The patch titled Subject: microblaze: move the ARCH_{DMA,SLAB}_MINALIGN definitions to asm/cache.h has been added to the -mm mm-unstable branch. Its filename is microblaze-move-the-arch_dmaslab_minalign-definitions-to-asm-cacheh.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/microblaze-move-the-arch_dmaslab_minalign-definitions-to-asm-cacheh.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Catalin Marinas <catalin.marinas@xxxxxxx> Subject: microblaze: move the ARCH_{DMA,SLAB}_MINALIGN definitions to asm/cache.h Date: Tue, 13 Jun 2023 16:52:44 +0100 The microblaze architecture defines ARCH_DMA_MINALIGN in asm/page.h. Move it to asm/cache.h to allow a generic ARCH_DMA_MINALIGN definition in linux/cache.h without redefine errors/warnings. While at it, also move ARCH_SLAB_MINALIGN to asm/cache.h for consistency. Link: https://lkml.kernel.org/r/20230613155245.1228274-3-catalin.marinas@xxxxxxx Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Michal Simek <monstr@xxxxxxxxx> Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx> Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> Cc: kernel test robot <lkp@xxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Nicholas Piggin <npiggin@xxxxxxxxx> Cc: Rich Felker <dalias@xxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/microblaze/include/asm/cache.h | 5 +++++ arch/microblaze/include/asm/page.h | 5 ----- 2 files changed, 5 insertions(+), 5 deletions(-) --- a/arch/microblaze/include/asm/cache.h~microblaze-move-the-arch_dmaslab_minalign-definitions-to-asm-cacheh +++ a/arch/microblaze/include/asm/cache.h @@ -18,4 +18,9 @@ #define SMP_CACHE_BYTES L1_CACHE_BYTES +/* MS be sure that SLAB allocates aligned objects */ +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES + +#define ARCH_SLAB_MINALIGN L1_CACHE_BYTES + #endif /* _ASM_MICROBLAZE_CACHE_H */ --- a/arch/microblaze/include/asm/page.h~microblaze-move-the-arch_dmaslab_minalign-definitions-to-asm-cacheh +++ a/arch/microblaze/include/asm/page.h @@ -30,11 +30,6 @@ #ifndef __ASSEMBLY__ -/* MS be sure that SLAB allocates aligned objects */ -#define ARCH_DMA_MINALIGN L1_CACHE_BYTES - -#define ARCH_SLAB_MINALIGN L1_CACHE_BYTES - /* * PAGE_OFFSET -- the first address of the first page of memory. With MMU * it is set to the kernel start address (aligned on a page boundary). _ Patches currently in -mm which might be from catalin.marinas@xxxxxxx are mm-slab-decouple-arch_kmalloc_minalign-from-arch_dma_minalign.patch dma-allow-dma_get_cache_alignment-to-be-overridden-by-the-arch-code.patch mm-slab-simplify-create_kmalloc_cache-args-and-make-it-static.patch mm-slab-limit-kmalloc-minimum-alignment-to-dma_get_cache_alignment.patch drivers-base-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch drivers-gpu-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch drivers-usb-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch drivers-spi-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch dm-crypt-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch iio-core-use-arch_dma_minalign-instead-of-arch_kmalloc_minalign.patch arm64-allow-kmalloc-caches-aligned-to-the-smaller-cache_line_size.patch dma-mapping-force-bouncing-if-the-kmalloc-size-is-not-cache-line-aligned.patch iommu-dma-force-bouncing-if-the-size-is-not-cacheline-aligned.patch mm-slab-reduce-the-kmalloc-minimum-alignment-if-dma-bouncing-possible.patch arm64-enable-arch_want_kmalloc_dma_bounce-for-arm64.patch powerpc-move-the-arch_dma_minalign-definition-to-asm-cacheh.patch microblaze-move-the-arch_dmaslab_minalign-definitions-to-asm-cacheh.patch sh-move-the-arch_dma_minalign-definition-to-asm-cacheh.patch