linux-kernel - [PATCH v3 22/26] compat_ioctl: remove /dev/random commands

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Date:   Tue, 16 Apr 2019 22:28:07 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     linux-fsdevel@...r.kernel.org, y2038@...ts.linaro.org,
        linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Theodore Ts'o" <tytso@....edu>
Subject: [PATCH v3 22/26] compat_ioctl: remove /dev/random commands

These are all handled by the random driver, so instead of listing
each ioctl, we can just use the same function to deal with both
native and compat commands.

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 38c6d1af6d1c..4f397c70d89b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2025,6 +2025,7 @@ 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 bae7b38a881f..78144a599f36 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -380,13 +380,6 @@ 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