pm24.git/arch/openrisc, branch rust-6.8

Merge tag 'for-linus' of https://github.com/openrisc/linux

2023-09-05T17:09:31Z

Pull OpenRISC updates from Stafford Horne: - Fixes from me to cleanup all compiler warnings reported under arch/openrisc - One cleanup from Linus Walleij to convert pfn macros to static inlines * tag 'for-linus' of https://github.com/openrisc/linux: openrisc: Remove kernel-doc marker from ioremap comment openrisc: Remove unused tlb_init function openriac: Remove unused nommu_dump_state function openrisc: Include cpu.h and switch_to.h for prototypes openrisc: Add prototype for die to bug.h openrisc: Add prototype for show_registers to processor.h openrisc: Declare do_signal function as static openrisc: Add missing prototypes for assembly called fnctions openrisc: Make pfn accessors statics inlines

Merge tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-08-31T19:20:12Z

Pull x86 shadow stack support from Dave Hansen: "This is the long awaited x86 shadow stack support, part of Intel's Control-flow Enforcement Technology (CET). CET consists of two related security features: shadow stacks and indirect branch tracking. This series implements just the shadow stack part of this feature, and just for userspace. The main use case for shadow stack is providing protection against return oriented programming attacks. It works by maintaining a secondary (shadow) stack using a special memory type that has protections against modification. When executing a CALL instruction, the processor pushes the return address to both the normal stack and to the special permission shadow stack. Upon RET, the processor pops the shadow stack copy and compares it to the normal stack copy. For more information, refer to the links below for the earlier versions of this patch set" Link: https://lore.kernel.org/lkml/20220130211838.8382-1-rick.p.edgecombe@intel.com/ Link: https://lore.kernel.org/lkml/20230613001108.3040476-1-rick.p.edgecombe@intel.com/ * tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits) x86/shstk: Change order of __user in type x86/ibt: Convert IBT selftest to asm x86/shstk: Don't retry vm_munmap() on -EINTR x86/kbuild: Fix Documentation/ reference x86/shstk: Move arch detail comment out of core mm x86/shstk: Add ARCH_SHSTK_STATUS x86/shstk: Add ARCH_SHSTK_UNLOCK x86: Add PTRACE interface for shadow stack selftests/x86: Add shadow stack test x86/cpufeatures: Enable CET CR4 bit for shadow stack x86/shstk: Wire in shadow stack interface x86: Expose thread features in /proc/$PID/status x86/shstk: Support WRSS for userspace x86/shstk: Introduce map_shadow_stack syscall x86/shstk: Check that signal frame is shadow stack mem x86/shstk: Check that SSP is aligned on sigreturn x86/shstk: Handle signals for shadow stack x86/shstk: Introduce routines modifying shstk x86/shstk: Handle thread shadow stack x86/shstk: Add user-mode shadow stack support ...

Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-08-29T21:53:51Z

Pull non-MM updates from Andrew Morton: - An extensive rework of kexec and crash Kconfig from Eric DeVolder ("refactor Kconfig to consolidate KEXEC and CRASH options") - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a couple of macros to args.h") - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper commands") - vsprintf inclusion rationalization from Andy Shevchenko ("lib/vsprintf: Rework header inclusions") - Switch the handling of kdump from a udev scheme to in-kernel handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory hot un/plug") - Many singleton patches to various parts of the tree * tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits) document while_each_thread(), change first_tid() to use for_each_thread() drivers/char/mem.c: shrink character device's devlist[] array x86/crash: optimize CPU changes crash: change crash_prepare_elf64_headers() to for_each_possible_cpu() crash: hotplug support for kexec_load() x86/crash: add x86 crash hotplug support crash: memory and CPU hotplug sysfs attributes kexec: exclude elfcorehdr from the segment digest crash: add generic infrastructure for crash hotplug support crash: move a few code bits to setup support of crash hotplug kstrtox: consistently use _tolower() kill do_each_thread() nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse scripts/bloat-o-meter: count weak symbol sizes treewide: drop CONFIG_EMBEDDED lockdep: fix static memory detection even more lib/vsprintf: declare no_hash_pointers in sprintf.h lib/vsprintf: split out sprintf() and friends kernel/fork: stop playing lockless games for exe_file replacement adfs: delete unused "union adfs_dirtail" definition ...

openrisc: implement the new page table range API

2023-08-24T23:20:22Z

Add PFN_PTE_SHIFT, update_mmu_cache_range() and flush_dcache_folio(). Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to per-folio. Link: https://lkml.kernel.org/r/20230802151406.3735276-20-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Mike Rapoport (IBM) Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Signed-off-by: Andrew Morton

treewide: drop CONFIG_EMBEDDED

2023-08-21T20:46:25Z

There is only one Kconfig user of CONFIG_EMBEDDED and it can be switched to EXPERT or "if !ARCH_MULTIPLATFORM" (suggested by Arnd). Link: https://lkml.kernel.org/r/20230816055010.31534-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap Acked-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Acked-by: Palmer Dabbelt [RISC-V] Acked-by: Greg Ungerer Acked-by: Jason A. Donenfeld Acked-by: Michael Ellerman [powerpc] Cc: Russell King Cc: Vineet Gupta Cc: Brian Cain Cc: Michal Simek Cc: Thomas Bogendoerfer Cc: Dinh Nguyen Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: Nicholas Piggin Cc: Christophe Leroy Cc: Paul Walmsley Cc: Albert Ou Cc: Yoshinori Sato Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Max Filippov Cc: Josh Triplett Cc: Masahiro Yamada Signed-off-by: Andrew Morton

openrisc: convert __pte_free_tlb() to use ptdescs

2023-08-21T20:37:57Z

Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Link: https://lkml.kernel.org/r/20230807230513.102486-26-vishal.moola@gmail.com Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Christophe Leroy Cc: Claudio Imbrenda Cc: Dave Hansen Cc: David Hildenbrand Cc: "David S. Miller" Cc: Dinh Nguyen Cc: Geert Uytterhoeven Cc: Geert Uytterhoeven Cc: Guo Ren Cc: Huacai Chen Cc: Hugh Dickins Cc: John Paul Adrian Glaubitz Cc: Jonas Bonn Cc: Matthew Wilcox Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Richard Weinberger Cc: Thomas Bogendoerfer Cc: Yoshinori Sato Signed-off-by: Andrew Morton

openrisc: Remove kernel-doc marker from ioremap comment

2023-08-21T07:15:25Z

Replace the kernel-doc marker (/**) with a regular comment to fix the warning: arch/openrisc/mm/ioremap.c:108: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Signed-off-by: Stafford Horne

openrisc: Remove unused tlb_init function

2023-08-21T07:15:25Z

When compiling with W=1 enabling -Wmissing-prototypes the compiler warns: arch/openrisc/mm/tlb.c:188:13: error: no previous prototype for 'tlb_init' [-Werror=missing-prototypes] This function is not implemented or used so remove it. Reported-by: Arnd Bergmann Closes: https://lore.kernel.org/linux-kernel/20230810141947.1236730-17-arnd@kernel.org/ Signed-off-by: Stafford Horne

openriac: Remove unused nommu_dump_state function

2023-08-21T07:15:25Z

When compiling with W=1 enabling -Wmissing-prototypes the compiler warns: arch/openrisc/kernel/traps.c:146:6: error: no previous prototype for 'nommu_dump_state' [-Werror=missing-prototypes] This function is not used so remove it. Reported-by: Arnd Bergmann Closes: https://lore.kernel.org/linux-kernel/20230810141947.1236730-17-arnd@kernel.org/ Signed-off-by: Stafford Horne

openrisc: Include cpu.h and switch_to.h for prototypes

2023-08-21T07:15:25Z

When compiling with W=1 enabling -Wmissing-prototypes the compiler warns: arch/openrisc/kernel/process.c:100:6: error: no previous prototype for 'arch_cpu_idle' [-Werror=missing-prototypes] arch/openrisc/kernel/process.c:240:21: error: no previous prototype for '__switch_to' [-Werror=missing-prototypes] Fix these by adding the approrpiate header files to process.c which brings in the prototype definitions. Reported-by: Arnd Bergmann Closes: https://lore.kernel.org/linux-kernel/20230810141947.1236730-17-arnd@kernel.org/ Signed-off-by: Stafford Horne