swiotlb: Clean up unused code if !CONFIG_DEBUG_FS

[PATCH v1 0/1] swiotlb: Clean up unused code if !CONFIG_DEBUG_FS

Petr Tesarik posted 1 patch 2 years, 8 months ago

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include/linux/swiotlb.h |  2 ++
kernel/dma/swiotlb.c    | 15 ++++++++++++---
2 files changed, 14 insertions(+), 3 deletions(-)

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[PATCH v1 0/1] swiotlb: Clean up unused code if !CONFIG_DEBUG_FS

Posted by Petr Tesarik 2 years, 8 months ago

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(-)

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2.25.1