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-rw-r--r--kernel/bpf/inode.c14
-rw-r--r--net/xdp/xdp_umem.c3
-rw-r--r--tools/testing/selftests/bpf/Makefile4
3 files changed, 15 insertions, 6 deletions
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c
index ed13645bd80c..76efe9a183f5 100644
--- a/kernel/bpf/inode.c
+++ b/kernel/bpf/inode.c
@@ -295,6 +295,15 @@ static const struct file_operations bpffs_map_fops = {
.release = bpffs_map_release,
};
+static int bpffs_obj_open(struct inode *inode, struct file *file)
+{
+ return -EIO;
+}
+
+static const struct file_operations bpffs_obj_fops = {
+ .open = bpffs_obj_open,
+};
+
static int bpf_mkobj_ops(struct dentry *dentry, umode_t mode, void *raw,
const struct inode_operations *iops,
const struct file_operations *fops)
@@ -314,7 +323,8 @@ static int bpf_mkobj_ops(struct dentry *dentry, umode_t mode, void *raw,
static int bpf_mkprog(struct dentry *dentry, umode_t mode, void *arg)
{
- return bpf_mkobj_ops(dentry, mode, arg, &bpf_prog_iops, NULL);
+ return bpf_mkobj_ops(dentry, mode, arg, &bpf_prog_iops,
+ &bpffs_obj_fops);
}
static int bpf_mkmap(struct dentry *dentry, umode_t mode, void *arg)
@@ -322,7 +332,7 @@ static int bpf_mkmap(struct dentry *dentry, umode_t mode, void *arg)
struct bpf_map *map = arg;
return bpf_mkobj_ops(dentry, mode, arg, &bpf_map_iops,
- map->btf ? &bpffs_map_fops : NULL);
+ map->btf ? &bpffs_map_fops : &bpffs_obj_fops);
}
static struct dentry *
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index b9ef487c4618..f47abb46c587 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -204,7 +204,8 @@ static int xdp_umem_pin_pages(struct xdp_umem *umem)
long npgs;
int err;
- umem->pgs = kcalloc(umem->npgs, sizeof(*umem->pgs), GFP_KERNEL);
+ umem->pgs = kcalloc(umem->npgs, sizeof(*umem->pgs),
+ GFP_KERNEL | __GFP_NOWARN);
if (!umem->pgs)
return -ENOMEM;
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 607ed8729c06..7a6214e9ae58 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -16,9 +16,7 @@ LDLIBS += -lcap -lelf -lrt -lpthread
TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
all: $(TEST_CUSTOM_PROGS)
-$(TEST_CUSTOM_PROGS): urandom_read
-
-urandom_read: urandom_read.c
+$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c
$(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id
# Order correspond to 'make run_tests' order