Looks reasonable to just increase the size of 'name' to avoid the
potential truncation:

../tests/kms_cursor_crc.c: In function ‘run_size_tests.constprop’:
../tests/kms_cursor_crc.c:699:50: warning: ‘%d’ directive output may be 
truncated writing between 1 and 11 bytes into a region of size between 4 and 14 
[-Wformat-truncation=]
  699 |                 snprintf(name, sizeof(name), "%dx%d", w, h);
      |                                                  ^~
../tests/kms_cursor_crc.c:699:46: note: directive argument in the range 
[-2147483648, 1024]
  699 |                 snprintf(name, sizeof(name), "%dx%d", w, h);
      |                                              ^~~~~~~
In file included from /usr/include/stdio.h:894,
                 from ../lib/igt_core.h:38,
                 from ../lib/drmtest.h:39,
                 from ../lib/igt.h:27,
                 from ../tests/kms_cursor_crc.c:25:
In function ‘snprintf’,
    inlined from ‘run_size_tests.constprop’ at ../tests/kms_cursor_crc.c:699:3:
/usr/include/bits/stdio2.h:71:10: note: ‘__builtin___snprintf_chk’ output 
between 4 and 24 bytes into a destination of size 16
   71 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   72 |                                    __glibc_objsize (__s), __fmt,
      |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   73 |                                    __va_arg_pack ());
      |                                    ~~~~~~~~~~~~~~~~~

Signed-off-by: Matthew Auld <[email protected]>
Cc: Petri Latvala <[email protected]>
---
 tests/kms_cursor_crc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/kms_cursor_crc.c b/tests/kms_cursor_crc.c
index 513c9715..131fdb0a 100644
--- a/tests/kms_cursor_crc.c
+++ b/tests/kms_cursor_crc.c
@@ -691,7 +691,7 @@ static void test_rapid_movement(data_t *data)
 static void run_size_tests(data_t *data, enum pipe pipe,
                           int w, int h)
 {
-       char name[16];
+       char name[32];
 
        if (w == 0 && h == 0)
                strcpy(name, "max-size");
-- 
2.36.1

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