qemu/0020-linux-user-Ignore-broken-loop-ioctl.patch

From 0dbc0c5f126ca20f6a8606abf8f7a714fd61788e Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 12 Jun 2012 04:41:10 +0200
Subject: [PATCH] linux-user: Ignore broken loop ioctl

During invocations of losetup, we run into an ioctl that doesn't
exist. However, because of that we output an error, which then
screws up the kiwi logic around that call.

So let's silently ignore that bogus ioctl.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 linux-user/ioctls.h       |    1 +
 linux-user/linux_loop.h   |    1 +
 linux-user/syscall.c      |    7 +++++++
 linux-user/syscall_defs.h |    1 +
 4 Dateien geändert, 10 Zeilen hinzugefügt(+)

diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 6af0cb7..bb76c56 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -328,6 +328,7 @@
   IOCTL(LOOP_SET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64)))
   IOCTL(LOOP_GET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64)))
   IOCTL(LOOP_CHANGE_FD, 0, TYPE_INT)
+  IOCTL_SPECIAL(LOOP_BOGUS_CMD, 0, do_ioctl_fail, TYPE_INT)
 
   IOCTL(MTIOCTOP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_mtop)))
   IOCTL(MTIOCGET, IOC_R, MK_PTR(MK_STRUCT(STRUCT_mtget)))
diff --git a/linux-user/linux_loop.h b/linux-user/linux_loop.h
index 8974caa..810ae61 100644
--- a/linux-user/linux_loop.h
+++ b/linux-user/linux_loop.h
@@ -91,5 +91,6 @@ struct loop_info64 {
 #define LOOP_SET_STATUS64	0x4C04
 #define LOOP_GET_STATUS64	0x4C05
 #define LOOP_CHANGE_FD		0x4C06
+#define LOOP_BOGUS_CMD		0x4C82
 
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 30ee613..d62e9e6 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3682,6 +3682,13 @@ out:
     return ret;
 }
 
+static abi_long do_ioctl_fail(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
+                              abi_long cmd, abi_long arg)
+{
+    /* Fail silently */
+    return -EINVAL;
+}
+
 static IOCTLEntry ioctl_entries[] = {
 #define IOCTL(cmd, access, ...) \
     { TARGET_ ## cmd, cmd, #cmd, access, 0, {  __VA_ARGS__ } },
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 8644f87..d708131 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -1016,6 +1016,7 @@ struct target_pollfd {
 #define TARGET_LOOP_SET_STATUS64      0x4C04
 #define TARGET_LOOP_GET_STATUS64      0x4C05
 #define TARGET_LOOP_CHANGE_FD         0x4C06
+#define TARGET_LOOP_BOGUS_CMD         0x4C82
 
 /* fb ioctls */
 #define TARGET_FBIOGET_VSCREENINFO    0x4600