Thread (6 messages) 6 messages, 5 authors, 2023-03-22

Re: [PATCH] module/decompress: Never use kunmap() for local un-mappings

From: Luis Chamberlain <hidden>
Date: 2023-03-22 23:24:50
Also in: bpf, live-patching, lkml, llvm

From: Luis Chamberlain <mcgrof@kernel.org>

On Wed, 15 Mar 2023 13:52:56 +0100, Fabio M. De Francesco wrote:
Use kunmap_local() to unmap pages locally mapped with kmap_local_page().

kunmap_local() must be called on the kernel virtual address returned by
kmap_local_page(), differently from how we use kunmap() which instead
expects the mapped page as its argument.

In module_zstd_decompress() we currently map with kmap_local_page() and
unmap with kunmap(). This breaks the code and so it should be fixed.

[...]
Applied, thanks!

[1/1] module/decompress: Never use kunmap() for local un-mappings
      commit: 3c17655ab13704582fe25e8ea3200a9b2f8bf20a

  Luis
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