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ANDROID: GKI: hack up fs/sysfs/file.c to prevent GENKSYMS change

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In commit cb1f69d53a ("sysfs: Add sysfs_emit and sysfs_emit_at to
format sysfs output") in 4.19.179, a #include <linux/mm.h> addition is
added to the fs/sysfs/file.c file, before sysfs.h is included in the
build.  This ends up causing a previously "UNKNOWN" symbol type
definition of struct vm_operations_struct to become "known" which
propagates to a CRC change for some sysfs symbol definitions.

To prevent all this mess, add a simple #ifndef to prevent the mm.h file
from being included when running the symbol tool, and all is fine.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibcc22bedc4f39d2ef49a52ebd7962a8dba5b0583
This commit is contained in:
Greg Kroah-Hartman 2021-03-08 09:54:24 +01:00
parent 6164fcac06
commit e827d00a70
1 changed files with 2 additions and 0 deletions
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2
fs/sysfs/file.c
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@ -15,7 +15,9 @@
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
#ifndef __GENKSYMS__
#include <linux/mm.h>
#endif
#include "sysfs.h"
#include "../kernfs/kernfs-internal.h"