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s390/uv: use EOPNOTSUPP instead of ENOTSUPP 

ENOTSUP is just an internal kernel error and should never reach
userspace. The return value of the share function is not exported to
userspace, but to avoid giving bad examples let us use EOPNOTSUPP:

Suggested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Christian Borntraeger 2019-12-06 08:27:51 +01:00 committed by Vasily Gorbik
parent 0539ad0b22
commit 157309a970
1 changed files with 1 additions and 1 deletions
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2
arch/s390/include/asm/uv.h
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@ -86,7 +86,7 @@ static inline int share(unsigned long addr, u16 cmd)
};
if (!is_prot_virt_guest())
return -ENOTSUPP;
return -EOPNOTSUPP;
/*
* Sharing is page wise, if we encounter addresses that are
* not page aligned, we assume something went wrong. If