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author | Zhao Liu <zhao1.liu@intel.com> | 2022-10-20 11:38:20 +0300 |
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committer | Wei Liu <wei.liu@kernel.org> | 2022-10-27 13:58:04 +0300 |
commit | 03b9a6e18d325ede28c6dc218cedda53969eb41b (patch) | |
tree | f65da7c7af8048f02da5cc2d35176af04c3a952d /drivers/hv/hv_balloon.c | |
parent | 247f34f7b80357943234f93f247a1ae6b6c3a740 (diff) | |
download | linux-03b9a6e18d325ede28c6dc218cedda53969eb41b.tar.xz |
x86/hyperv: Remove BUG_ON() for kmap_local_page()
The commit 154fb14df7a3c ("x86/hyperv: Replace kmap() with
kmap_local_page()") keeps the BUG_ON() to check if kmap_local_page()
fails.
But in fact, kmap_local_page() always returns a valid kernel address
and won't return NULL here. It will BUG on its own if it fails. [1]
So directly use memcpy_to_page() which creates local mapping to copy.
[1]: https://lore.kernel.org/lkml/YztFEyUA48et0yTt@iweiny-mobl/
Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20221020083820.2341088-1-zhao1.liu@linux.intel.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv/hv_balloon.c')
0 files changed, 0 insertions, 0 deletions