[RFC PATCH 0/2] init: make sure syscall arguments are marked __user where needed

From: H Hartley Sweeten
Date: Mon Apr 16 2012 - 20:33:47 EST

When using syscall routines in the kernel, some of the arguments
should be user pointers but are missing the __user markup. This
produces a number of sparse warnings of the format:

warning: incorrect type in argument 1 (different address spaces)
expected char [noderef] <asn:1>*dev_name
got char *name

Wrap the syscall routines in the private do_mounts.h header so that
the appropriate __user markups are added for the init mount code.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

init: introduce private syscall wrappers for non-user space pointers
init: use private syscall wrappers for non-user space pointers

init/do_mounts.c | 14 +++---
init/do_mounts.h | 107 ++++++++++++++++++++++++++++++++++++++++++++++-
init/do_mounts_initrd.c | 28 ++++++------
init/do_mounts_md.c | 6 +-
init/do_mounts_rd.c | 22 +++++-----
init/initramfs.c | 54 ++++++++++++-----------
init/noinitramfs.c | 9 ++--
7 files changed, 173 insertions(+), 67 deletions(-)
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