[Linux-cachefs] [PATCH 2/2] fs/cachefiles/daemon.c: remove always false comparison

[zhengbin]

Fixes gcc warning:

fs/cachefiles/daemon.c:228:14: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
fs/cachefiles/daemon.c:385:12: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
fs/cachefiles/daemon.c:457:12: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]

Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: zhengbin <zhengbin13 at huawei.com>
---
 fs/cachefiles/daemon.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 752c1e4..24b1797 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -225,7 +225,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
 	if (test_bit(CACHEFILES_DEAD, &cache->flags))
 		return -EIO;

-	if (datalen < 0 || datalen > PAGE_SIZE - 1)
+	if (datalen > PAGE_SIZE - 1)
 		return -EOPNOTSUPP;

 	/* drag the command string into the kernel so we can parse it */
@@ -382,7 +382,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;

-	if (fstop < 0 || fstop >= cache->fcull_percent)
+	if (fstop >= cache->fcull_percent)
 		return cachefiles_daemon_range_error(cache, args);

 	cache->fstop_percent = fstop;
@@ -454,7 +454,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;

-	if (bstop < 0 || bstop >= cache->bcull_percent)
+	if (bstop >= cache->bcull_percent)
 		return cachefiles_daemon_range_error(cache, args);

 	cache->bstop_percent = bstop;
--
2.7.4