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| author | Sourabh Jain <sourabhjain@linux.ibm.com> | 2025-10-08 08:59:34 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-23 16:24:32 +0200 |
| commit | d4ab141558a040df774c9cd4b148facf90738590 (patch) | |
| tree | c93b2de591845b4fb9738b864368735b7670087f /arch | |
| parent | 295f35cd6cc69225855f1d1f3b927a0c351b0c91 (diff) | |
| download | linux-d4ab141558a040df774c9cd4b148facf90738590.tar.gz linux-d4ab141558a040df774c9cd4b148facf90738590.tar.bz2 linux-d4ab141558a040df774c9cd4b148facf90738590.zip | |
powerpc/fadump: skip parameter area allocation when fadump is disabled
[ 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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 3 |
1 files changed, 3 insertions, 0 deletions
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; |