mm/kasan: remove redundant initialization for kasan_flag_write_only

Patch series "mm: remove redundant static variable initializations".

This series removes explicit initializations of static bool variables to
false within the mm/ subsystem.  In C, static variables without explicit
initialization are implicitly placed in the .bss section and initialized
to zero/false by default.  Removing these explicit initializations follows
the Linux kernel coding style and avoids cluttering the data section.


This patch (of 2):

The static variable 'kasan_flag_write_only' is implicitly initialized to
false.  Remove the explicit initialization to follow the Linux kernel
coding style.

Link: https://lore.kernel.org/20260623114743.4565-1-igorpetindev@gmail.com
Link: https://lore.kernel.org/20260623114743.4565-2-igorpetindev@gmail.com
Signed-off-by: Igor Putko <igorpetindev@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/kasan/hw_tags.c

@@ -61,7 +61,7 @@ DEFINE_STATIC_KEY_FALSE(kasan_flag_vmalloc);
 EXPORT_SYMBOL_GPL(kasan_flag_vmalloc);
 
 /* Whether to check write accesses only. */
-static bool kasan_flag_write_only = false;
+static bool kasan_flag_write_only;
 
 #define PAGE_ALLOC_SAMPLE_DEFAULT	1
 #define PAGE_ALLOC_SAMPLE_ORDER_DEFAULT	3