lkml.org 
[lkml]   [2012]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectQuestion about do_mmap changes
Al,

In commit e3fc629d7bb70848fbf479688a66d4e76dff46ac in 3.5-rc1, you change
do_mmap() to static, and use do_mmap_pgoff() instaed. The VirtualBox kernel
module calls do_mmap(), and no longer compiles. I fixed the compile problem with
the patch

Index: vboxhost/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
===================================================================
--- vboxhost.orig/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
+++ vboxhost/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
@@ -65,6 +65,13 @@
# define VBOX_USE_PAE_HACK
#endif

+/*
+ * 3.5+ kernels no longer have do_mmap(). They need to call
+ * do_mmap_pgoff() instead.
+ */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)
+#define do_mmap do_mmap_pgoff
+#endif

/*******************************************************************************
* Structures and Typedefs
================================
Although the code now compiles OK, the link step results in

WARNING: "do_mmap_pgoff" [/usr/share/virtualbox/src/vboxhost/vboxdrv/vboxdrv.ko]
undefined!
WARNING: "do_munmap" [/usr/share/virtualbox/src/vboxhost/vboxdrv/vboxdrv.ko]
undefined!

================================
I am not quite sure why do_munmap() is undefined as the symbol is exported;
however, should do_mmap_pgoff() be exported?
Thanks,

Larry


\
 
 \ /
  Last update: 2012-06-04 09:02    [W:0.036 / U:6.484 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site