linux-kernel - [PATCH v5 24/29] compat_ioctl: remove /dev/random commands

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Date:   Tue, 30 Jul 2019 22:01:29 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Theodore Ts'o" <tytso@....edu>
Subject: [PATCH v5 24/29] compat_ioctl: remove /dev/random commands

These are all handled by the random driver, so instead of listing
each ioctl, we can use the generic compat_ptr_ioctl() helper.

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/char/random.c | 1 +
 fs/compat_ioctl.c     | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 5d5ea4ce1442..355dc54576f2 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2106,6 +2106,7 @@ const struct file_operations random_fops = {
 	.write = random_write,
 	.poll  = random_poll,
 	.unlocked_ioctl = random_ioctl,
+	.compat_ioctl = compat_ptr_ioctl,
 	.fasync = random_fasync,
 	.llseek = noop_llseek,
 };
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 10dfe4d80bbd..398268604ab7 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -439,13 +439,6 @@ COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
 COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
 COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
 COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
-/* Big R */
-COMPATIBLE_IOCTL(RNDGETENTCNT)
-COMPATIBLE_IOCTL(RNDADDTOENTCNT)
-COMPATIBLE_IOCTL(RNDGETPOOL)
-COMPATIBLE_IOCTL(RNDADDENTROPY)
-COMPATIBLE_IOCTL(RNDZAPENTCNT)
-COMPATIBLE_IOCTL(RNDCLEARPOOL)
 /* Misc. */
 COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
 COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
-- 
2.20.0