kcov: fix comparison callback signature

Fix a silly copy-paste bug. We truncated u32 args to u16. Link: http://lkml.kernel.org/r/[email protected] Fixes: ded97d2 ("kcov: support comparison operands collection") Signed-off-by: Dmitry Vyukov <[email protected]> Cc: [email protected] Cc: Alexander Potapenko <[email protected]> Cc: Vegard Nossum <[email protected]> Cc: Quentin Casasnovas <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Dec 15, 2017 · 689d77f · 689d77f
1 parent 85c3e4a
commit 689d77f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git 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_);