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debugfs: add missing #ifdef HAS_IOMEM 

"debugfs: add tools to printk 32-bit registers" adds new functions which rely
on IOMEM functionality which is not present on all architectures and therefore
result in compile errors:

fs/debugfs/file.c: In function 'debugfs_print_regs32':
fs/debugfs/file.c:561:7: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration]

Add an #ifdef CONFIG_HAS_IOMEM to fix this

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Heiko Carstens 2011-12-27 15:08:28 +01:00 committed by Greg Kroah-Hartman
parent a87b5b1cc1
commit 3b85e4ab2e
1 changed files with 4 additions and 0 deletions
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4
fs/debugfs/file.c
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@ -528,6 +528,8 @@ struct dentry *debugfs_create_blob(const char *name, mode_t mode,
}
EXPORT_SYMBOL_GPL(debugfs_create_blob);
#ifdef CONFIG_HAS_IOMEM
/*
* The regset32 stuff is used to print 32-bit registers using the
* seq_file utilities. We offer printing a register set in an already-opened
@ -616,3 +618,5 @@ struct dentry *debugfs_create_regset32(const char *name, mode_t mode,
return debugfs_create_file(name, mode, parent, regset, &fops_regset32);
}
EXPORT_SYMBOL_GPL(debugfs_create_regset32);
#endif /* CONFIG_HAS_IOMEM */