linux-kernel - [PATCH] [24/30] x86_64: Shut up warnings for vfat compat ioctls on other file systems

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Message-Id: <20070501035822.B3FC613CAF@wotan.suse.de>
Date:	Tue,  1 May 2007 05:58:22 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	patches@...-64.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [24/30] x86_64: Shut up warnings for vfat compat ioctls on other file systems


vfat implements compat handlers for these ioctls, but when they
were executed on other file systems the kernel would still complain
about an unknown compat ioctl.  Just declare them as compatible
and let them be rejected when not needed by the normal path.

This makes wine runs a lot quieter

Signed-off-by: Andi Kleen <ak@...e.de>

---
 fs/compat_ioctl.c |    9 +++++++++
 1 file changed, 9 insertions(+)

Index: linux/fs/compat_ioctl.c
===================================================================
--- linux.orig/fs/compat_ioctl.c
+++ linux/fs/compat_ioctl.c
@@ -2627,6 +2627,15 @@ COMPATIBLE_IOCTL(LPRESET)
 /*LPGETSTATS not implemented, but no kernels seem to compile it in anyways*/
 COMPATIBLE_IOCTL(LPGETFLAGS)
 HANDLE_IOCTL(LPSETTIMEOUT, lp_timeout_trans)
+
+/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
+   but we don't want warnings on other file systems. So declare
+   them as compatible here. */
+#define VFAT_IOCTL_READDIR_BOTH32       _IOR('r', 1, struct compat_dirent[2])
+#define VFAT_IOCTL_READDIR_SHORT32      _IOR('r', 2, struct compat_dirent[2])
+
+IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
+IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
 };
 
 int ioctl_table_size = ARRAY_SIZE(ioctl_start);
-
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