cacheinfo: Fix misbehaviours around init_cache_level()

[PATCH -next v2 0/3] cacheinfo: Fix misbehaviours around init_cache_level()

Pierre Gondois posted 3 patches 2 years, 7 months ago

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arch/arm64/kernel/cacheinfo.c | 5 +----
drivers/base/cacheinfo.c      | 2 +-
include/linux/cacheinfo.h     | 2 +-
3 files changed, 3 insertions(+), 6 deletions(-)

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[PATCH -next v2 0/3] cacheinfo: Fix misbehaviours around init_cache_level()

Posted by Pierre Gondois 2 years, 7 months ago

v2:
https://lore.kernel.org/all/20230124123450.321852-1-pierre.gondois@arm.com/
- Split initial patch in 3.
- Add links to static-analysis reports.

Some cases were not correctly evaluated when updating
init_cache_level()'s prototype, in particular if CONFIG_ACPI_PPTT is
not defined. Fix them.

The initial diagnostic was done thanks to:
- the kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@intel.com/
- Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/

Pierre Gondois (3):
  cacheinfo: Initialize variables in fetch_cache_info()
  cacheinfo: Make default acpi_get_cache_info() return an error
  cacheinfo: Remove unused check in init_cache_level()

 arch/arm64/kernel/cacheinfo.c | 5 +----
 drivers/base/cacheinfo.c      | 2 +-
 include/linux/cacheinfo.h     | 2 +-
 3 files changed, 3 insertions(+), 6 deletions(-)

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2.25.1