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author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-19 11:06:50 +0000 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-03 21:22:18 +1100 |
commit | fb05121fd6a20f0830ff2a4420c51af6ca4ac6e7 (patch) | |
tree | 60661671efe604c38eef1f701e04aeb6b4236c7e /kernel | |
parent | 5cd29b1fd3e8f2b45fe6d011588d832417defe31 (diff) |
signal: Add unsafe_get_compat_sigset()
In the same way as commit 14026b94ccfe ("signal: Add
unsafe_put_compat_sigset()"), this time add
unsafe_get_compat_sigset() macro which is the 'unsafe'
version of get_compat_sigset()
For the bigendian, use unsafe_get_user() directly
to avoid intermediate copy through the stack.
For the littleendian, use a straight unsafe_copy_from_user().
This commit adds the generic fallback for unsafe_copy_from_user().
Architectures wanting to use unsafe_get_compat_sigset() have to
make sure they have their own unsafe_copy_from_user().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b05bf434ee13c76bc9df5f02653a10db5e7b54e5.1616151715.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions