kernel/linux.git/arch/m68k/include/asm, branch v6.1.168

m68k: bitops: Fix find_*_bit() signatures

2025-10-29T13:04:36+00:00

[ Upstream commit 6d5674090543b89aac0c177d67e5fb32ddc53804 ] The function signatures of the m68k-optimized implementations of the find_{first,next}_{,zero_}bit() helpers do not match the generic variants. Fix this by changing all non-pointer inputs and outputs to "unsigned long", and updating a few local variables. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202509092305.ncd9mzaZ-lkp@intel.com/ Signed-off-by: Geert Uytterhoeven Acked-by: "Yury Norov (NVIDIA)" Link: https://patch.msgid.link/de6919554fbb4cd1427155c6bafbac8a9df822c8.1757517135.git.geert@linux-m68k.org Signed-off-by: Sasha Levin

m68k: vga: Fix I/O defines

2025-02-21T12:49:38+00:00

commit 53036937a101b5faeaf98e7438555fa854a1a844 upstream. Including m68k's in vga.h on nommu platforms results in conflicting defines with io_no.h for various I/O macros from the __raw_read and __raw_write families. An example error is In file included from arch/m68k/include/asm/vga.h:12, from include/video/vga.h:22, from include/linux/vgaarb.h:34, from drivers/video/aperture.c:12: >> arch/m68k/include/asm/raw_io.h:39: warning: "__raw_readb" redefined 39 | #define __raw_readb in_8 | In file included from arch/m68k/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:17, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:11, from include/linux/interrupt.h:11, from include/linux/trace_recursion.h:5, from include/linux/ftrace.h:10, from include/linux/kprobes.h:28, from include/linux/kgdb.h:19, from include/linux/fb.h:6, from drivers/video/aperture.c:5: arch/m68k/include/asm/io_no.h:16: note: this is the location of the previous definition 16 | #define __raw_readb(addr) \ | Include , which avoids raw_io.h on nommu platforms. Also change the defined values of some of the read/write symbols in vga.h to __raw_read/__raw_write as the raw_in/raw_out symbols are not generally available. Signed-off-by: Thomas Zimmermann Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202501071629.DNEswlm8-lkp@intel.com/ Fixes: 5c3f968712ce ("m68k/video: Create ") Cc: Geert Uytterhoeven Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: Helge Deller Cc: stable@vger.kernel.org # v3.5+ Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/20250107095912.130530-1-tzimmermann@suse.de Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

m68k: mcfgpio: Fix incorrect register offset for CONFIG_M5441x

2024-12-14T18:53:46+00:00

[ Upstream commit f212140962c93cd5da43283a18e31681540fc23d ] Fix a typo in the CONFIG_M5441x preprocessor condition, where the GPIO register offset was incorrectly set to 8 instead of 0. This prevented proper GPIO configuration for m5441x targets. Fixes: bea8bcb12da0 ("m68knommu: Add support for the Coldfire m5441x.") Signed-off-by: Jean-Michel Hautbois Signed-off-by: Greg Ungerer Signed-off-by: Sasha Levin

m68k: mvme147: Fix SCSI controller IRQ numbers

2024-12-14T18:53:15+00:00

[ Upstream commit 47bc874427382018fa2e3e982480e156271eee70 ] Sometime long ago the m68k IRQ code was refactored and the interrupt numbers for SCSI controller on this board ended up wrong, and it hasn't worked since. The PCC adds 0x40 to the vector for its interrupts so they end up in the user interrupt range. Hence, the kernel number should be the kernel offset for user interrupt range + the PCC interrupt number. Fixes: 200a3d352cd5 ("[PATCH] m68k: convert VME irq code") Signed-off-by: Daniel Palmer Reviewed-by: Finn Thain Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/0e7636a21a0274eea35bfd5d874459d5078e97cc.1727926187.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin

mm: remove kern_addr_valid() completely

2024-11-08T15:26:39+00:00

[ Upstream commit e025ab842ec35225b1a8e163d1f311beb9e38ce9 ] Most architectures (except arm64/x86/sparc) simply return 1 for kern_addr_valid(), which is only used in read_kcore(), and it calls copy_from_kernel_nofault() which could check whether the address is a valid kernel address. So as there is no need for kern_addr_valid(), let's remove it. Link: https://lkml.kernel.org/r/20221018074014.185687-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Acked-by: Geert Uytterhoeven [m68k] Acked-by: Heiko Carstens [s390] Acked-by: Christoph Hellwig Acked-by: Helge Deller [parisc] Acked-by: Michael Ellerman [powerpc] Acked-by: Guo Ren [csky] Acked-by: Catalin Marinas [arm64] Cc: Alexander Gordeev Cc: Andy Lutomirski Cc: Anton Ivanov Cc: Cc: Borislav Petkov Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Chris Zankel Cc: Dave Hansen Cc: David S. Miller Cc: Dinh Nguyen Cc: Greg Ungerer Cc: H. Peter Anvin Cc: Huacai Chen Cc: Ingo Molnar Cc: Ivan Kokshaysky Cc: James Bottomley Cc: Johannes Berg Cc: Jonas Bonn Cc: Matt Turner Cc: Max Filippov Cc: Michal Simek Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Richard Henderson Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Stefan Kristiansson Cc: Sven Schnelle Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Vineet Gupta Cc: Will Deacon Cc: Xuerui Wang Cc: Yoshinori Sato Signed-off-by: Andrew Morton Stable-dep-of: 3d5854d75e31 ("fs/proc/kcore.c: allow translation of physical memory addresses") Signed-off-by: Sasha Levin

m68k: cmpxchg: Fix return value for default case in __arch_xchg()

2024-08-03T06:49:02+00:00

[ Upstream commit 21b9e722ad28c19c2bc83f18f540b3dbd89bf762 ] The return value of __invalid_xchg_size() is assigned to tmp instead of the return variable x. Assign it to x instead. Fixes: 2501cf768e4009a0 ("m68k: Fix xchg/cmpxchg to fail to link if given an inappropriate pointer") Signed-off-by: Thorsten Blum Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/20240702034116.140234-2-thorsten.blum@toblux.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin

m68k/cpu: Switch to arch_cpu_finalize_init()

2023-08-08T18:03:46+00:00

commit 9ceecc2589b9d7cef6b321339ed8de484eac4b20 upstream check_bugs() is about to be phased out. Switch over to the new arch_cpu_finalize_init() implementation. No functional change. Signed-off-by: Thomas Gleixner Acked-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230613224545.254342916@linutronix.de Signed-off-by: Daniel Sneddon Signed-off-by: Greg Kroah-Hartman

kernel: exit: cleanup release_thread()

2022-09-12T04:55:07+00:00

Only x86 has own release_thread(), introduce a new weak release_thread() function to clean empty definitions in other ARCHs. Link: https://lkml.kernel.org/r/20220819014406.32266-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Acked-by: Guo Ren [csky] Acked-by: Russell King (Oracle) Acked-by: Geert Uytterhoeven Acked-by: Brian Cain Acked-by: Michael Ellerman [powerpc] Acked-by: Stafford Horne [openrisc] Acked-by: Catalin Marinas [arm64] Acked-by: Huacai Chen [LoongArch] Cc: Alexander Gordeev Cc: Anton Ivanov Cc: Borislav Petkov Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Chris Zankel Cc: Dave Hansen Cc: "David S. Miller" Cc: Dinh Nguyen Cc: Guo Ren [csky] Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ivan Kokshaysky Cc: James Bottomley Cc: Johannes Berg Cc: Jonas Bonn Cc: Matt Turner Cc: Max Filippov Cc: Michal Simek Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Richard Henderson Cc: Richard Weinberger Cc: Rich Felker Cc: Stefan Kristiansson Cc: Sven Schnelle Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Vineet Gupta Cc: Will Deacon Cc: Xuerui Wang Cc: Yoshinori Sato Signed-off-by: Andrew Morton

provide arch_test_bit_acquire for architectures that define test_bit

2022-08-27T16:49:54+00:00

Some architectures define their own arch_test_bit and they also need arch_test_bit_acquire, otherwise they won't compile. We also clean up the code by using the generic test_bit if that is equivalent to the arch-specific version. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org Fixes: 8238b4579866 ("wait_on_bit: add an acquire memory barrier") Signed-off-by: Linus Torvalds

Merge tag 'bitmap-6.0-rc1' of https://github.com/norov/linux

2022-08-08T00:52:35+00:00

Pull bitmap updates from Yury Norov: - fix the duplicated comments on bitmap_to_arr64() (Qu Wenruo) - optimize out non-atomic bitops on compile-time constants (Alexander Lobakin) - cleanup bitmap-related headers (Yury Norov) - x86/olpc: fix 'logical not is only applied to the left hand side' (Alexander Lobakin) - lib/nodemask: inline wrappers around bitmap (Yury Norov) * tag 'bitmap-6.0-rc1' of https://github.com/norov/linux: (26 commits) lib/nodemask: inline next_node_in() and node_random() powerpc: drop dependency on in archrandom.h x86/olpc: fix 'logical not is only applied to the left hand side' lib/cpumask: move some one-line wrappers to header file headers/deps: mm: align MANITAINERS and Docs with new gfp.h structure headers/deps: mm: Split out of headers/deps: mm: Optimize header dependencies lib/cpumask: move trivial wrappers around find_bit to the header lib/cpumask: change return types to unsigned where appropriate cpumask: change return types to bool where appropriate lib/bitmap: change type of bitmap_weight to unsigned long lib/bitmap: change return types to bool where appropriate arm: align find_bit declarations with generic kernel iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE) lib/test_bitmap: test the tail after bitmap_to_arr64() lib/bitmap: fix off-by-one in bitmap_to_arr64() lib: test_bitmap: add compile-time optimization/evaluations assertions bitmap: don't assume compiler evaluates small mem*() builtins calls net/ice: fix initializing the bitmap in the switch code bitops: let optimize out non-atomic bitops on compile-time constants ...