Fix a silly copy-paste bug.
We truncated u32 args to u16.

Fixes: ded97d2c2b2c ("kcov: support comparison operands collection")
Signed-off-by: Dmitry Vyukov <dvyu...@google.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux...@kvack.org
Cc: syzkal...@googlegroups.com
Cc: Alexander Potapenko <gli...@google.com>
Cc: Vegard Nossum <vegard.nos...@oracle.com>
Cc: Quentin Casasnovas <quentin.casasno...@oracle.com>
---
 kernel/kcov.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index 15f33faf4013..7594c033d98a 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -157,7 +157,7 @@ void notrace __sanitizer_cov_trace_cmp2(u16 arg1, u16 arg2)
 }
 EXPORT_SYMBOL(__sanitizer_cov_trace_cmp2);
 
-void notrace __sanitizer_cov_trace_cmp4(u16 arg1, u16 arg2)
+void notrace __sanitizer_cov_trace_cmp4(u32 arg1, u32 arg2)
 {
        write_comp_data(KCOV_CMP_SIZE(2), arg1, arg2, _RET_IP_);
 }
@@ -183,7 +183,7 @@ void notrace __sanitizer_cov_trace_const_cmp2(u16 arg1, u16 
arg2)
 }
 EXPORT_SYMBOL(__sanitizer_cov_trace_const_cmp2);
 
-void notrace __sanitizer_cov_trace_const_cmp4(u16 arg1, u16 arg2)
+void notrace __sanitizer_cov_trace_const_cmp4(u32 arg1, u32 arg2)
 {
        write_comp_data(KCOV_CMP_SIZE(2) | KCOV_CMP_CONST, arg1, arg2,
                        _RET_IP_);
-- 
2.15.1.424.g9478a66081-goog

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