Re: [PATCH v4 07/15] drivers/usb: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN

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To: Catalin Marinas <catalin.marinas@xxxxxxx>
Subject: Re: [PATCH v4 07/15] drivers/usb: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 19 May 2023 10:41:12 +0100
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Will Deacon <will@xxxxxxxxxx>, Marc Zyngier <maz@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Isaac Manjarres <isaacmanjarres@xxxxxxxxxx>, Saravana Kannan <saravanak@xxxxxxxxxx>, Alasdair Kergon <agk@xxxxxxxxxx>, Daniel Vetter <daniel@xxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, linux-mm@xxxxxxxxx, iommu@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20230518173403.1150549-8-catalin.marinas@arm.com>
References: <20230518173403.1150549-1-catalin.marinas@arm.com> <20230518173403.1150549-8-catalin.marinas@arm.com>

On Thu, May 18, 2023 at 06:33:55PM +0100, Catalin Marinas wrote:
> ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
> operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
> alignment.
> 
> Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

References:
- [PATCH v4 00/15] mm, dma, arm64: Reduce ARCH_KMALLOC_MINALIGN to 8
  - From: Catalin Marinas
- [PATCH v4 07/15] drivers/usb: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
  - From: Catalin Marinas

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