diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-08-07 03:32:30 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-08-14 11:59:33 +0400 |
| commit | 9184289c979e78ce466993b53fc951633441e571 (patch) | |
| tree | 461e8c512c9fc4f960005af5acf89f5135bbb82b /arch/xtensa/Kconfig | |
| parent | 3cfc096e4c4fbc234634cf8a30d40348a25fc9ba (diff) | |
xtensa: deprecate fast_xtensa and fast_spill_registers syscalls
These syscalls are not used by userspace tools for some time now, and
they have issues when called with invalid arguments. It's not worth
changing signal delivery mechanism as we don't expect any new users for
these syscalls. Let's keep them for backwards compatibility under #ifdef,
disabled by default.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/Kconfig')
| -rw-r--r-- | arch/xtensa/Kconfig | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 3d83c29c9232..49c6c3d94449 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -238,6 +238,32 @@ config HIGHMEM If unsure, say Y. +config FAST_SYSCALL_XTENSA + bool "Enable fast atomic syscalls" + default n + help + fast_syscall_xtensa is a syscall that can make atomic operations + on UP kernel when processor has no s32c1i support. + + This syscall is deprecated. It may have issues when called with + invalid arguments. It is provided only for backwards compatibility. + Only enable it if your userspace software requires it. + + If unsure, say N. + +config FAST_SYSCALL_SPILL_REGISTERS + bool "Enable spill registers syscall" + default n + help + fast_syscall_spill_registers is a syscall that spills all active + register windows of a calling userspace task onto its stack. + + This syscall is deprecated. It may have issues when called with + invalid arguments. It is provided only for backwards compatibility. + Only enable it if your userspace software requires it. + + If unsure, say N. + endmenu config XTENSA_CALIBRATE_CCOUNT |