[PATCH 20/67] cachefiles: Remove some redundant checks on unsigned values

David Howells
2021-10-18T14:56:10Z

Remove some redundant checks for unsigned values being >= 0.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/cachefiles/bind.c | 6 ++----
fs/cachefiles/daemon.c | 6 +++---
2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 6720c07f3d85..0bc748081f59 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -36,13 +36,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
args);

/* start by checking things over */
- ASSERT(cache->fstop_percent >= 0 &&
- cache->fstop_percent < cache->fcull_percent &&
+ ASSERT(cache->fstop_percent < cache->fcull_percent &&
cache->fcull_percent < cache->frun_percent &&
cache->frun_percent < 100);

- ASSERT(cache->bstop_percent >= 0 &&
- cache->bstop_percent < cache->bcull_percent &&
+ ASSERT(cache->bstop_percent < cache->bcull_percent &&
cache->bcull_percent < cache->brun_percent &&
cache->brun_percent < 100);

diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 8a937d6d5e22..e8ab3ab57147 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -221,7 +221,7 @@ 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 */
@@ -378,7 +378,7 @@ 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;
@@ -450,7 +450,7 @@ 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;