Hi Linus,
Here are the main MIPS changes for 4.19.
We still have build failures when targeting the microMIPS ISA, but
that's been true since v4.16-rc3 & the fix caused an ia64 build failure
in -next, so it's not included here. Hopefully I'll be sending that your
way sometime soon.
A trial merge of this into v4.18 results in one minor conflict due to
the addition of 2 different header inclusions in
arch/mips/kernel/process.c. The correct resolution is simply to keep
both:
diff --cc arch/mips/kernel/process.c
index 9670e70139fd,fe6001d748cf..b3d3b397fb12
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@@ -29,7 -29,7 +29,8 @@@
#include <linux/kallsyms.h>
#include <linux/random.h>
#include <linux/prctl.h>
+ #include <linux/cpu.h>
+#include <linux/nmi.h>
#include <asm/asm.h>
#include <asm/bootinfo.h>
Please pull.
Thanks,
Paul
The following changes since commit 7daf201d7fe8334e2d2364d4e8ed3394ec9af819:
Linux 4.18-rc2 (2018-06-24 20:54:29 +0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git tags/mips_4.19
for you to fetch changes up to 22f20a110321efb7cde3e87ae99862e1036ca285:
MIPS: Remove remnants of UASM_ISA (2018-08-09 14:45:00 -0700)
----------------------------------------------------------------
Here are the main MIPS changes for 4.19.
An overview of the general architecture changes:
- Massive DMA ops refactoring from Christoph Hellwig (huzzah for
deleting crufty code!).
- We introduce NT_MIPS_DSP & NT_MIPS_FP_MODE ELF notes & corresponding
regsets to expose DSP ASE & floating point mode state respectively,
both for live debugging & core dumps.
- We better optimize our code by hard-coding cpu_has_* macros at
compile time where their values are known due to the ISA revision
that the kernel build is targeting.
- The EJTAG exception handler now better handles SMP systems, where it
was previously possible for CPUs to clobber a register value saved
by another CPU.
- Our implementation of memset() gained a couple of fixes for MIPSr6
systems to return correct values in some cases where stores fault.
- We now implement ioremap_wc() using the uncached-accelerated cache
coherency attribute where supported, which is detected during boot,
and fall back to plain uncached access where necessary. The
MIPS-specific (and unused in tree) ioremap_uncached_accelerated() &
ioremap_cacheable_cow() are removed.
- The prctl(PR_SET_FP_MODE, ...) syscall is better supported for SMP
systems by reworking the way we ensure remote CPUs that may be
running threads within the affected process switch mode.
- Systems using the MIPS Coherence Manager will now set the
MIPS_IC_SNOOPS_REMOTE flag to avoid some unnecessary cache
maintenance overhead when flushing the icache.
- A few fixes were made for building with clang/LLVM, which
now sucessfully builds kernels for many of our platforms.
- Miscellaneous cleanups all over.
And some platform-specific changes:
- ar7 gained stubs for a few clock API functions to fix build failures
for some drivers.
- ath79 gained support for a few new SoCs, a few fixes & better
gpio-keys support.
- Ci20 now exposes its SPI bus using the spi-gpio driver.
- The generic platform can now auto-detect a suitable value for
PHYS_OFFSET based upon the memory map described by the device tree,
allowing us to avoid wasting memory on page book-keeping for systems
where RAM starts at a non-zero physical address.
- Ingenic systems using the jz4740 platform code now link their
vmlinuz higher to allow for kernels of a realistic size.
- Loongson32 now builds the kernel targeting MIPSr1 rather than MIPSr2
to avoid CPU errata.
- Loongson64 gains a couple of fixes, a workaround for a write
buffering issue & support for the Loongson 3A R3.1 CPU.
- Malta now uses the piix4-poweroff driver to handle powering down.
- Microsemi Ocelot gained support for its SPI bus & NOR flash, its
second MDIO bus and can now be supported by a FIT/.itb image.
- Octeon saw a bunch of header cleanups which remove a lot of
duplicate or unused code.
----------------------------------------------------------------
Alban Bedel (2):
MIPS: ath79: Fix the USB PHY reset names
MIPS: ath79: Use the IRQ based GPIO key driver for the buttons
Alexander Sverdlin (3):
mips: unify prom_putchar() declarations
MIPS: Introduce HAS_RAPIDIO Kconfig option
MIPS: Octeon: Select HAS_RAPIDIO
Alexandre Belloni (4):
mips: mscc: build FIT image for Ocelot
MIPS: TXx9: remove useless RTC definitions
mips: dts: mscc: Add spi on Ocelot
mips: dts: mscc: enable spi and NOR flash support on ocelot PCB123
Christoph Hellwig (26):
MIPS: remove a dead ifdef from mach-ath25/dma-coherence.h
MIPS: simplify CONFIG_DMA_NONCOHERENT ifdefs
MIPS: remove CONFIG_DMA_COHERENT
MIPS: Octeon: unexport __phys_to_dma and __dma_to_phys
MIPS: Octeon: refactor swiotlb code
MIPS: loongson: remove loongson_dma_supported
MIPS: consolidate the swiotlb implementations
MIPS: remove the mips_dma_map_ops indirection
MIPS: make the default mips dma implementation optional
MIPS: Octeon: remove mips dma-default stubs
MIPS: Octeon: move swiotlb declarations out of dma-coherence.h
MIPS: loongson: untangle dma implementations
MIPS: loongson: remove loongson-3 handling from dma-coherence.h
MIPS: use dma_direct_ops for coherent I/O
MIPS: IP27: use dma_direct_ops
MIPS: move coherentio setup to setup.c
MIPS: use generic dma noncoherent ops for simple noncoherent platforms
MIPS: loongson64: use generic dma noncoherent ops
MIPS: IP32: use generic dma noncoherent ops
MIPS: ath25: use generic dma noncoherent ops
MIPS: jazz: split dma mapping operations from dma-default
dma-noncoherent: add a arch_sync_dma_for_cpu_all hook
MIPS: bmips: use generic dma noncoherent ops
MIPS: remove the old dma-default implementation
MIPS: remove unneeded includes from dma-mapping.h
MIPS: remove mips_swiotlb_ops
Felix Fietkau (2):
MIPS: ath79: fix system restart
MIPS: ath79: finetune cpu-overrides
Gabor Juhos (2):
MIPS: ath79: add lots of missing registers
MIPS: ath79: enable uart during early_prink
Geert Uytterhoeven (1):
MIPS: AR7: Normalize clk API
Hauke Mehrtens (1):
MIPS: lantiq: Use dma_zalloc_coherent() in dma code
Heiher (1):
MIPS: Fix ejtag handler on SMP
Huacai Chen (3):
MIPS: Change definition of cpu_relax() for Loongson-3
MIPS: Loongson: Add Loongson-3A R3.1 basic support
MIPS: Loongson64: Define and use some CP0 registers
Joe Perches (1):
MIPS: ath25: Convert random_ether_addr to eth_random_addr
John Crispin (1):
MIPS: ath79: select the PINCTRL subsystem
Joshua Kinard (3):
MIPS: Use !pci_is_root_bus(bus) in ops-bridge.c
MIPS: Fix delay slot bug in `atomic*_sub_if_positive' for R10000_LLSC_WAR
MIPS: Cleanup R10000_LLSC_WAR logic in atomic.h
Maciej W. Rozycki (4):
binfmt_elf: Respect error return from `regset->active'
MIPS: Correct the 64-bit DSP accumulator register size
MIPS: Add DSP ASE regset support
MIPS: Add FP_MODE regset support
Masahiro Yamada (5):
Revert "MIPS: boot: Define __ASSEMBLY__ for its.S build"
MIPS: boot: do not include $(cpp_flags) for preprocessing ITS
MIPS: boot: fix build rule of vmlinux.its.S
MIPS: boot: add missing targets for vmlinux.*.its
MIPS: boot: merge build rules of vmlinux.*.itb by using pattern rule
Mathias Kresin (1):
MIPS: ath79: get PCIe controller out of reset
Mathieu Malaterre (2):
MIPS: Ci20: Enable SPI/GPIO driver
MIPS: jz4780: DTS: Probe the spi-gpio driver from devicetree
Matt Redfearn (2):
MIPS: memset.S: Fix byte_fixup for MIPSr6
MIPS: memset.S: Add comments to fault fixup handlers
Matthias Schiffer (1):
MIPS: ath79: add support for QCA953x QCA956x TP9343
Nicholas Mc Guire (3):
MIPS: Octeon: assign bool true/false not 1/0
MIPS: Octeon: add missing of_node_put()
MIPS: generic: fix missing of_node_put()
Paul Burton (27):
MIPS: Schedule on CPUs we need to lose FPU for a mode switch
MIPS: Set MIPS_IC_SNOOPS_REMOTE for systems with CM
MIPS: Malta: Cleanup DMA coherence #ifdefs
MIPS: Malta: Use PIIX4 poweroff driver to power down
MIPS: Annotate cpu_wait implementations with __cpuidle
MIPS: Always use -march=<arch>, not -<arch> shortcuts
MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads
MIPS: Hardcode cpu_has_* where known at compile time due to ISA
MIPS: WARN_ON invalid DMA cache maintenance, not BUG_ON
MIPS: VDSO: Prevent use of smp_processor_id()
MIPS: Make (UN)CAC_ADDR() PHYS_OFFSET-agnostic
MIPS: Fix ISA virt/bus conversion for non-zero PHYS_OFFSET
MIPS: Allow auto-dection of ARCH_PFN_OFFSET & PHYS_OFFSET
MIPS: generic: Select MIPS_AUTO_PFN_OFFSET
MIPS: Remove nabi_no_regargs
MIPS: Remove unused sys_32_mmap2
MIPS: Delete unused code in linux32.c
MIPS: generic: Remove input symbols from defconfig
MIPS: genvdso: Remove GOT checks
MIPS: vdso: Allow clang's --target flag in VDSO cflags
MIPS: Avoid using array as parameter to write_c0_kpgd()
MIPS: Use read-write output operand in __write_64bit_c0_split()
MIPS: Use dins to simplify __write_64bit_c0_split()
MIPS: Always specify -EB or -EL when using clang
MIPS: VDSO: Force link endianness
MIPS: netlogic: xlr: Remove erroneous check in nlm_fmn_send()
MIPS: Remove remnants of UASM_ISA
Paul Cercueil (1):
MIPS: jz4740: Bump zload address
Quentin Schulz (3):
MIPS: mscc: ocelot: fix length of memory address space for MIIM
MIPS: mscc: ocelot: add MIIM1 bus
MIPS: mscc: ocelot: add interrupt controller properties to GPIO controller
Rickard Strandqvist (2):
arch: mips: pci: pci-ip27.c: Remove unused function
arch: mips: mm: page: Remove unused function
Rob Herring (5):
MIPS: octeon: use of_platform_populate to probe devices
MIPS: netlogic: remove unnecessary of_platform_bus_probe call
MIPS: bmips: remove unnecessary call to register "simple-bus"
MIPS: generic: remove unnecessary of_platform_populate call
MIPS: lantiq: remove unnecessary of_platform_default_populate call
Robert P. J. Day (1):
MIPS: Remove obsolete MIPS checks for DST node "chosen@0"
Serge Semin (3):
mips: mm: Create UCA-based ioremap_wc() method
mips: mm: Discard ioremap_uncached_accelerated() method
mips: mm: Discard ioremap_cacheable_cow() method
Steven J. Hill (7):
MIPS: Octeon: Remove unused CIU types.
MIPS: Octeon: Unify QLM data types in CIU header.
MIPS: Octeon: Convert CIU types to use bitfields.
MIPS: Octeon: Remove all unused CIU macros.
MIPS: Octeon: Create simple macro for CIU registers.
MIPS: Octeon: Simplify CIU register functions.
MIPS: Octeon: Remove extern declarations.
Thomas Bogendoerfer (2):
MIPS: Make elf2ecoff work on 64bit host machines
mips/jazz: provide missing dma_mask/coherent_dma_mask
Thomas Petazzoni (1):
mips: use asm-generic version of msi.h
Yegor Yefremov (1):
MIPS: kexec: fix typos
谢致邦 (XIE Zhibang) (2):
MIPS: Loongson: Set Loongson32 to MIPS32R1
MIPS: Loongson: Merge load addresses
.../devicetree/bindings/phy/phy-ath79-usb.txt | 4 +-
arch/mips/Kconfig | 56 +-
arch/mips/Makefile | 22 +-
arch/mips/alchemy/board-gpr.c | 3 +-
arch/mips/alchemy/board-mtx1.c | 3 +-
arch/mips/alchemy/board-xxs1500.c | 3 +-
arch/mips/alchemy/devboards/platform.c | 3 +-
arch/mips/ar7/clock.c | 29 +
arch/mips/ar7/prom.c | 4 +-
arch/mips/ath25/Kconfig | 1 +
arch/mips/ath25/board.c | 6 +-
arch/mips/ath25/early_printk.c | 5 +-
arch/mips/ath79/clock.c | 193 +
arch/mips/ath79/common.c | 8 +
arch/mips/ath79/early_printk.c | 64 +-
arch/mips/ath79/setup.c | 35 +-
arch/mips/bcm63xx/early_printk.c | 1 +
arch/mips/bmips/dma.c | 32 +-
arch/mips/bmips/setup.c | 7 -
arch/mips/boot/Makefile | 52 +-
arch/mips/boot/compressed/uart-prom.c | 3 +-
arch/mips/boot/dts/ingenic/jz4780.dtsi | 19 +
arch/mips/boot/dts/mscc/Makefile | 2 +-
arch/mips/boot/dts/mscc/ocelot.dtsi | 32 +-
arch/mips/boot/dts/mscc/ocelot_pcb123.dts | 10 +
arch/mips/boot/dts/qca/ar9132.dtsi | 2 +-
arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts | 3 +-
arch/mips/boot/dts/qca/ar9331.dtsi | 2 +-
arch/mips/boot/dts/qca/ar9331_dpt_module.dts | 5 +-
arch/mips/boot/dts/qca/ar9331_dragino_ms14.dts | 5 +-
arch/mips/boot/dts/qca/ar9331_omega.dts | 5 +-
arch/mips/boot/dts/qca/ar9331_tl_mr3020.dts | 5 +-
arch/mips/boot/ecoff.h | 61 +-
arch/mips/boot/elf2ecoff.c | 31 +-
arch/mips/cavium-octeon/dma-octeon.c | 191 +-
.../cavium-octeon/executive/cvmx-helper-rgmii.c | 5 +-
.../cavium-octeon/executive/cvmx-helper-sgmii.c | 7 +-
.../mips/cavium-octeon/executive/cvmx-helper-spi.c | 8 +-
.../cavium-octeon/executive/cvmx-helper-xaui.c | 7 +-
arch/mips/cavium-octeon/octeon-irq.c | 2 +-
arch/mips/cavium-octeon/octeon-platform.c | 4 +-
arch/mips/cavium-octeon/setup.c | 8 +-
arch/mips/configs/ci20_defconfig | 2 +
arch/mips/configs/generic_defconfig | 3 -
arch/mips/configs/malta_defconfig | 1 +
arch/mips/configs/malta_kvm_defconfig | 1 +
arch/mips/configs/malta_kvm_guest_defconfig | 1 +
arch/mips/configs/malta_qemu_32r6_defconfig | 1 +
arch/mips/configs/maltaaprp_defconfig | 1 +
arch/mips/configs/maltasmvp_defconfig | 1 +
arch/mips/configs/maltasmvp_eva_defconfig | 1 +
arch/mips/configs/maltaup_defconfig | 1 +
arch/mips/configs/maltaup_xpa_defconfig | 1 +
arch/mips/fw/arc/arc_con.c | 1 +
arch/mips/fw/arc/promlib.c | 1 +
arch/mips/fw/sni/sniprom.c | 1 +
arch/mips/generic/Kconfig | 12 +-
arch/mips/generic/Platform | 1 +
arch/mips/generic/board-ocelot_pcb123.its.S | 23 +
arch/mips/generic/init.c | 14 +-
arch/mips/generic/yamon-dt.c | 4 -
arch/mips/include/asm/Kbuild | 1 +
arch/mips/include/asm/atomic.h | 195 +-
arch/mips/include/asm/bmips.h | 16 -
arch/mips/include/asm/cpu-features.h | 176 +-
arch/mips/include/asm/cpu.h | 51 +-
arch/mips/include/asm/dma-coherence.h | 6 +-
arch/mips/include/asm/dma-direct.h | 17 +-
arch/mips/include/asm/dma-mapping.h | 20 +-
arch/mips/include/asm/io.h | 40 +-
arch/mips/include/asm/mach-ar7/spaces.h | 3 -
arch/mips/include/asm/mach-ath25/dma-coherence.h | 76 -
arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 771 +-
arch/mips/include/asm/mach-ath79/ath79.h | 34 +
.../include/asm/mach-ath79/cpu-feature-overrides.h | 6 +
arch/mips/include/asm/mach-bmips/dma-coherence.h | 54 -
.../include/asm/mach-cavium-octeon/dma-coherence.h | 79 -
arch/mips/include/asm/mach-generic/dma-coherence.h | 73 -
arch/mips/include/asm/mach-generic/kmalloc.h | 3 +-
arch/mips/include/asm/mach-generic/spaces.h | 10 +-
arch/mips/include/asm/mach-ip27/dma-coherence.h | 70 -
arch/mips/include/asm/mach-ip32/dma-coherence.h | 92 -
arch/mips/include/asm/mach-jazz/dma-coherence.h | 60 -
.../include/asm/mach-loongson64/dma-coherence.h | 93 -
.../asm/mach-loongson64/kernel-entry-init.h | 24 +-
arch/mips/include/asm/mach-pic32/spaces.h | 1 -
arch/mips/include/asm/mipsregs.h | 29 +-
arch/mips/include/asm/mmu_context.h | 2 -
arch/mips/include/asm/netlogic/xlr/fmn.h | 2 -
arch/mips/include/asm/octeon/cvmx-asxx-defs.h | 4 +-
arch/mips/include/asm/octeon/cvmx-ciu-defs.h | 10062 +------------------
arch/mips/include/asm/octeon/cvmx-gmxx-defs.h | 4 +-
arch/mips/include/asm/octeon/cvmx-pcsx-defs.h | 4 +-
arch/mips/include/asm/octeon/cvmx-pcsxx-defs.h | 4 +-
arch/mips/include/asm/octeon/cvmx-spxx-defs.h | 4 +-
arch/mips/include/asm/octeon/cvmx-stxx-defs.h | 4 +-
arch/mips/include/asm/octeon/octeon.h | 9 +-
arch/mips/include/asm/octeon/pci-octeon.h | 3 +
arch/mips/include/asm/page.h | 11 +-
arch/mips/include/asm/processor.h | 15 +-
arch/mips/include/asm/setup.h | 2 +
arch/mips/include/asm/sgialib.h | 1 -
arch/mips/include/asm/sim.h | 12 -
arch/mips/include/asm/smp.h | 12 +-
arch/mips/include/asm/txx9/generic.h | 1 -
arch/mips/include/asm/txx9/tx4939.h | 29 -
arch/mips/jazz/jazzdma.c | 141 +-
arch/mips/jazz/setup.c | 17 +-
arch/mips/jz4740/Platform | 2 +-
arch/mips/kernel/cpu-probe.c | 3 +-
arch/mips/kernel/early_printk.c | 2 -
arch/mips/kernel/early_printk_8250.c | 1 +
arch/mips/kernel/genex.S | 46 +
arch/mips/kernel/idle.c | 12 +-
arch/mips/kernel/linux32.c | 29 -
arch/mips/kernel/process.c | 80 +-
arch/mips/kernel/ptrace.c | 254 +-
arch/mips/kernel/ptrace32.c | 2 +-
arch/mips/kernel/relocate_kernel.S | 4 +-
arch/mips/kernel/setup.c | 38 +-
arch/mips/kernel/signal.c | 24 +-
arch/mips/kernel/signal_n32.c | 12 +-
arch/mips/kernel/signal_o32.c | 24 +-
arch/mips/kernel/traps.c | 7 -
arch/mips/lantiq/early_printk.c | 1 +
arch/mips/lantiq/prom.c | 8 -
arch/mips/lantiq/xway/dma.c | 3 +-
arch/mips/lasat/prom.c | 1 +
arch/mips/lib/memset.S | 21 +-
arch/mips/loongson32/Platform | 8 +-
arch/mips/loongson64/Kconfig | 5 -
arch/mips/loongson64/common/Makefile | 6 +-
arch/mips/loongson64/common/cs5536/cs5536_ohci.c | 2 +-
arch/mips/loongson64/common/dma-swiotlb.c | 109 -
arch/mips/loongson64/common/dma.c | 18 +
arch/mips/loongson64/common/early_printk.c | 1 +
arch/mips/loongson64/common/env.c | 3 +-
arch/mips/loongson64/loongson-3/Makefile | 2 +-
arch/mips/loongson64/loongson-3/dma.c | 25 +
arch/mips/loongson64/loongson-3/smp.c | 3 +-
arch/mips/mm/Makefile | 3 +-
arch/mips/mm/c-r4k.c | 18 +-
arch/mips/mm/cache.c | 4 +-
arch/mips/mm/dma-default.c | 404 -
arch/mips/mm/dma-noncoherent.c | 208 +
arch/mips/mm/page.c | 15 -
arch/mips/mm/tlbex.c | 2 +-
arch/mips/mm/uasm-micromips.c | 1 -
arch/mips/mm/uasm-mips.c | 1 -
arch/mips/mti-malta/Makefile | 2 -
arch/mips/mti-malta/malta-pm.c | 96 -
arch/mips/mti-malta/malta-reset.c | 30 -
arch/mips/mti-malta/malta-setup.c | 39 +-
arch/mips/netlogic/common/earlycons.c | 1 +
arch/mips/netlogic/xlp/dt.c | 14 -
arch/mips/paravirt/serial.c | 5 +-
arch/mips/pci/ops-bridge.c | 4 +-
arch/mips/pci/pci-ar2315.c | 24 +
arch/mips/pci/pci-ar724x.c | 42 +
arch/mips/pci/pci-ip27.c | 25 +-
arch/mips/pci/pci-octeon.c | 4 -
arch/mips/pci/pcie-octeon.c | 6 +-
arch/mips/pic32/pic32mzda/early_console.c | 5 +-
arch/mips/ralink/early_printk.c | 7 +-
arch/mips/sgi-ip27/ip27-console.c | 1 +
arch/mips/sgi-ip32/Makefile | 2 +-
arch/mips/sgi-ip32/ip32-dma.c | 37 +
arch/mips/sibyte/Kconfig | 1 -
arch/mips/sibyte/common/cfe.c | 1 +
arch/mips/txx9/generic/setup.c | 1 +
arch/mips/vdso/Makefile | 9 +-
arch/mips/vdso/genvdso.h | 51 -
arch/mips/vr41xx/common/pmu.c | 3 +-
drivers/platform/mips/cpu_hwmon.c | 3 +-
fs/binfmt_elf.c | 2 +-
include/linux/dma-noncoherent.h | 8 +
include/uapi/linux/elf.h | 2 +
kernel/dma/noncoherent.c | 8 +-
178 files changed, 2956 insertions(+), 12251 deletions(-)
create mode 100644 arch/mips/generic/board-ocelot_pcb123.its.S
delete mode 100644 arch/mips/include/asm/mach-ath25/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-bmips/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-generic/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-ip27/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-ip32/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-jazz/dma-coherence.h
delete mode 100644 arch/mips/include/asm/mach-loongson64/dma-coherence.h
delete mode 100644 arch/mips/loongson64/common/dma-swiotlb.c
create mode 100644 arch/mips/loongson64/common/dma.c
create mode 100644 arch/mips/loongson64/loongson-3/dma.c
delete mode 100644 arch/mips/mm/dma-default.c
create mode 100644 arch/mips/mm/dma-noncoherent.c
delete mode 100644 arch/mips/mti-malta/malta-pm.c
delete mode 100644 arch/mips/mti-malta/malta-reset.c
create mode 100644 arch/mips/sgi-ip32/ip32-dma.c
Attachment:
signature.asc
Description: PGP signature
