BMC/Intel-BMC/linux.git/arch/openrisc/kernel, branch dev-5.15-intel

openrisc: Add clone3 ABI wrapper

2022-01-27T10:04:10+00:00

[ Upstream commit 433fe39f674d58bc7a3e8254a5d2ffc290b7e04e ] Like fork and clone the clone3 syscall needs a wrapper to save callee saved registers, which is required by the OpenRISC ABI. This came up after auditing code following a discussion with Rob Landley and Arnd Bergmann [0]. Tested with the clone3 kselftests and there were no issues. [0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944 Fixes: 07e83dfbe16c ("openrisc: Enable the clone3 syscall") Cc: Rob Landley Cc: Arnd Bergmann Signed-off-by: Stafford Horne Signed-off-by: Sasha Levin

openrisc: fix SMP tlb flush NULL pointer dereference

2021-11-18T18:17:06+00:00

[ Upstream commit 27dff9a9c247d4e38d82c2e7234914cfe8499294 ] Throughout the OpenRISC kernel port VMA is passed as NULL when flushing kernel tlb entries. Somehow this was missed when I was testing c28b27416da9 ("openrisc: Implement proper SMP tlb flushing") and now the SMP kernel fails to completely boot. In OpenRISC VMA is used only to determine which cores need to have their TLB entries flushed. This patch updates the logic to flush tlbs on all cores when the VMA is passed as NULL. Also, we update places VMA is passed as NULL to use flush_tlb_kernel_range instead. Now, the only place VMA is passed as NULL is in the implementation of flush_tlb_kernel_range. Fixes: c28b27416da9 ("openrisc: Implement proper SMP tlb flushing") Reported-by: Jan Henrik Weinstock Signed-off-by: Stafford Horne Signed-off-by: Sasha Levin

Merge branch 'akpm' (patches from Andrew)

2021-09-08T19:55:35+00:00

Merge more updates from Andrew Morton: "147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f. Subsystems affected by this patch series: mm (memory-hotplug, rmap, ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan), alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib, checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig, selftests, ipc, and scripts" * emailed patches from Andrew Morton : (94 commits) scripts: check_extable: fix typo in user error message mm/workingset: correct kernel-doc notations ipc: replace costly bailout check in sysvipc_find_ipc() selftests/memfd: remove unused variable Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH configs: remove the obsolete CONFIG_INPUT_POLLDEV prctl: allow to setup brk for et_dyn executables pid: cleanup the stale comment mentioning pidmap_init(). kernel/fork.c: unexport get_{mm,task}_exe_file coredump: fix memleak in dump_vma_snapshot() fs/coredump.c: log if a core dump is aborted due to changed file permissions nilfs2: use refcount_dec_and_lock() to fix potential UAF nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_device_group trap: cleanup trap_init() init: move usermodehelper_enable() to populate_rootfs() ...

trap: cleanup trap_init()

2021-09-08T18:50:27+00:00

There are some empty trap_init() definitions in different ARCHs, Introduce a new weak trap_init() function to clean them up. Link: https://lkml.kernel.org/r/20210812123602.76356-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Acked-by: Russell King (Oracle) [arm32] Acked-by: Vineet Gupta [arc] Acked-by: Michael Ellerman [powerpc] Cc: Yoshinori Sato Cc: Ley Foon Tan Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: James E.J. Bottomley Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Paul Walmsley Cc: Jeff Dike Cc: Richard Weinberger Cc: Anton Ivanov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2021-09-03T22:33:47+00:00

Pull Kbuild updates from Masahiro Yamada: - Add -s option (strict mode) to merge_config.sh to make it fail when any symbol is redefined. - Show a warning if a different compiler is used for building external modules. - Infer --target from ARCH for CC=clang to let you cross-compile the kernel without CROSS_COMPILE. - Make the integrated assembler default (LLVM_IAS=1) for CC=clang. - Add to the kernel source instead of borrowing from the compiler. - Add Nick Desaulniers as a Kbuild reviewer. - Drop stale cc-option tests. - Fix the combination of CONFIG_TRIM_UNUSED_KSYMS and CONFIG_LTO_CLANG to handle symbols in inline assembly. - Show a warning if 'FORCE' is missing for if_changed rules. - Various cleanups * tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kbuild: redo fake deps at include/ksym/*.h kbuild: clean up objtool_args slightly modpost: get the *.mod file path more simply checkkconfigsymbols.py: Fix the '--ignore' option kbuild: merge vmlinux_link() between ARCH=um and other architectures kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh kbuild: merge vmlinux_link() between the ordinary link and Clang LTO kbuild: remove stale *.symversions kbuild: remove unused quiet_cmd_update_lto_symversions gen_compile_commands: extract compiler command from a series of commands x86: remove cc-option-yn test for -mtune= arc: replace cc-option-yn uses with cc-option s390: replace cc-option-yn uses with cc-option ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild sparc: move the install rule to arch/sparc/Makefile security: remove unneeded subdir-$(CONFIG_...) kbuild: sh: remove unused install script kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y kbuild: Switch to 'f' variants of integrated assembler flag kbuild: Shuffle blank line to improve comment meaning ...

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

2021-09-03T18:03:00+00:00

Pull OpenRISC updates from Stafford Horne: "A few cleanups and compiler warning fixes for OpenRISC. Also, this includes dts and defconfig updates to enable Ethernet on OpenRISC/Litex FPGA SoC's now that the LiteEth driver has gone upstream" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc/litex: Update defconfig openrisc/litex: Add ethernet device openrisc/litex: Update uart address openrisc: Fix compiler warnings in setup openrisc: rename or32 code & comments to or1k openrisc: don't printk() unconditionally

isystem: trim/fixup stdarg.h and other headers

2021-08-19T00:02:55+00:00

Delete/fixup few includes in anticipation of global -isystem compile option removal. Note: crypto/aegis128-neon-inner.c keeps due to redefinition of uintptr_t error (one definition comes from , another from ). Signed-off-by: Alexey Dobriyan Signed-off-by: Masahiro Yamada

openrisc: Fix compiler warnings in setup

2021-08-10T21:14:23+00:00

This was pointed out with the recent name change of or32_early_setup to or1k_early_setup. Investigating the file I found a few other warnings so cleaning them up here. arch/openrisc/kernel/setup.c:220:13: warning: no previous prototype for 'or1k_early_setup' [-Wmissing-prototypes] 220 | void __init or1k_early_setup(void *fdt) | ^~~~~~~~~~~~~~~~ Fix this the missing or1k_early_setup prototype warning by adding an asm/setup.h file to define the prototype. arch/openrisc/kernel/setup.c:246:13: warning: no previous prototype for 'detect_unit_config' [-Wmissing-prototypes] 246 | void __init detect_unit_config(unsigned long upr, unsigned long mask, | ^~~~~~~~~~~~~~~~~~ The function detect_unit_config is not used, just remove it. arch/openrisc/kernel/setup.c:221: warning: Function parameter or member 'fdt' not described in 'or1k_early_setup' Add @fdt docs to the function comment to suppress this warning. Reported-by: kernel test robot Signed-off-by: Stafford Horne Reviewed-by: Randy Dunlap

openrisc: rename or32 code & comments to or1k

2021-08-05T01:53:59+00:00

From Documentation/openrisc/todo.rst, rename "or32" in the source code to "or1k" since this is the name that has been settled on. Signed-off-by: Randy Dunlap Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: openrisc@lists.librecores.org Signed-off-by: Stafford Horne

openrisc: don't printk() unconditionally

2021-08-05T01:52:36+00:00

Don't call printk() when CONFIG_PRINTK is not set. Fixes the following build errors: or1k-linux-ld: arch/openrisc/kernel/entry.o: in function `_external_irq_handler': (.text+0x804): undefined reference to `printk' (.text+0x804): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `printk' Fixes: 9d02a4283e9c ("OpenRISC: Boot code") Signed-off-by: Randy Dunlap Reported-by: kernel test robot Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: openrisc@lists.librecores.org Signed-off-by: Stafford Horne