On Wed, 14 Dec 2022 at 00:48, Giulio Benetti giulio.benetti@benettiengineering.com wrote:

zero_page is a void* pointer but memblock_alloc() returns phys_addr_t type so this generates a warning while using clang and with -Wint-error enabled that becomes and error. So let's cast the return of memblock_alloc() to (void *).

Cc: stable@vger.kernel.org # 4.14.x + Fixes: 340a982825f7 ("ARM: 9266/1: mm: fix no-MMU ZERO_PAGE() implementation") Signed-off-by: Giulio Benetti giulio.benetti@benettiengineering.com

Tested-by: Linux Kernel Functional Testing lkft@linaro.org

---

arch/arm/mm/nommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index c1494a4dee25..53f2d8774fdb 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -161,7 +161,7 @@ void __init paging_init(const struct machine_desc *mdesc) mpu_setup();

    /* allocate the zero page. */

•   zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
  

•   zero_page = (void *)memblock_alloc(PAGE_SIZE, PAGE_SIZE);
    if (!zero_page)
            panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
                  __func__, PAGE_SIZE, PAGE_SIZE);
  

-- 2.34.1

-- Linaro LKFT https://lkft.linaro.org