From: Petr Tesarik <petrtesarik@huaweicloud.com>
To: Christoph Hellwig <hch@lst.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux.dev (open list:DMA MAPPING HELPERS),
linux-kernel@vger.kernel.org (open list)
Cc: Roberto Sassu <roberto.sassu@huawei.com>, petr@tesarici.cz
Subject: [PATCH v1 0/1] swiotlb: Clean up unused code if !CONFIG_DEBUG_FS
Date: Thu, 20 Apr 2023 11:58:57 +0200 [thread overview]
Message-ID: <cover.1681984708.git.petr.tesarik.ext@huawei.com> (raw)
From: Petr Tesarik <petr.tesarik.ext@huawei.com>
While verifying that the swiotlb high water marks are never used
if CONFIG_DEBUG_FS is unset, I guarded the corresponding fields
in strut io_tlb_mem with an #ifdef, but then I ran into a build
failure. This patch tries to clean up the optional debugfs code
in swiotlb.
The patch should be applied to the dma-mapping for-next tree.
Petr Tesarik (1):
swiotlb: Omit total_used and used_hiwater if !CONFIG_DEBUG_FS
include/linux/swiotlb.h | 2 ++
kernel/dma/swiotlb.c | 15 ++++++++++++---
2 files changed, 14 insertions(+), 3 deletions(-)
--
2.25.1
next reply other threads:[~2023-04-20 9:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-20 9:58 Petr Tesarik [this message]
2023-04-20 9:58 ` [PATCH v1 1/1] swiotlb: Omit total_used and used_hiwater " Petr Tesarik
2023-04-20 12:51 ` Christoph Hellwig
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