random: note that RNDGETPOOL was removed in 2.6.9-rc2

RNDGETPOOL was thankfully removed twenty years ago, but it's stuck
around in headers. Probably removing it from uapi headers isn't great in
case there are some weird users out there, but we should at least mark
this as having been removed, to save future readers the same goose chase
I just went on.

Link: https://lore.kernel.org/all/E1By1St-0001TS-Qj@thunk.org/
Link: https://lore.kernel.org/all/Pine.LNX.4.58.0409130937050.4094@ppc970.osdl.org/
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

diff --git a/include/uapi/linux/random.h b/include/uapi/linux/random.h
index 2a3fe4c..1dd047e 100644 (file)
--- a/include/uapi/linux/random.h
+++ b/include/uapi/linux/random.h
@@ -20,7 +20,7 @@
 /* Add to (or subtract from) the entropy count.  (Superuser only.) */
 #define RNDADDTOENTCNT _IOW( 'R', 0x01, int )
 
-/* Get the contents of the entropy pool.  (Superuser only.) */
+/* Get the contents of the entropy pool.  (Superuser only.) (Removed in 2.6.9-rc2.) */
 #define RNDGETPOOL     _IOR( 'R', 0x02, int [2] )
 
 /*