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Subject[PATCH -next] debugfs: add missing #ifdef HAS_IOMEM
Date
"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>
Cc: Alessandro Rubini <rubini@gnudd.com>
---
fs/debugfs/file.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 989f07f..ea62afa 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -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 */
--
1.7.7.3


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