io_uring: fix min types mismatch in table alloc

fs/io_uring.c: In function 'io_alloc_page_table':
include/linux/minmax.h:20:28: warning: comparison of distinct pointer
	types lacks a cast

Cast everything to size_t using min_t.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 9123c8ffce16 ("io_uring: add helpers for 2 level table alloc")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/50f420a956bca070a43810d4a805293ed54f39d8.1623759527.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 807a1ab..6292b8d 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7088,7 +7088,7 @@ static void **io_alloc_page_table(size_t size)
                return NULL;
 
        for (i = 0; i < nr_tables; i++) {
-               unsigned int this_size = min(size, PAGE_SIZE);
+               unsigned int this_size = min_t(size_t, size, PAGE_SIZE);
 
                table[i] = kzalloc(this_size, GFP_KERNEL);
                if (!table[i]) {