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author | Todd Kjos <tkjos@google.com> | 2021-11-30 10:51:51 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-03 14:29:39 +0100 |
commit | 656e01f3ab54afe71bed066996fc2640881e1220 (patch) | |
tree | b8ec47d2e341a8def888f2b65dbf864b8502124c /drivers/w1 | |
parent | 6d98eb95b450a75adb4516a1d33652dc78d2b20c (diff) | |
download | linux-656e01f3ab54afe71bed066996fc2640881e1220.tar.gz |
binder: read pre-translated fds from sender buffer
This patch is to prepare for an up coming patch where we read pre-translated fds from the sender buffer and translate them before copying them to the target. It does not change run time. The patch adds two new parameters to binder_translate_fd_array() to hold the sender buffer and sender buffer parent. These parameters let us call copy_from_user() directly from the sender instead of using binder_alloc_copy_from_buffer() to copy from the target. Also the patch adds some new alignment checks. Previously the alignment checks would have been done in a different place, but this lets us print more useful error messages. Reviewed-by: Martijn Coenen <maco@android.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20211130185152.437403-4-tkjos@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/w1')
0 files changed, 0 insertions, 0 deletions