From 23fc539e81295b14b50c6ccc5baeb4f3d59d822d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 14 Feb 2022 20:22:10 +0100 Subject: uaccess: fix type mismatch warnings from access_ok() On some architectures, access_ok() does not do any argument type checking, so replacing the definition with a generic one causes a few warnings for harmless issues that were never caught before. Fix the ones that I found either through my own test builds or that were reported by the 0-day bot. Reported-by: kernel test robot Reviewed-by: Christoph Hellwig Acked-by: Dinh Nguyen Signed-off-by: Arnd Bergmann --- lib/test_lockup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'lib/test_lockup.c') diff --git a/lib/test_lockup.c b/lib/test_lockup.c index 906b598740a7..6a0f329a794a 100644 --- a/lib/test_lockup.c +++ b/lib/test_lockup.c @@ -417,8 +417,8 @@ static bool test_kernel_ptr(unsigned long addr, int size) return false; /* should be at least readable kernel address */ - if (access_ok(ptr, 1) || - access_ok(ptr + size - 1, 1) || + if (access_ok((void __user *)ptr, 1) || + access_ok((void __user *)ptr + size - 1, 1) || get_kernel_nofault(buf, ptr) || get_kernel_nofault(buf, ptr + size - 1)) { pr_err("invalid kernel ptr: %#lx\n", addr); -- cgit