description found for return value of 'arch_setup_msi_irq'
msi-octeon.c:189: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Called when a device no longer needs its MSI interrupts. All
msi-octeon.c:189: warning: missing initial short description on line:
* Called when a device no longer needs its MSI interrupts. All
Fixes: e8635b484f64 ("MIPS: Add Cavium OCTEON PCI support.")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Aditya Srivastava <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: [email protected]
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Fix the typo `s/that that/than that/' in line 72.
Signed-off-by: Jason Wang <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Move mt_init out of the way for the maple tree. Use mips_mt prefix to
match the rest of the functions in the file.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Liam R. Howlett <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: David Howells <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: SeongJae Park <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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The isa_dma_bridge_buggy symbol is only used for x86_32, and only x86_32
platforms or quirks ever set it.
Add a new linux/isa-dma.h header that #defines isa_dma_bridge_buggy to 0
except on x86_32, where we keep it as a variable, and remove all the arch-
specific definitions.
[bhelgaas: commit log]
Suggested-by: Arnd Bergmann <[email protected]>
Suggested-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stafford Horne <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
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pci_get_legacy_ide_irq() is only used on platforms that support PNP, so
many architectures define it but never use it. Replace uses of it with
ATA_PRIMARY_IRQ() and ATA_SECONDARY_IRQ(), which provide the same
functionality.
Since pci_get_legacy_ide_irq() is no longer used, remove all the
architecture-specific definitions of it as well as asm-generic/pci.h, which
only provides pci_get_legacy_ide_irq()
[bhelgaas: commit log]
Co-developed-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Stafford Horne <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Pierre Morel <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
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* irq/loongarch:
: .
: Merge the long awaited IRQ support for the LoongArch architecture.
:
: From the cover letter:
:
: "Currently, LoongArch based processors (e.g. Loongson-3A5000)
: can only work together with LS7A chipsets. The irq chips in
: LoongArch computers include CPUINTC (CPU Core Interrupt
: Controller), LIOINTC (Legacy I/O Interrupt Controller),
: EIOINTC (Extended I/O Interrupt Controller), PCH-PIC (Main
: Interrupt Controller in LS7A chipset), PCH-LPC (LPC Interrupt
: Controller in LS7A chipset) and PCH-MSI (MSI Interrupt Controller)."
:
: Note that this comes with non-official, arch private ACPICA
: definitions until the official ACPICA update is realeased.
: .
irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch
irqchip: Add LoongArch CPU interrupt controller support
irqchip: Add Loongson Extended I/O interrupt controller support
irqchip/loongson-liointc: Add ACPI init support
irqchip/loongson-pch-msi: Add ACPI init support
irqchip/loongson-pch-pic: Add ACPI init support
irqchip: Add Loongson PCH LPC controller support
LoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain
LoongArch: Use ACPI_GENERIC_GSI for gsi handling
genirq/generic_chip: Export irq_unmap_generic_chip
ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback
APCI: irq: Add support for multiple GSI domains
LoongArch: Provisionally add ACPICA data structures
Signed-off-by: Marc Zyngier <[email protected]>
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LIOINTC stands for "Legacy I/O Interrupts" that described in Section
11.1 of "Loongson 3A5000 Processor Reference Manual". For more
information please refer Documentation/loongarch/irq-chip-model.rst.
Co-developed-by: Jianmin Lv <[email protected]>
Signed-off-by: Jianmin Lv <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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PCH-PIC/PCH-MSI stands for "Interrupt Controller" that described in
Section 5 of "Loongson 7A1000 Bridge User Manual". For more information
please refer Documentation/loongarch/irq-chip-model.rst.
Co-developed-by: Jianmin Lv <[email protected]>
Signed-off-by: Jianmin Lv <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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This is the order of the page table allocation, not the order of a PGD.
While at it remove unused defintion of _PGD_ORDER in asm-offsets.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Xuerui Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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This is the order of the page table allocation, not the order of a PTE.
Since its always hardwired to 0, simply drop it.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Xuerui Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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This is the order of the page table allocation, not the order of a PUD.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: "Matthew Wilcox (Oracle)" <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Xuerui Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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This is the order of the page table allocation, not the order of a PMD.
While at it remove unused defintion of _PMD_ORDER in asm-offsets.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Xuerui Wang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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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 drop this fallback and also
ARCH_HAS_GET_PAGE_PROT mechanism.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Christophe Leroy <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Jonas Bonn <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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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 __SXXX and __PXXX macros can be dropped which are no longer needed.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Jonas Bonn <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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If we were not specified a correct DTB, we will not be able to print
anything useful with panic() which requires a working console of some
sort. Utilize cfe_die() to callback into the CFE default UART and print
some useful diagnostics.
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Add a cfe_die() implementation which is useful when the kernel does an
early panic and no console is registered. This allows us to print
useful diagnostics such as an invalid DTB having been
configured/selected.
Since the BMIPS_GENERIC kernel can be built with support for multiple
processors, we need to do a runtime determination of the type of CPU
that we are executing on to perform the appropriate XKS01 disabling.
Since cfe_init() + cfe_die() could be conceivably called at very early
stages of the kernel boot, before cpu_probe(), we do not rely on the
structure(s) populated by cpu_probe().
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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It is permissible for kernel code to call virt_to_phys() against virtual
addresses that are in KSEG0 or KSEG1 and we need to be dealing with both
types. Rewrite the test condition to ensure that the kernel virtual
addresses are above PAGE_OFFSET which they must be, and below KSEG2
where the non-linear mapping starts.
For EVA, there is not much that we can do given the linear address range
that is offered, so just return any virtual address as being valid.
Finally, when HIGHMEM is not enabled, all virtual addresses are assumed
to be valid as well.
Fixes: dfad83cb7193 ("MIPS: Add support for CONFIG_DEBUG_VIRTUAL")
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Serge Semin <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Add support for the Netgear WNR3500L v2 router based on the BCM47186
chipset and supporting 802.11n Wi-Fi.
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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No (active) developer owns this hardware, so let's remove Linux support.
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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The node names should be generic and DT schema expects certain pattern
(e.g. with key/button/switch).
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Arınç ÜNAL <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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gpio-keys children do not use unit addresses.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Arınç ÜNAL <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected,
cpu_max_bits_warn() generates a runtime warning similar as below while
we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.
[ 3.052463] ------------[ cut here ]------------
[ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[ 3.070072] Modules linked in: efivarfs autofs4
[ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[ 3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27
[ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000
[ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[ 3.195868] ...
[ 3.199917] Call Trace:
[ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c
[ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88
[ 3.217625] [<980000000023d268>] __warn+0xd0/0x100
[ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc
[ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0
[ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4
[ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4
[ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0
[ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100
[ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94
[ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160
[ 3.281824] ---[ end trace 8b484262b4b8c24c ]---
Cc: [email protected]
Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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The implementation is exactly the same, so avoid open-coding it in two
different locations.
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Serge Semin <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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The GIC user offset is mapped into every process' virtual address and is
therefore part of the hot-path of arch_setup_additional_pages(). Utilize
__pa() such that we are more optimal even when CONFIG_DEBUG_VIRTUAL is
enabled, and while at it utilize PFN_DOWN() instead of open-coding the
right shift by PAGE_SHIFT.
Reported-by: Greg Ungerer <[email protected]>
Suggested-by: Serge Semin <[email protected]>
Fixes: dfad83cb7193 ("MIPS: Add support for CONFIG_DEBUG_VIRTUAL")
Signed-off-by: Florian Fainelli <[email protected]>
Acked-by: Greg Ungerer <[email protected]>
Tested-by: Greg Ungerer <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Use bitmap_zalloc() instead of hand-writing them.
It is less verbose and it improves the semantic.
While at it, turn a bitmap_clear() into an equivalent bitmap_zero(). It is
also less verbose.
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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prom_putchar_wait() inputs both mask and val but the callers always set
them to the same value. Thus pass only val.
Suggested-by: Jiri Slaby <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Now that the irq_data_update_affinity helper exists, enforce its use
by returning a a const cpumask from irq_data_get_affinity_mask.
Since the previous commit already updated places that needed to call
irq_data_update_affinity, this commit updates the remaining code that
either did not modify the cpumask or immediately passed the modified
mask to irq_set_affinity.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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prom_init_numa_memory() is annotated __init and not used by any module,
thus don't export it.
Remove not needed EXPORT_SYMBOL for prom_init_numa_memory() to fix the
following section mismatch warning:
LD vmlinux.o
MODPOST vmlinux.symvers
WARNING: modpost: vmlinux.o(___ksymtab+prom_init_numa_memory+0x0): Section mismatch in reference
from the variable __ksymtab_prom_init_numa_memory to the function .init.text:prom_init_numa_memory()
The symbol prom_init_numa_memory is exported and annotated __init
Fix this by removing the __init annotation of prom_init_numa_memory or drop the export.
This is build on Linux 5.19-rc4.
Fixes: 6fbde6b492df ("MIPS: Loongson64: Move files to the top-level directory")
Signed-off-by: Tiezhu Yang <[email protected]>
Reviewed-by: Huacai Chen <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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We should call of_node_put() for the reference 'uctl_node' returned by
of_get_parent() which will increase the refcount. Otherwise, there will
be a refcount leak bug.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Enable FDMA usage by adding "fdma" resource in regs and interrupts.
Signed-off-by: Alexandre Belloni <[email protected]>
Signed-off-by: Clément Léger <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Change 'modifed' to 'modified'.
Change 'relys' to 'relies'.
Signed-off-by: Zhang Jiaming <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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file: ./arch/mips/alchemy/devboards/pm.c
line: 20
* sources and configure the timeout after which the the TOYMATCH2 irq
changed to
* sources and configure the timeout after which the TOYMATCH2 irq
Signed-off-by: Jiang Jian <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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There is an info message with an extraneous leading space. Remove it.
Also rename pci to PCI.
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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The remove callback is only called by the driver core if there is a
driver to unbind, so there is no need to check dev->driver to be
non-NULL.
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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Context tracking is going to be used not only to track user transitions
but also idle/IRQs/NMIs. The user tracking part will then become a
separate feature. Prepare Kconfig for that.
[ frederic: Apply Max Filippov feedback. ]
Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Neeraj Upadhyay <[email protected]>
Cc: Uladzislau Rezki <[email protected]>
Cc: Joel Fernandes <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Nicolas Saenz Julienne <[email protected]>
Cc: Marcelo Tosatti <[email protected]>
Cc: Xiongfeng Wang <[email protected]>
Cc: Yu Liao <[email protected]>
Cc: Phil Auld <[email protected]>
Cc: Paul Gortmaker<[email protected]>
Cc: Alex Belits <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Reviewed-by: Nicolas Saenz Julienne <[email protected]>
Tested-by: Nicolas Saenz Julienne <[email protected]>
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There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].
This code was transformed with the help of Coccinelle:
(linux-5.19-rc2$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch)
@@
identifier S, member, array;
type T1, T2;
@@
struct S {
...
T1 member;
T2 array[
- 0
];
};
-fstrict-flex-arrays=3 is coming and we need to land these changes
to prevent issues like these in the short future:
../fs/minix/dir.c:337:3: warning: 'strcpy' will always overflow; destination buffer has size 0,
but the source string has length 2 (including NUL byte) [-Wfortify-source]
strcpy(de3->name, ".");
^
Since these are all [0] to [] changes, the risk to UAPI is nearly zero. If
this breaks anything, we can use a union with a new member name.
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/78
Build-tested-by: kernel test robot <[email protected]>
Link: https://lore.kernel.org/lkml/62b675ec.wKX6AOZ6cbE71vtF%[email protected]/
Acked-by: Dan Williams <[email protected]> # For ndctl.h
Signed-off-by: Gustavo A. R. Silva <[email protected]>
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All architecture-independent users of virt_to_bus() and bus_to_virt()
have been fixed to use the dma mapping interfaces or have been
removed now. This means the definitions on most architectures, and the
CONFIG_VIRT_TO_BUS symbol are now obsolete and can be removed.
The only exceptions to this are a few network and scsi drivers for m68k
Amiga and VME machines and ppc32 Macintosh. These drivers work correctly
with the old interfaces and are probably not worth changing.
On alpha and parisc, virt_to_bus() were still used in asm/floppy.h.
alpha can use isa_virt_to_bus() like x86 does, and parisc can just
open-code the virt_to_phys() here, as this is architecture specific
code.
I tried updating the bus-virt-phys-mapping.rst documentation, which
started as an email from Linus to explain some details of the Linux-2.0
driver interfaces. The bits about virt_to_bus() were declared obsolete
backin 2000, and the rest is not all that relevant any more, so in the
end I just decided to remove the file completely.
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Michael Ellerman <[email protected]> (powerpc)
Acked-by: Helge Deller <[email protected]> # parisc
Signed-off-by: Arnd Bergmann <[email protected]>
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Per file BOTH_EMPTY defines are littering our source code here and
there. Define once in serial.h and create helper for the check
too.
Reviewed-by: Jiri Slaby <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Instead of defaulting to patching NOP opcodes at init time, and leaving
it to the architectures to override this if this is not needed, switch
to a model where doing nothing is the default. This is the common case
by far, as only MIPS requires NOP patching at init time. On all other
architectures, the correct encodings are emitted by the compiler and so
no initial patching is needed.
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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MIPS is the only remaining architecture that needs to patch jump label
NOP encodings to initialize them at load time. So let's move the module
patching part of that from generic code into arch/mips, and drop it from
the others.
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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In icu_of_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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This clock is a gate for the TCU hardware block on these SoCs, but
it wasn't included in the device tree since the ingenic-tcu driver
erroneously did not request it.
Reviewed-by: Paul Cercueil <[email protected]>
Signed-off-by: Aidan MacDonald <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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of_find_matching_node(), of_find_compatible_node() and
of_find_node_by_path() will return node pointers with refcout
incremented. We should call of_node_put() when they are not
used anymore.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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In ltq_soc_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put() when
it is not used anymore.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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In ltq_soc_init(), of_find_compatible_node() will return a node pointer
with refcount incremented. We should use of_node_put() when it is not
used anymore.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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In plat_of_remap_node(), plat_of_remap_node() will return a node
pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.
Signed-off-by: Liang He <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
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