perf tools: Fix statfs.f_type data type mismatch build error with uclibc

ARC Linux uses the no legacy syscalls abi and corresponding uClibc headers
statfs defines f_type to be U32 which causes perf build breakage

http://git.uclibc.org/uClibc/tree/libc/sysdeps/linux/common-generic/bits/statfs.h

  ----------->8---------------
    CC       fs/fs.o
  fs/fs.c: In function 'fs__valid_mount':
  fs/fs.c:82:24: error: comparison between signed and unsigned integer
  expressions [-Werror=sign-compare]
    else if (st_fs.f_type != magic)
                          ^
  cc1: all warnings being treated as errors
  ----------->8---------------

Signed-off-by: Alexey Brodkin <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Cody P Schafer <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Vineet Gupta <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index a74fba6d774353d33fac7f04b71abdd241e0218e..86ea2d7b88451c219dacad848e60564fb1a64ecf 100644 (file)
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -67,7 +67,7 @@ int debugfs_valid_mountpoint(const char *debugfs)
 
        if (statfs(debugfs, &st_fs) < 0)
                return -ENOENT;
-       else if (st_fs.f_type != (long) DEBUGFS_MAGIC)
+       else if ((long)st_fs.f_type != (long)DEBUGFS_MAGIC)
                return -ENOENT;
 
        return 0;

diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index 65d9be3f988747ae300db30d3b62cf0e8213dd69..128ef6332a6bd89c0ddbeef283c4dfccbf5f8417 100644 (file)
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -79,7 +79,7 @@ static int fs__valid_mount(const char *fs, long magic)
 
        if (statfs(fs, &st_fs) < 0)
                return -ENOENT;
-       else if (st_fs.f_type != magic)
+       else if ((long)st_fs.f_type != magic)
                return -ENOENT;
 
        return 0;