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.

Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Ellerman <[email protected]>
Fixes: f4892c68ecc1 ("powerpc/fadump: allocate memory for additional parameters 
early")
Reviewed-by: Hari Bathini <[email protected]>
Signed-off-by: Sourabh Jain <[email protected]>
---

Changelog:

v1 -> v2
 - Added fixes and reviewed-by tag

---
 arch/powerpc/kernel/fadump.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 5782e743fd27..4ebc333dd786 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -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;
 
-- 
2.51.0


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