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| author | Marcin Nowakowski <marcin.nowakowski@imgtec.com> | 2016-11-23 14:43:43 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-01-03 16:34:44 +0100 |
| commit | 269aa43aad0f96673478fe2446abe54d7ad42e8f (patch) | |
| tree | 838c29e4e75dba68e2117721495d3bae6217a182 /arch/mips/kernel/setup.c | |
| parent | MIPS: elfcore: add correct copy_regs implementations (diff) | |
| download | linux-269aa43aad0f96673478fe2446abe54d7ad42e8f.tar.xz linux-269aa43aad0f96673478fe2446abe54d7ad42e8f.zip | |
MIPS: Do not request resources for crashkernel if one isn't defined
When KEXEC is enabled but crashkernel details are not passed through the
kernel commandline unnecessary resources are requested (start==end==0)
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14607/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/setup.c')
| -rw-r--r-- | arch/mips/kernel/setup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index f66e5ce505b2..0058feaa65e5 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -672,6 +672,9 @@ static void __init request_crashkernel(struct resource *res) { int ret; + if (crashk_res.start == crashk_res.end) + return; + ret = request_resource(res, &crashk_res); if (!ret) pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n", |