diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2019-11-12 21:40:33 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-11-16 11:24:06 +0100 |
| commit | 111e7b15cf10f6e973ccf537c70c66a5de539060 (patch) | |
| tree | 93f6a063e7829376797a00750c338338be0eee7d /arch/x86/kernel/process.c | |
| parent | a24ca9976843156eabbc5f2d798954b5674d1b61 (diff) | |
x86/ioperm: Extend IOPL config to control ioperm() as well
If iopl() is disabled, then providing ioperm() does not make much sense.
Rename the config option and disable/enable both syscalls with it. Guard
the code with #ifdefs where appropriate.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 8a844a5d5ae8..7964d7db9366 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -322,6 +322,7 @@ void arch_setup_new_exec(void) } } +#ifdef CONFIG_X86_IOPL_IOPERM static inline void tss_invalidate_io_bitmap(struct tss_struct *tss) { /* @@ -409,6 +410,9 @@ void tss_update_io_bitmap(void) tss_invalidate_io_bitmap(tss); } } +#else /* CONFIG_X86_IOPL_IOPERM */ +static inline void switch_to_bitmap(unsigned long tifp) { } +#endif #ifdef CONFIG_SMP |