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kernel-doc: xforms: support __SYSFS_FUNCTION_ALTERNATIVE()

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Add support for __SYSFS_FUNCTION_ALTERNATIVE() to create a union of its
members (as though CONFIG_CFI is unset).

Fixes these docs build warnings:

WARNING: include/linux/device.h:117 Invalid param: __SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*show)(struct device *dev, struct device_attribute *attr, char *buf)
WARNING: include/linux/device.h:117 struct member '__SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*show' not described in 'device_attribute'
WARNING: include/linux/device.h:117 Invalid param: __SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*store)(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
WARNING: include/linux/device.h:117 struct member '__SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*store' not described in 'device_attribute'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260623190006.406571-1-rdunlap@infradead.org>
This commit is contained in:
Randy Dunlap 2026-06-23 12:00:04 -07:00 committed by Jonathan Corbet
parent fa34b01aa0
commit 3b61bb3fe1
1 changed files with 1 additions and 0 deletions
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1
tools/lib/python/kdoc/xforms_lists.py
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@ -49,6 +49,7 @@ class CTransforms:
(CMatch("DEFINE_DMA_UNMAP_ADDR"), r"dma_addr_t \1"),
(CMatch("DEFINE_DMA_UNMAP_LEN"), r"__u32 \1"),
(CMatch("VIRTIO_DECLARE_FEATURES"), r"union { u64 \1; u64 \1_array[VIRTIO_FEATURES_U64S]; }"),
(CMatch("__SYSFS_FUNCTION_ALTERNATIVE"), r"union { \1+ }"),
(CMatch("__attribute__"), ""),
#