Hi all,
After merging the pidfd tree, today's linux-next build (x86_64
allnoconfig) failed like this:
fs/nsfs.c:232:6: error: redefinition of 'proc_ns_file'
232 | bool proc_ns_file(const struct file *file)
| ^~~~~~~~~~~~
In file included from fs/nsfs.c:6:
include/linux/proc_fs.h:194:20: note: previous definition of 'proc_ns_file' was here
194 | static inline bool proc_ns_file(const struct file *file)
| ^~~~~~~~~~~~
Caused by commit
1e76b8ad203a ("nsproxy: attach to namespaces via pidfds")
I have applied the following hack for today:
From 07065344c6fb39c440b0de5f75842066bc97a675 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Tue, 12 May 2020 20:08:51 +1000
Subject: [PATCH] nsproxy: protect proc_ns_file() when CONFIG_PROC_FS is not set
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
fs/nsfs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/nsfs.c b/fs/nsfs.c
index 800c1d0eb0d0..9215ad7597d6 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -229,10 +229,12 @@ int ns_get_name(char *buf, size_t size, struct task_struct *task,
return res;
}
+#ifdef CONFIG_PROC_FS
bool proc_ns_file(const struct file *file)
{
return file->f_op == &ns_file_operations;
}
+#endif
struct file *proc_ns_fget(int fd)
{
--
2.26.2
--
Cheers,
Stephen Rothwell
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