From: Pavel Begunkov <asml.silence@gmail.com>
Date: Tue, 15 Jun 2021 12:20:13 +0000 (+0100)
Subject: io_uring: fix min types mismatch in table alloc
X-Git-Tag: accepted/tizen/unified/20230118.172025~6938^2~39
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=27f6b318dea2d7ccccc9dca416e59431838c2929;p=platform%2Fkernel%2Flinux-rpi.git

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
--- 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]) {