kernel.git/arch/m68k/kernel, branch linux-6.15.y

m68k: Don't unregister boot console needlessly

2025-08-15T10:16:27Z

[ Upstream commit 83f672a7f69ec38b1bbb27221e342937f68c11c7 ] When MACH_IS_MVME147, the boot console calls mvme147_scc_write() to generate console output. That will continue to work even after debug_cons_nputs() becomes unavailable so there's no need to unregister the boot console. Take the opportunity to remove a repeated MACH_IS_* test. Use the actual .write method (instead of a wrapper) and test that pointer instead. This means adding an unused parameter to debug_cons_nputs() for consistency with the struct console API. early_printk.c is only built when CONFIG_EARLY_PRINTK=y. As of late, head.S is only built when CONFIG_MMU_MOTOROLA=y. So let the former symbol depend on the latter, to obviate some ifdef conditionals. Cc: Daniel Palmer Fixes: 077b33b9e283 ("m68k: mvme147: Reinstate early console") Signed-off-by: Finn Thain Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/d1d4328e5aa9a87bd8352529ce62b767731c0530.1743467205.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin

Merge tag 'm68knommu-for-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

2025-03-28T03:20:15Z

Pull m68knommu updates from Greg Ungerer: - remove unused include of linux/fb.h - use strscpy() instead of strncpy() * tag 'm68knommu-for-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: mm: Replace deprecated strncpy() with strscpy() m68k: Do not include

Merge tag 'm68k-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

2025-03-25T21:16:38Z

Pull m68k updates from Geert Uytterhoeven: - misc fixes and improvements - defconfig updates * tag 'm68k-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: defconfig: Update defconfigs for v6.14-rc1 m68k: setup: Remove size argument when calling strscpy() m68k: sun3: Fix DEBUG_MMU_EMU build m68k: sun3: Use str_read_write() helper in mmu_emu_handle_fault()

m68k: mm: Replace deprecated strncpy() with strscpy()

2025-03-16T23:27:59Z

strncpy() is deprecated for NUL-terminated destination buffers. Use strscpy() instead and remove the manual NUL-termination. Compile-tested only. Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by: Thorsten Blum Tested-by: Jean-Michel Hautbois Reviewed-by: Geert Uytterhoeven Reviewed-by: Kees Cook Signed-off-by: Greg Ungerer

m68k: Do not include

2025-03-16T23:27:59Z

The m68k architecture's source files do not require . Remove the include statements. Signed-off-by: Thomas Zimmermann Signed-off-by: Greg Ungerer

m68k: setup: Remove size argument when calling strscpy()

2025-03-10T13:06:38Z

The size parameter of strscpy() is optional and specifying the size of the destination buffer is unnecessary. Remove it to simplify the code. Signed-off-by: Thorsten Blum Tested-by: Jean-Michel Hautbois Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/20250302230532.245884-2-thorsten.blum@linux.dev Signed-off-by: Geert Uytterhoeven

fs: add open_tree_attr()

2025-02-12T11:12:28Z

Add open_tree_attr() which allow to atomically create a detached mount tree and set mount options on it. If OPEN_TREE_CLONE is used this will allow the creation of a detached mount with a new set of mount options without it ever being exposed to userspace without that set of mount options applied. Link: https://lore.kernel.org/r/20250128-work-mnt_idmap-update-v2-v1-3-c25feb0d2eb3@kernel.org Reviewed-by: "Seth Forshee (DigitalOcean)" Signed-off-by: Christian Brauner

Merge tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

2024-11-19T02:00:18Z

Pull m68k updates from Geert Uytterhoeven: - Revive SCSI and early console support on MVME147 - Fix early kernel parameters using static keys - Prevent and improve handling of kernel configurations that lack specific platform, CPU, or MMU support, to avoid build failures - Miscellaneous fixes and improvements - Defconfig updates * tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: defconfig: Update defconfigs for v6.12-rc1 m68k: mvme147: Reinstate early console m68k: Make sure NR_IRQS is never zero m68k: Select M68020 as fallback for classic m68k: Move Sun 3 into a top-level platform option m68k: kernel: Use str_read_write() helper function m68k: Initialize jump labels early during setup_arch() m68k: mvme147: Fix SCSI controller IRQ numbers m68k: mvme147: Make mvme147_sched_init() __init

fs/xattr: add *at family syscalls

2024-11-06T17:59:44Z

Add the four syscalls setxattrat(), getxattrat(), listxattrat() and removexattrat(). Those can be used to operate on extended attributes, especially security related ones, either relative to a pinned directory or on a file descriptor without read access, avoiding a /proc//fd/ detour, requiring a mounted procfs. One use case will be setfiles(8) setting SELinux file contexts ("security.selinux") without race conditions and without a file descriptor opened with read access requiring SELinux read permission. Use the do_{name}at() pattern from fs/open.c. Pass the value of the extended attribute, its length, and for setxattrat(2) the command (XATTR_CREATE or XATTR_REPLACE) via an added struct xattr_args to not exceed six syscall arguments and not merging the AT_* and XATTR_* flags. [AV: fixes by Christian Brauner folded in, the entire thing rebased on top of {filename,file}_...xattr() primitives, treatment of empty pathnames regularized. As the result, AT_EMPTY_PATH+NULL handling is cheap, so f...(2) can use it] Signed-off-by: Christian Göttsche Link: https://lore.kernel.org/r/20240426162042.191916-1-cgoettsche@seltendoof.de Reviewed-by: Arnd Bergmann Reviewed-by: Christian Brauner CC: x86@kernel.org CC: linux-alpha@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: linux-arm-kernel@lists.infradead.org CC: linux-ia64@vger.kernel.org CC: linux-m68k@lists.linux-m68k.org CC: linux-mips@vger.kernel.org CC: linux-parisc@vger.kernel.org CC: linuxppc-dev@lists.ozlabs.org CC: linux-s390@vger.kernel.org CC: linux-sh@vger.kernel.org CC: sparclinux@vger.kernel.org CC: linux-fsdevel@vger.kernel.org CC: audit@vger.kernel.org CC: linux-arch@vger.kernel.org CC: linux-api@vger.kernel.org CC: linux-security-module@vger.kernel.org CC: selinux@vger.kernel.org [brauner: slight tweaks] Signed-off-by: Christian Brauner Signed-off-by: Al Viro

m68k: mvme147: Reinstate early console

2024-11-06T14:22:13Z

Commit a38eaa07a0ce ("m68k/mvme147: config.c - Remove unused functions"), removed the console functionality for the mvme147 instead of wiring it up to an early console. Put the console write function back and wire it up like mvme16x does so it's possible to see Linux boot on this fine hardware once more. Fixes: a38eaa07a0ce ("m68k/mvme147: config.c - Remove unused functions") Signed-off-by: Daniel Palmer Co-developed-by: Finn Thain Signed-off-by: Finn Thain Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/a82e8f0068a8722996a0ccfe666abb5e0a5c120d.1730850684.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven