GCC 15 enables -Werror=unterminated-string-initialization by default.
This results in the following build error/s
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
917 | [0 ... (BITS_PER_LONG-1)] = "??",
| ^~~~
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
fs/proc/task_mmu.c:917:49: error: initializer-string for array of ‘char’ is too long [-Werror=unterminate d-string-initialization]
...
To fix this, the length of the second argument of arary mnemonics needs
to be 3 instead of previously set 2 (i.e. from [BITS_PER_LONG][2] to
[BITS_PER_LONG][3])
Signed-off-by: Brahmajit Das <brahmajit.xyz@xxxxxxxxx>
---
fs/proc/task_mmu.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 72f14fd59c2d..aa5780696fc1 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -909,8 +909,15 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
{
/*
* Don't forget to update Documentation/ on changes.
+ *
+ * The length of the second argument of arary mnemonics
+ * needs to be 3 instead of previously set 2
+ * (i.e. from [BITS_PER_LONG][2] to [BITS_PER_LONG][3])
+ * to avoid spurious
+ * -Werror=unterminated-string-initialization warning
+ * with GCC 15
*/
- static const char mnemonics[BITS_PER_LONG][2] = {
+ static const char mnemonics[BITS_PER_LONG][3] = {
/*
* In case if we meet a flag we don't know about.
*/
--
2.46.2
