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-rw-r--r--include/asm-powerpc/machdep.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 71c6e7eb2a26..cc7c17f16a9a 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -99,7 +99,7 @@ struct machdep_calls {
#endif /* CONFIG_PPC64 */
int (*probe)(void);
- void (*setup_arch)(void);
+ void (*setup_arch)(void); /* Optional, may be NULL */
void (*init_early)(void);
/* Optional, may be NULL. */
void (*show_cpuinfo)(struct seq_file *m);