6.17-stable review patch. If anyone has any objections, please let me know.
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From: Sourabh Jain sourabhjain@linux.ibm.com
[ Upstream commit 0843ba458439f38efdc14aa359c14ad0127edb01 ]
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: f4892c68ecc1 ("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: f4892c68ecc1 ("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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 5782e743fd270..4ebc333dd786f 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;