From: Alexey Brodkin <abrodkin@xxxxxxxxxxxx> 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--------------- Cc: Borislav Petkov <bp@xxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Cody P Schafer <dev@xxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: linux-perf-users@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Alexey Brodkin <abrodkin@xxxxxxxxxxxx> --- v3: Changes since v2 [2] * Made Changelog a bit more concise, no code changes [vgupta] v2: Changes since v1 [1] * Added type cast to DEBUGFS_MAGIC in "debugfs.c" [Arnaldo] * Added verbose explanation of root cause [2] https://lkml.org/lkml/2014/9/16/296 [1] https://lkml.org/lkml/2014/8/13/529 Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> --- tools/lib/api/fs/debugfs.c | 2 +- tools/lib/api/fs/fs.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c index a74fba6d7743..93aa4cd2416f 100644 --- 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 65d9be3f9887..15e64921ea84 100644 --- 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; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
