selftests/x86/pkeys: Remove unused functions

This also gets rid of two build warnings:

  protection_keys.c: In function ‘dumpit’:
  protection_keys.c:419:3: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
     write(1, buf, nr_read);
     ^~~~~~~~~~~~~~~~~~~~~~

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 0 insertions, 28 deletions

diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
index bc1b0735bb50..f15aa5a76fe3 100644
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -393,34 +393,6 @@ pid_t fork_lazy_child(void)
         return forkret;
 }
 
-void davecmp(void *_a, void *_b, int len)
-{
-        int i;
-        unsigned long *a = _a;
-        unsigned long *b = _b;
-
-        for (i = 0; i < len / sizeof(*a); i++) {
-                if (a[i] == b[i])
-                        continue;
-
-                dprintf3("[%3d]: a: %016lx b: %016lx\n", i, a[i], b[i]);
-        }
-}
-
-void dumpit(char *f)
-{
-        int fd = open(f, O_RDONLY);
-        char buf[100];
-        int nr_read;
-
-        dprintf2("maps fd: %d\n", fd);
-        do {
-                nr_read = read(fd, &buf[0], sizeof(buf));
-                write(1, buf, nr_read);
-        } while (nr_read > 0);
-        close(fd);
-}
-
 #define PKEY_DISABLE_ACCESS    0x1
 #define PKEY_DISABLE_WRITE     0x2