tree 8622be6324b92dd01d403c6cabdf7ce8455f5d35
parent 4931d2b979c8b50cb9202d2f7078e6c1d57270f8
parent 2c85ba200aa3653452d99b0e386d1367af6c8747
author Tom Rini <trini@konsulko.com> 1742261976 -0600
committer Tom Rini <trini@konsulko.com> 1742261976 -0600

Merge patch series "lmb: miscellaneous fixes and improvements"

Sughosh Ganu <sughosh.ganu@linaro.org> says:

The patch series contains some fixes and improvements in the lmb
code, along with addition of corresponding test cases for the changes
made.

The lmb_reserve() function currently does not check if the requested
reservation would overlap with existing reserved regions. While some
scenarios are being handled, some corner cases still exist. These are
being handled by patch 1, along with adding test cases for these
scenarios.

Patch 2 is handling the case of reserving a new region of memory, but
that region overlaps with an existing region. The current code only
handles one particular scenario, but prints a message for the other
scenario of an encompassing overlap and returns back. The patch
handles the encompassing overlap.

Patch 3 is an improvement whereby we allow coalescing a newly reserved
region with an existing region. The current code exits this check
prematurely.

Patch 4 is removing a now superfluous check for overlapping regions
with flag other than LMB_NONE. This now gets handled at an earlier
point in lmb_reserve().

Patch 5 is clubbing the functionality to check if two regions are
adjacent, or overlap, allowing some code re-use.

Patch 6 is optimising the lmb_alloc() function by having it call
_lmb_alloc_base() directly.

Link: https://lore.kernel.org/r/20250303133231.405279-1-sughosh.ganu@linaro.org