kernel/linux.git/drivers/iio/buffer, branch master

iio: buffer: hw-consumer: remove redundant scan_mask flexible array

2026-03-14T12:10:21+00:00

The scan_mask flexible array member in hw_consumer_buffer duplicates the scan_mask pointer already present in struct iio_buffer. Remove it and allocate the bitmap directly with bitmap_zalloc(), assigning it to buf->buffer.scan_mask. This simplifies the code and there's no need for the flex array allocation. Signed-off-by: Nuno Sá Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

iio: core: Simplify IIO core managed APIs

2026-02-23T21:00:47+00:00

Use devm_add_action_or_reset() instead of devres_alloc() and devres_add(), which works the same. This will simplify the code. There is no functional changes. While at it, inline devm_iio_kfifo_allocate() into its only user. Reviewed-by: Nuno Sá Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

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

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

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. 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

iio: buffer-dmaengine: Fix coding style complains

2025-12-21T12:01:55+00:00

Just making sure checkpatch is happy. No functional change intended. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: buffer-dmaengine: Use the cleanup.h API

2025-12-21T12:01:00+00:00

Make use of the cleanup.h API for locks in order to simplify some code paths. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: buffer-dma: Fix coding style complains

2025-12-21T12:00:27+00:00

Just making sure checkpatch is happy. No functional change intended. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: buffer-dma: Turn iio_dma_buffer_init() void

2025-12-21T11:58:01+00:00

iio_dma_buffer_init() always return 0. Therefore there's no point in returning int. While at it, fix a mismatch between the function declaration and definition regarding the struct device (dma_dev != dev). Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: buffer-dma: Use the cleanup.h API

2025-12-21T11:55:12+00:00

Make use of the cleanup.h API for locks and memory allocation in order to simplify some code paths. Signed-off-by: Nuno Sá Signed-off-by: Jonathan Cameron