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powerpc/fadump: skip parameter area allocation when fadump is disabled

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Fadump allocates memory to pass additional kernel command-line argument
to the fadump kernel. However, this allocation is not needed when fadump
is disabled. So avoid allocating memory for the additional parameter
area in such cases.

Fixes: f4892c68ec ("powerpc/fadump: allocate memory for additional parameters early")
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Fixes: f4892c68ec ("powerpc/fadump: allocate memory for additional  parameters early")
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20251008032934.262683-1-sourabhjain@linux.ibm.com
This commit is contained in:
Sourabh Jain 2025-10-08 08:59:34 +05:30 • committed by Madhavan Srinivasan
parent 2743cf75f7
commit 0843ba4584
1 changed files with 3 additions and 0 deletions
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3
arch/powerpc/kernel/fadump.c
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@ -1747,6 +1747,9 @@ void __init fadump_setup_param_area(void)
{
phys_addr_t range_start, range_end;
if (!fw_dump.fadump_enabled)
return;
if (!fw_dump.param_area_supported || fw_dump.dump_active)
return;