On Tue, 04 Jul 2023 10:37:15 +0530, Sourabh Jain wrote:

In case fadump_reserve_mem() fails to reserve memory, the
reserve_dump_area_size variable will retain the reserve area size. This
will lead to /sys/kernel/fadump/mem_reserved node displaying an incorrect
memory reserved by fadump.

To fix this problem, reserve dump area size variable is set to 0 if fadump
failed to reserve memory.

[...]

Applied to powerpc/next.

[1/1] powerpc/fadump: reset dump area size if fadump memory reserve fails
      https://git.kernel.org/powerpc/c/d1eb75e0dfed80d2d85b664e28a39f65b290ab55

cheers