kernel/linux.git/drivers/thunderbolt, branch master

Merge tag 'thunderbolt-for-v7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

2026-04-10T11:10:28+00:00

Mika writes: thunderbolt: Changes for v7.1 merge window This includes following USB4/Thunderbolt changes for the v7.1 merge window: - Disable CL-states for Titan Ridge based devices with older firmware. - MAINTAINER update. - Simplify allocation of various structures with kzalloc_flex(). All these have been in linux-next with no reported issues. * tag 'thunderbolt-for-v7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: thunderbolt: tunnel: Simplify allocation thunderbolt: Use kzalloc_flex() for struct tb_path allocation thunderbolt: dma_port: kmalloc_array + kzalloc to flex MAINTAINERS: Remove bouncing maintainer, Mika takes over DMA test driver thunderbolt: Disable CLx on Titan Ridge-based devices with old firmware thunderbolt: Read router NVM version before applying quirks

thunderbolt: tunnel: Simplify allocation

2026-04-07T07:00:26+00:00

Use a flexible array member and kzalloc_flex to combine allocations. Add __counted_by for extra runtime analysis. Move counting variable assignment after allocation. kzalloc_flex with GCC >= 15 does this automatically. Signed-off-by: Rosen Penev Signed-off-by: Mika Westerberg

thunderbolt: Use kzalloc_flex() for struct tb_path allocation

2026-03-23T05:49:43+00:00

Simplifies allocation of struct tb_path by using a flexible array member. Also added __counted_by for extra runtime analysis. Signed-off-by: Rosen Penev Reviewed-by: Kees Cook Signed-off-by: Mika Westerberg

thunderbolt: dma_port: kmalloc_array + kzalloc to flex

2026-03-18T13:31:56+00:00

Use a single allocation with a flexible array member. Simplifies allocation and freeing. Signed-off-by: Rosen Penev Signed-off-by: Mika Westerberg

thunderbolt: Fix property read in nhi_wake_supported()

2026-03-09T11:36:54+00:00

device_property_read_foo() returns 0 on success and only then modifies 'val'. Currently, val is left uninitialized if the aforementioned function returns non-zero, making nhi_wake_supported() return true almost always (random != 0) if the property is not present in device firmware. Invert the check to make it make sense. Fixes: 3cdb9446a117 ("thunderbolt: Add support for Intel Ice Lake") Cc: stable@vger.kernel.org Signed-off-by: Konrad Dybcio Signed-off-by: Mika Westerberg

thunderbolt: Disable CLx on Titan Ridge-based devices with old firmware

2026-03-02T06:51:58+00:00

Thunderbolt 3 devices based on Titan Ridge routers with NVM firmware version < 0x65 have been observed to become unstable when CL states are enabled. This can lead to link disconnect events and the device failing to enumerate. Enable CLx on Titan Ridge only when the running NVM firmware version is >= 0x65. Signed-off-by: Rene Sapiens Signed-off-by: Mika Westerberg

thunderbolt: Read router NVM version before applying quirks

2026-03-02T06:51:58+00:00

The router NVM version is currently only available after the NVMem devices have been registered. This is too late for firmware-dependent quirks that are evaluated during tb_switch_add() before device registration. Split router NVM handling into two phases: - tb_switch_nvm_init() allocates the NVM object and reads the version - tb_switch_nvm_add() registers the NVMem devices using the pre-read NVM This makes the NVM major/minor version available before tb_check_quirks() without changing when the NVMem devices are registered. Signed-off-by: Rene Sapiens Signed-off-by: Mika Westerberg

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00+00:00

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

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