MIPS: SEAD3: Nuke PIC32 I2C driver.

[sfrench/cifs-2.6.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index 0eae9df35b884190f7f988702c64158b9a66cda0..05d7a8a458d5850c181e527c2039904c66239de5 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -323,6 +323,17 @@ config HAVE_ARCH_SECCOMP_FILTER
            results in the system call being skipped immediately.
          - seccomp syscall wired up
 
+         For best performance, an arch should use seccomp_phase1 and
+         seccomp_phase2 directly.  It should call seccomp_phase1 for all
+         syscalls if TIF_SECCOMP is set, but seccomp_phase1 does not
+         need to be called from a ptrace-safe context.  It must then
+         call seccomp_phase2 if seccomp_phase1 returns anything other
+         than SECCOMP_PHASE1_OK or SECCOMP_PHASE1_SKIP.
+
+         As an additional optimization, an arch may provide seccomp_data
+         directly to seccomp_phase1; this avoids multiple calls
+         to the syscall_xyz helpers for every syscall.
+
 config SECCOMP_FILTER
        def_bool y
        depends on HAVE_ARCH_SECCOMP_FILTER && SECCOMP && NET