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Date: Fri, 7 Oct 2022 23:53:59 -0600
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: linux-kernel@...r.kernel.org, patches@...ts.linux.dev
Cc: "Jason A. Donenfeld" <Jason@...c4.com>,
Andreas Noever <andreas.noever@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Borislav Petkov <bp@...en8.de>,
Catalin Marinas <catalin.marinas@....com>,
Christoph Böhmwalder
<christoph.boehmwalder@...bit.com>, Christoph Hellwig <hch@....de>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Daniel Borkmann <daniel@...earbox.net>,
Dave Airlie <airlied@...hat.com>,
Dave Hansen <dave.hansen@...ux.intel.com>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Florian Westphal <fw@...len.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"H . Peter Anvin" <hpa@...or.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Helge Deller <deller@....de>,
Herbert Xu <herbert@...dor.apana.org.au>,
Huacai Chen <chenhuacai@...nel.org>,
Hugh Dickins <hughd@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
"James E . J . Bottomley" <jejb@...ux.ibm.com>,
Jan Kara <jack@...e.com>, Jason Gunthorpe <jgg@...pe.ca>,
Jens Axboe <axboe@...nel.dk>,
Johannes Berg <johannes@...solutions.net>,
Jonathan Corbet <corbet@....net>,
Jozsef Kadlecsik <kadlec@...filter.org>,
KP Singh <kpsingh@...nel.org>,
Kees Cook <keescook@...omium.org>,
Marco Elver <elver@...gle.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Michael Ellerman <mpe@...erman.id.au>,
Pablo Neira Ayuso <pablo@...filter.org>,
Paolo Abeni <pabeni@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Richard Weinberger <richard@....at>,
Russell King <linux@...linux.org.uk>,
Theodore Ts'o <tytso@....edu>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Thomas Gleixner <tglx@...utronix.de>,
Thomas Graf <tgraf@...g.ch>,
Ulf Hansson <ulf.hansson@...aro.org>,
Vignesh Raghavendra <vigneshr@...com>,
WANG Xuerui <kernel@...0n.name>, Will Deacon <will@...nel.org>,
Yury Norov <yury.norov@...il.com>,
dri-devel@...ts.freedesktop.org, kasan-dev@...glegroups.com,
kernel-janitors@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-block@...r.kernel.org,
linux-crypto@...r.kernel.org, linux-doc@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-media@...r.kernel.org,
linux-mips@...r.kernel.org, linux-mm@...ck.org,
linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org,
linux-nvme@...ts.infradead.org, linux-parisc@...r.kernel.org,
linux-rdma@...r.kernel.org, linux-s390@...r.kernel.org,
linux-um@...ts.infradead.org, linux-usb@...r.kernel.org,
linux-wireless@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
loongarch@...ts.linux.dev, netdev@...r.kernel.org,
sparclinux@...r.kernel.org, x86@...nel.org
Subject: [PATCH v5 7/7] prandom: remove unused functions
With no callers left of prandom_u32() and prandom_bytes(), as well as
get_random_int(), remove these deprecated wrappers, in favor of
get_random_u32() and get_random_bytes().
Reviewed-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
---
drivers/char/random.c | 11 +++++------
include/linux/prandom.h | 12 ------------
include/linux/random.h | 5 -----
3 files changed, 5 insertions(+), 23 deletions(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 01acf235f263..2fe28eeb2f38 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -97,7 +97,7 @@ MODULE_PARM_DESC(ratelimit_disable, "Disable random ratelimit suppression");
* Returns whether or not the input pool has been seeded and thus guaranteed
* to supply cryptographically secure random numbers. This applies to: the
* /dev/urandom device, the get_random_bytes function, and the get_random_{u8,
- * u16,u32,u64,int,long} family of functions.
+ * u16,u32,u64,long} family of functions.
*
* Returns: true if the input pool has been seeded.
* false if the input pool has not been seeded.
@@ -161,15 +161,14 @@ EXPORT_SYMBOL(wait_for_random_bytes);
* u16 get_random_u16()
* u32 get_random_u32()
* u64 get_random_u64()
- * unsigned int get_random_int()
* unsigned long get_random_long()
*
* These interfaces will return the requested number of random bytes
* into the given buffer or as a return value. This is equivalent to
- * a read from /dev/urandom. The u8, u16, u32, u64, int, and long
- * family of functions may be higher performance for one-off random
- * integers, because they do a bit of buffering and do not invoke
- * reseeding until the buffer is emptied.
+ * a read from /dev/urandom. The u8, u16, u32, u64, long family of
+ * functions may be higher performance for one-off random integers,
+ * because they do a bit of buffering and do not invoke reseeding
+ * until the buffer is emptied.
*
*********************************************************************/
diff --git a/include/linux/prandom.h b/include/linux/prandom.h
index 78db003bc290..e0a0759dd09c 100644
--- a/include/linux/prandom.h
+++ b/include/linux/prandom.h
@@ -12,18 +12,6 @@
#include <linux/percpu.h>
#include <linux/random.h>
-/* Deprecated: use get_random_u32 instead. */
-static inline u32 prandom_u32(void)
-{
- return get_random_u32();
-}
-
-/* Deprecated: use get_random_bytes instead. */
-static inline void prandom_bytes(void *buf, size_t nbytes)
-{
- return get_random_bytes(buf, nbytes);
-}
-
struct rnd_state {
__u32 s1, s2, s3, s4;
};
diff --git a/include/linux/random.h b/include/linux/random.h
index 08322f700cdc..147a5e0d0b8e 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -42,10 +42,6 @@ u8 get_random_u8(void);
u16 get_random_u16(void);
u32 get_random_u32(void);
u64 get_random_u64(void);
-static inline unsigned int get_random_int(void)
-{
- return get_random_u32();
-}
static inline unsigned long get_random_long(void)
{
#if BITS_PER_LONG == 64
@@ -100,7 +96,6 @@ declare_get_random_var_wait(u8, u8)
declare_get_random_var_wait(u16, u16)
declare_get_random_var_wait(u32, u32)
declare_get_random_var_wait(u64, u32)
-declare_get_random_var_wait(int, unsigned int)
declare_get_random_var_wait(long, unsigned long)
#undef declare_get_random_var
--
2.37.3
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