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author | Peng Liu <liupeng256@huawei.com> | 2022-04-29 14:36:57 -0700 |
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committer | akpm <akpm@linux-foundation.org> | 2022-04-29 14:36:57 -0700 |
commit | f81f6e4b5eedb41045fd0ccc8ea31f4f07ce0993 (patch) | |
tree | 7f049028b7db18a55cfbb6a05836defacbdc7c96 /arch/ia64 | |
parent | f87442f407af80dac4dc81c8a7772b71b36b2e09 (diff) | |
download | linux-f81f6e4b5eedb41045fd0ccc8ea31f4f07ce0993.tar.gz linux-f81f6e4b5eedb41045fd0ccc8ea31f4f07ce0993.tar.bz2 linux-f81f6e4b5eedb41045fd0ccc8ea31f4f07ce0993.zip |
hugetlb: fix return value of __setup handlers
When __setup() return '0', using invalid option values causes the entire
kernel boot option string to be reported as Unknown. Hugetlb calls
__setup() and will return '0' when set invalid parameter string.
The following phenomenon is observed:
cmdline:
hugepagesz=1Y hugepages=1
dmesg:
HugeTLB: unsupported hugepagesz=1Y
HugeTLB: hugepages=1 does not follow a valid hugepagesz, ignoring
Unknown kernel command line parameters "hugepagesz=1Y hugepages=1"
Since hugetlb will print warning/error information before return for
invalid parameter string, just use return '1' to avoid print again.
Link: https://lkml.kernel.org/r/20220413032915.251254-4-liupeng256@huawei.com
Signed-off-by: Peng Liu <liupeng256@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liu Yuntao <liuyuntao10@huawei.com>
Cc: Zhenguo Yao <yaozhenguo1@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/ia64')
0 files changed, 0 insertions, 0 deletions