4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
[ Upstream commit c473bcdd80d4ab2ae79a7a509a6712818366e32a ]
clang-14 points out that v_size is always smaller than a 64KB
page size if that is configured by the CPU architecture:
fs/nilfs2/ioctl.c:63:19: error: result of comparison of constant 65536 with expression of type '__u16' (aka 'unsigned short') is always false [-Werror,-Wtautological-constant-out-of-range-compare]
if (argv->v_size > PAGE_SIZE)
~~~~~~~~~~~~ ^ ~~~~~~~~~
This is ok, so just shut up that warning with a cast.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Link: https://lore.kernel.org/r/20240328143051.1069575-7-arnd@xxxxxxxxxx
Fixes: 3358b4aaa84f ("nilfs2: fix problems of memory allocation in ioctl")
Acked-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Reviewed-by: Justin Stitt <justinstitt@xxxxxxxxxx>
Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/nilfs2/ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index ecb5e4cf058b5..369c55e1b9417 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -59,7 +59,7 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs,
if (argv->v_nmembs == 0)
return 0;
- if (argv->v_size > PAGE_SIZE)
+ if ((size_t)argv->v_size > PAGE_SIZE)
return -EINVAL;
/*
--
2.43.0
