linux-next.git - Linux kernel latest source

Age	Commit message (Collapse)	Author
2026-09-28	selftests: Add additional kernel functions to tools/include/	Jason Gunthorpe
	These are needed by the VFIO mlx5 selftest in the following patches, which includes some headers from mlx5 and also needs a few more MMIO-related features. - DECLARE_FLEX_ARRAY in new tools/include/linux/stddef.h (wraps existing __DECLARE_FLEX_ARRAY from uapi/linux/stddef.h) - dma_wmb/dma_rmb barriers: x86 uses compiler barrier (DMA-coherent), arm64 uses dmb oshst/oshld (outer-shareable for device visibility), generic fallback uses wmb/rmb - ioread32be/iowrite32be in tools/include/asm-generic/io.h for big-endian MMIO register access Assisted-by: Claude:claude-opus-4.6 Reviewed-by: David Matlack <dmatlack@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/5-v7-c6d30e8ce1e4+3dfa6-mlx5st_jgg@nvidia.com Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-08-27	tools headers: Import asm-generic MMIO helpers	David Matlack
	Import the asm-generic MMIO helper functions from the kernel headers into tools/include/. The top-level include is <linux/io.h> which then includes the arch-specific <asm/io.h>, which then includes <asm-generic/io.h>. This layout is chosen to match the kernel header layout and to appease checkpatch.pl (which warns against including <asm/io.h> or <asm-generic/io.h> directly). Changes made when importing: - Add missing includes at the top. - Stub out mmiowb_set_pending(). - Stub out _THIS_IP_. - Stub out log_*_mmio() calls. - Drop the CONFIG_64BIT checks, since tools/include/linux/types.h always defines u64. Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-16-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>