scsi: megaraid_sas: Simplify compat_ioctl handling

There have been several attempts to fix serious problems in the compat
handling in megasas_mgmt_compat_ioctl_fw(), and it also uses the
compat_alloc_user_space() function.

Folding the compat handling into the regular ioctl function with
in_compat_syscall() simplifies it a lot and avoids some of the remaining
problems:

 - missing handling of unaligned pointers

 - overflowing the ioc->frame.raw array from invalid input

 - compat_alloc_user_space()

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

0 files changed, 0 insertions, 0 deletions