Messages in this thread | | | Subject | Re: [PATCH v2] sh: Implement __get_user_u64() required for 64-bit get_user() | From | John Paul Adrian Glaubitz <> | Date | Wed, 3 Jun 2020 09:20:08 +0200 |
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Hi!
On 5/31/20 12:47 PM, John Paul Adrian Glaubitz wrote: > Changes since v1: > - Replace single mov instruction for exception handling > in case of invalid load
Yutaka Niibe has had a look at my patch and he says, we might have to add an entry for the fault handling of the upper word.
Quote:
> (1) I think that there is possibility that the second access to user > space fails (while the first access succeeds). IIUC, it's good have > an entry in __ex_tables for the second access too, like: > ".long 1b+2, 3b\n\t" > I don't know if the expression "1b+2" is correct, my intention is > detecting the failure in the seccond access.
Comments?
@Sato-san: Can you comment on the patch as well?
Thanks, Adrian
-- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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