gcov: clang: fix clang-11+ build

With clang-11+, the code is broken due to my kvmalloc() conversion
(which predated the clang-11 support code) leaving one vmalloc() in
place.  Fix that.

Link: https://lkml.kernel.org/r/20210412214210.6e1ecca9cdc5.I24459763acf0591d5e6b31c7e3a59890d802f79c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
index c466c7f..b81f282 100644 (file)
--- a/kernel/gcov/clang.c
+++ b/kernel/gcov/clang.c
@@ -369,7 +369,7 @@ static struct gcov_fn_info *gcov_fn_info_dup(struct gcov_fn_info *fn)
        INIT_LIST_HEAD(&fn_dup->head);
 
        cv_size = fn->num_counters * sizeof(fn->counters[0]);
-       fn_dup->counters = vmalloc(cv_size);
+       fn_dup->counters = kvmalloc(cv_size, GFP_KERNEL);
        if (!fn_dup->counters) {
                kfree(fn_dup);
                return NULL;