diff options
| author | David S. Miller <davem@davemloft.net> | 2018-06-11 17:37:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-11 17:37:03 -0700 |
| commit | 0ca69d1399eefd481f926bb5f271ddc2da38d4f4 (patch) | |
| tree | 0f6368a1fe6be42b2bfeeba294f655f721e5e49a | |
| parent | 93ba168ad4c771b9b37bd28230fc5e7f285ccff9 (diff) | |
| parent | a343993c518ce252b62ec00ac06bccfb1d17129d (diff) | |
| download | linux-0ca69d1399eefd481f926bb5f271ddc2da38d4f4.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2018-06-12
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Avoid an allocation warning in AF_XDP by adding __GFP_NOWARN for the
umem setup, from Björn.
2) Silence a warning in bpf fs when an application tries to open(2) a
pinned bpf obj due to missing fops. Add a dummy open fop that continues
to just bail out in such case, from Daniel.
3) Fix a BPF selftest urandom_read build issue where gcc complains that
it gets built twice, from Anders.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | kernel/bpf/inode.c | 14 | ||||
| -rw-r--r-- | net/xdp/xdp_umem.c | 3 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 4 |
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 |