MIPS: Enable ptrace hw watchpoints on MIPS R6

HARDWARE_WATCHPOINTS isn't being enabled for CPU_MIPSR6, even though it
has an identical hardware watchpoint interface to CPU_MIPSR2, which
prevents ptrace watchpoints from being loaded when executing a ptraced
process even though the watchpoints are described in /proc/cpuinfo.

Enable HARDWARE_WATCHPOINTS for CPU_MIPSR6 too.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12727/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2018c2b0e078f9880bca0d2bb497e2dd271196d5..04c5e9c28fba17a0b2cece34c2d52be08987089d 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1999,7 +1999,7 @@ config MIPS_PGD_C0_CONTEXT
 #
 config HARDWARE_WATCHPOINTS
        bool
-       default y if CPU_MIPSR1 || CPU_MIPSR2
+       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
 
 menu "Kernel type"