The patch titled Subject: dma: kmsan: export kmsan_handle_dma() for modules has been added to the -mm mm-hotfixes-unstable branch. Its filename is dma-kmsan-export-kmsan_handle_dma-for-modules.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Sebastian Andrzej Siewior bigeasy@linutronix.de Subject: dma: kmsan: export kmsan_handle_dma() for modules Date: Tue, 18 Feb 2025 10:14:11 +0100

kmsan_handle_dma() is used by virtio_ring() which can be built as a module. kmsan_handle_dma() needs to be exported otherwise building the virtio_ring fails.

Export kmsan_handle_dma for modules.

Link: https://lkml.kernel.org/r/20250218091411.MMS3wBN9@linutronix.de Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202502150634.qjxwSeJR-lkp@intel.com/ Fixes: 7ade4f10779cb ("dma: kmsan: unpoison DMA mappings") Signed-off-by: Sebastian Andrzej Siewior bigeasy@linutronix.de Cc: Alexander Potapenko glider@google.com Cc: Dmitriy Vyukov dvyukov@google.com Cc: Macro Elver elver@google.com Cc: Peter Zijlstra (Intel) peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/kmsan/hooks.c | 1 + 1 file changed, 1 insertion(+)

--- a/mm/kmsan/hooks.c~dma-kmsan-export-kmsan_handle_dma-for-modules +++ a/mm/kmsan/hooks.c @@ -357,6 +357,7 @@ void kmsan_handle_dma(struct page *page, size -= to_go; } } +EXPORT_SYMBOL_GPL(kmsan_handle_dma);

void kmsan_handle_dma_sg(struct scatterlist *sg, int nents, enum dma_data_direction dir) _

Patches currently in -mm which might be from bigeasy@linutronix.de are

dma-kmsan-export-kmsan_handle_dma-for-modules.patch rcu-provide-a-static-initializer-for-hlist_nulls_head.patch ucount-replace-get_ucounts_or_wrap-with-atomic_inc_not_zero.patch ucount-use-rcu-for-ucounts-lookups.patch ucount-use-rcuref_t-for-reference-counting.patch