kernel/linux.git/drivers/ntb/test, branch v7.0-rc7

Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2026-02-21T19:02:58+00:00

Pull kmalloc_obj conversion from Kees Cook: "This does the tree-wide conversion to kmalloc_obj() and friends using coccinelle, with a subsequent small manual cleanup of whitespace alignment that coccinelle does not handle. This uncovered a clang bug in __builtin_counted_by_ref(), so the conversion is preceded by disabling that for current versions of clang. The imminent clang 22.1 release has the fix. I've done allmodconfig build tests for x86_64, arm64, i386, and arm. I did defconfig builds for alpha, m68k, mips, parisc, powerpc, riscv, s390, sparc, sh, arc, csky, xtensa, hexagon, and openrisc" * tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: kmalloc_obj: Clean up after treewide replacements treewide: Replace kmalloc with kmalloc_obj for non-scalar types compiler_types: Disable __builtin_counted_by_ref for Clang

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

ntb/ntb_tool: correct sscanf format for u64 and size_t in tool_peer_mw_trans_write

2026-02-20T22:31:55+00:00

The sscanf() call in tool_peer_mw_trans_write() uses "%lli:%zi" to parse user input into 'u64 addr' and 'size_t wsize'. This is incorrect: - "%lli" expects a signed long long *, but 'addr' is u64 (unsigned). Input like "0x8000000000000000" is misinterpreted as negative, leading to corrupted address values. - "%zi" expects a signed ssize_t *, but 'wsize' is size_t (unsigned). Input of "-1" is successfully parsed and stored as SIZE_MAX (e.g., 0xFFFFFFFFFFFFFFFF), which may cause buffer overflows or infinite loops in subsequent memory operations. Fix by using format specifiers that match the actual variable types: - "%llu" for u64 (supports hex/decimal, standard for kernel u64 parsing) - "%zu" for size_t (standard and safe; rejects negative input) Signed-off-by: yangqixiao Reviewed-by: Dave Jiang Signed-off-by: Jon Mason

Merge tag 'ntb-6.15' of https://github.com/jonmason/ntb

2025-04-04T21:23:07+00:00

Pull ntb fixes from Jon Mason: "Bug fixes for NTB Switchtec driver mw negative shift, Intel NTB link status db, ntb_perf double unmap (in error case), and MSI 64bit arithmetic. Also, add new AMD NTB PCI IDs, update AMD NTB maintainer, and pull in patch to reduce the stack usage in IDT driver" * tag 'ntb-6.15' of https://github.com/jonmason/ntb: ntb_hw_amd: Add NTB PCI ID for new gen CPU ntb: reduce stack usage in idt_scan_mws ntb: use 64-bit arithmetic for the MSI doorbell mask MAINTAINERS: Update AMD NTB maintainers ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk() ntb: intel: Fix using link status DB's ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans

ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk()

2025-03-18T14:33:39+00:00

The function call “dmaengine_unmap_put(unmap)” was used in an if branch. The same call was immediately triggered by a subsequent goto statement. Thus avoid such a call repetition. This issue was detected by using the Coccinelle software. Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support") Cc: stable@vger.kernel.org Signed-off-by: Markus Elfring Signed-off-by: Jon Mason

ntb: ntb_pingpong: Switch to use hrtimer_setup()

2025-02-18T10:19:04+00:00

hrtimer_setup() takes the callback function pointer as argument and initializes the timer completely. Replace hrtimer_init() and the open coded initialization of hrtimer::function with the new setup mechanism. Patch was created by using Coccinelle. Signed-off-by: Nam Cao Signed-off-by: Thomas Gleixner Acked-by: Zack Rusin Link: https://lore.kernel.org/all/2b179e16ab830611fdcb09a33a5a531c9800679b.1738746904.git.namcao@linutronix.de

ntb_perf: Fix printk format

2024-09-20T14:50:38+00:00

The correct printk format is %pa or %pap, but not %pa[p]. Fixes: 99a06056124d ("NTB: ntb_perf: Fix address err in perf_copy_chunk") Signed-off-by: Max Hawking Signed-off-by: Jon Mason

NTB: ntb_tool: Switch to memdup_user_nul() helper

2023-08-18T13:50:06+00:00

Use memdup_user_nul() helper instead of open-coding to simplify the code. Signed-off-by: Ruan Jinjie Reviewed-by: Dave Jiang Reviewed-by: Dan Carpenter Reviewed-by: Serge Semin Signed-off-by: Jon Mason

dtivers: ntb: fix parameter check in perf_setup_dbgfs()

2023-08-18T13:50:06+00:00

Make IS_ERR() judge the debugfs_create_dir() function return in perf_setup_dbgfs(). Signed-off-by: Minjie Du Reviewed-by: Serge Semin Signed-off-by: Jon Mason

ntb: Remove error checking for debugfs_create_dir()

2023-08-18T13:50:06+00:00

It is expected that most callers should _ignore_ the errors return by debugfs_create_dir() in tool_setup_dbgfs() Signed-off-by: Wang Ming Reviewed-by: Dave Jiang Reviewed-by: Dan Carpenter Reviewed-by: Serge Semin Signed-off-by: Jon Mason