[PATCH 0/2] Fix indirect syscall handler for syscalls with > 4 args

From: James Cowgill <James.Cowgill@imgtec.com>
To: Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
Cc: James.Cowgill@imgtec.com
Subject: [PATCH 0/2] Fix indirect syscall handler for syscalls with > 4 args
Date: Fri, 31 Mar 2017 17:09:57 +0100	[thread overview]
Message-ID: <20170331160959.3192-1-James.Cowgill@imgtec.com> (raw)
Message-ID: <20170331160957.OjrEP-TJQFauKVcB-seW3LRQfVmveZGPsMsXYZ0Eefw@z> (raw)

These two patches fix a corner case in the o32 indirect syscall handler where
incorrect arguments might get passed to the underlying syscall function if more
than 4 arguments are passed to a restartable syscall.

The first patch hopefully removes the last use of pt_regs for reading syscall
arguments and the second patch removes the special pt_regs handling in the
indrect syscall handler which is no longer needed.

James Cowgill (2):
  MIPS: opt into HAVE_COPY_THREAD_TLS
  MIPS: Remove pt_regs adjustments in indirect syscall handler

 arch/mips/Kconfig              |  1 +
 arch/mips/kernel/process.c     |  6 +++---
 arch/mips/kernel/scall32-o32.S | 11 -----------
 arch/mips/kernel/scall64-o32.S |  6 ------
 4 files changed, 4 insertions(+), 20 deletions(-)

-- 
2.11.0