[bpf-next:master 972/996] include/linux/bpf.h:1152:71: warning: unused parameter 'new_ctx'

From: kernel test robot
Date: Tue Aug 17 2021 - 09:44:00 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
head: 3c3bd542ffbb2ac09631313ede46ae66660ae550
commit: 7d08c2c9117113fee118487425ed55efa50cbfa9 [972/996] bpf: Refactor BPF_PROG_RUN_ARRAY family of macros into functions
config: i386-randconfig-r021-20210816 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=7d08c2c9117113fee118487425ed55efa50cbfa9
git remote add bpf-next https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
git fetch --no-tags bpf-next master
git checkout 7d08c2c9117113fee118487425ed55efa50cbfa9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

include/linux/u64_stats_sync.h:154:19: warning: unused parameter 'flags' [-Wunused-parameter]
unsigned long flags)
^
include/linux/u64_stats_sync.h:162:81: warning: unused parameter 'syncp' [-Wunused-parameter]
static inline unsigned int __u64_stats_fetch_begin(const struct u64_stats_sync *syncp)
^
include/linux/u64_stats_sync.h:179:73: warning: unused parameter 'syncp' [-Wunused-parameter]
static inline bool __u64_stats_fetch_retry(const struct u64_stats_sync *syncp,
^
include/linux/u64_stats_sync.h:180:20: warning: unused parameter 'start' [-Wunused-parameter]
unsigned int start)
^
In file included from drivers/gpu/drm/i915/i915_drv.c:39:
In file included from include/linux/vga_switcheroo.h:34:
In file included from include/linux/fb.h:6:
In file included from include/uapi/linux/fb.h:6:
In file included from include/linux/i2c.h:18:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:22:
include/linux/sched/mm.h:103:59: warning: unused parameter 'mm' [-Wunused-parameter]
static inline void mm_update_next_owner(struct mm_struct *mm)
^
include/linux/sched/mm.h:321:37: warning: unused parameter 'memcg' [-Wunused-parameter]
set_active_memcg(struct mem_cgroup *memcg)
^
In file included from drivers/gpu/drm/i915/i915_drv.c:39:
In file included from include/linux/vga_switcheroo.h:34:
In file included from include/linux/fb.h:6:
In file included from include/uapi/linux/fb.h:6:
In file included from include/linux/i2c.h:18:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
include/linux/bpf.h:770:61: warning: unused parameter 'prog' [-Wunused-parameter]
static inline int bpf_trampoline_link_prog(struct bpf_prog *prog,
^
include/linux/bpf.h:771:32: warning: unused parameter 'tr' [-Wunused-parameter]
struct bpf_trampoline *tr)
^
include/linux/bpf.h:775:63: warning: unused parameter 'prog' [-Wunused-parameter]
static inline int bpf_trampoline_unlink_prog(struct bpf_prog *prog,
^
include/linux/bpf.h:776:34: warning: unused parameter 'tr' [-Wunused-parameter]
struct bpf_trampoline *tr)
^
include/linux/bpf.h:780:61: warning: unused parameter 'key' [-Wunused-parameter]
static inline struct bpf_trampoline *bpf_trampoline_get(u64 key,
^
include/linux/bpf.h:781:39: warning: unused parameter 'tgt_info' [-Wunused-parameter]
struct bpf_attach_target_info *tgt_info)
^
include/linux/bpf.h:785:62: warning: unused parameter 'tr' [-Wunused-parameter]
static inline void bpf_trampoline_put(struct bpf_trampoline *tr) {}
^
include/linux/bpf.h:790:70: warning: unused parameter 'd' [-Wunused-parameter]
static inline void bpf_dispatcher_change_prog(struct bpf_dispatcher *d,
^
include/linux/bpf.h:791:29: warning: unused parameter 'from' [-Wunused-parameter]
struct bpf_prog *from,
^
include/linux/bpf.h:792:29: warning: unused parameter 'to' [-Wunused-parameter]
struct bpf_prog *to) {}
^
include/linux/bpf.h:793:55: warning: unused parameter 'address' [-Wunused-parameter]
static inline bool is_bpf_image_address(unsigned long address)
^
include/linux/bpf.h:1012:68: warning: unused parameter 'type_id' [-Wunused-parameter]
static inline const struct bpf_struct_ops *bpf_struct_ops_find(u32 type_id)
^
include/linux/bpf.h:1016:52: warning: unused parameter 'btf' [-Wunused-parameter]
static inline void bpf_struct_ops_init(struct btf *btf,
^
include/linux/bpf.h:1017:37: warning: unused parameter 'log' [-Wunused-parameter]
struct bpf_verifier_log *log)
^
include/linux/bpf.h:1020:51: warning: unused parameter 'data' [-Wunused-parameter]
static inline bool bpf_try_module_get(const void *data, struct module *owner)
^
include/linux/bpf.h:1024:47: warning: unused parameter 'data' [-Wunused-parameter]
static inline void bpf_module_put(const void *data, struct module *owner)
^
include/linux/bpf.h:1028:70: warning: unused parameter 'map' [-Wunused-parameter]
static inline int bpf_struct_ops_map_sys_lookup_elem(struct bpf_map *map,
^
include/linux/bpf.h:1029:18: warning: unused parameter 'key' [-Wunused-parameter]
void *key,
^
include/linux/bpf.h:1030:18: warning: unused parameter 'value' [-Wunused-parameter]
void *value)
^
>> include/linux/bpf.h:1152:71: warning: unused parameter 'new_ctx' [-Wunused-parameter]
static inline struct bpf_run_ctx *bpf_set_run_ctx(struct bpf_run_ctx *new_ctx)
^
>> include/linux/bpf.h:1163:58: warning: unused parameter 'old_ctx' [-Wunused-parameter]
static inline void bpf_reset_run_ctx(struct bpf_run_ctx *old_ctx)
^
include/linux/bpf.h:1663:49: warning: unused parameter 'ufd' [-Wunused-parameter]
static inline struct bpf_prog *bpf_prog_get(u32 ufd)
^
include/linux/bpf.h:1668:58: warning: unused parameter 'ufd' [-Wunused-parameter]
static inline struct bpf_prog *bpf_prog_get_type_dev(u32 ufd,
^
include/linux/bpf.h:1669:31: warning: unused parameter 'type' [-Wunused-parameter]
enum bpf_prog_type type,
^
include/linux/bpf.h:1670:17: warning: unused parameter 'attach_drv' [-Wunused-parameter]
bool attach_drv)
^
include/linux/bpf.h:1675:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_add(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1675:60: warning: unused parameter 'i' [-Wunused-parameter]
static inline void bpf_prog_add(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1679:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_sub(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1679:60: warning: unused parameter 'i' [-Wunused-parameter]
static inline void bpf_prog_sub(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1683:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_put(struct bpf_prog *prog)
^
include/linux/bpf.h:1687:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_inc(struct bpf_prog *prog)
^
include/linux/bpf.h:1692:40: warning: unused parameter 'prog' [-Wunused-parameter]
bpf_prog_inc_not_zero(struct bpf_prog *prog)
^
include/linux/bpf.h:1697:51: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_init(struct bpf_link *link, enum bpf_link_type type,
^
include/linux/bpf.h:1697:76: warning: unused parameter 'type' [-Wunused-parameter]
static inline void bpf_link_init(struct bpf_link *link, enum bpf_link_type type,
^
include/linux/bpf.h:1698:33: warning: unused parameter 'ops' [-Wunused-parameter]
const struct bpf_link_ops *ops,
^
include/linux/bpf.h:1699:23: warning: unused parameter 'prog' [-Wunused-parameter]
struct bpf_prog *prog)
^
include/linux/bpf.h:1703:51: warning: unused parameter 'link' [-Wunused-parameter]
static inline int bpf_link_prime(struct bpf_link *link,
^
include/linux/bpf.h:1704:30: warning: unused parameter 'primer' [-Wunused-parameter]
struct bpf_link_primer *primer)
^
include/linux/bpf.h:1709:59: warning: unused parameter 'primer' [-Wunused-parameter]
static inline int bpf_link_settle(struct bpf_link_primer *primer)
^
include/linux/bpf.h:1714:61: warning: unused parameter 'primer' [-Wunused-parameter]
static inline void bpf_link_cleanup(struct bpf_link_primer *primer)
^
include/linux/bpf.h:1718:50: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_inc(struct bpf_link *link)
^
include/linux/bpf.h:1722:50: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_put(struct bpf_link *link)
^
include/linux/bpf.h:1726:55: warning: unused parameter 'pathname' [-Wunused-parameter]
static inline int bpf_obj_get_user(const char __user *pathname, int flags)
^
include/linux/bpf.h:1726:69: warning: unused parameter 'flags' [-Wunused-parameter]
static inline int bpf_obj_get_user(const char __user *pathname, int flags)
^
include/linux/bpf.h:1731:58: warning: unused parameter 'map' [-Wunused-parameter]
static inline bool dev_map_can_have_prog(struct bpf_map *map)
^
include/linux/bpf.h:1745:40: warning: unused parameter 'dev' [-Wunused-parameter]
int dev_xdp_enqueue(struct net_device *dev, struct xdp_buff *xdp,
^
include/linux/bpf.h:1745:62: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_xdp_enqueue(struct net_device *dev, struct xdp_buff *xdp,
^
include/linux/bpf.h:1746:26: warning: unused parameter 'dev_rx' [-Wunused-parameter]
struct net_device *dev_rx)
^
include/linux/bpf.h:1752:45: warning: unused parameter 'dst' [-Wunused-parameter]
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
^
include/linux/bpf.h:1752:67: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
^
include/linux/bpf.h:1753:26: warning: unused parameter 'dev_rx' [-Wunused-parameter]
struct net_device *dev_rx)
^
include/linux/bpf.h:1759:44: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_map_enqueue_multi(struct xdp_buff *xdp, struct net_device *dev_rx,
^
include/linux/bpf.h:1759:68: warning: unused parameter 'dev_rx' [-Wunused-parameter]
int dev_map_enqueue_multi(struct xdp_buff *xdp, struct net_device *dev_rx,
^
include/linux/bpf.h:1760:22: warning: unused parameter 'map' [-Wunused-parameter]
struct bpf_map *map, bool exclude_ingress)
--
^
include/linux/u64_stats_sync.h:153:56: warning: unused parameter 'syncp' [-Wunused-parameter]
u64_stats_update_end_irqrestore(struct u64_stats_sync *syncp,
^
include/linux/u64_stats_sync.h:154:19: warning: unused parameter 'flags' [-Wunused-parameter]
unsigned long flags)
^
include/linux/u64_stats_sync.h:162:81: warning: unused parameter 'syncp' [-Wunused-parameter]
static inline unsigned int __u64_stats_fetch_begin(const struct u64_stats_sync *syncp)
^
include/linux/u64_stats_sync.h:179:73: warning: unused parameter 'syncp' [-Wunused-parameter]
static inline bool __u64_stats_fetch_retry(const struct u64_stats_sync *syncp,
^
include/linux/u64_stats_sync.h:180:20: warning: unused parameter 'start' [-Wunused-parameter]
unsigned int start)
^
In file included from drivers/gpu/drm/i915/i915_config.c:6:
In file included from drivers/gpu/drm/i915/i915_drv.h:39:
In file included from include/linux/i2c.h:18:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:22:
include/linux/sched/mm.h:103:59: warning: unused parameter 'mm' [-Wunused-parameter]
static inline void mm_update_next_owner(struct mm_struct *mm)
^
include/linux/sched/mm.h:321:37: warning: unused parameter 'memcg' [-Wunused-parameter]
set_active_memcg(struct mem_cgroup *memcg)
^
In file included from drivers/gpu/drm/i915/i915_config.c:6:
In file included from drivers/gpu/drm/i915/i915_drv.h:39:
In file included from include/linux/i2c.h:18:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
include/linux/bpf.h:770:61: warning: unused parameter 'prog' [-Wunused-parameter]
static inline int bpf_trampoline_link_prog(struct bpf_prog *prog,
^
include/linux/bpf.h:771:32: warning: unused parameter 'tr' [-Wunused-parameter]
struct bpf_trampoline *tr)
^
include/linux/bpf.h:775:63: warning: unused parameter 'prog' [-Wunused-parameter]
static inline int bpf_trampoline_unlink_prog(struct bpf_prog *prog,
^
include/linux/bpf.h:776:34: warning: unused parameter 'tr' [-Wunused-parameter]
struct bpf_trampoline *tr)
^
include/linux/bpf.h:780:61: warning: unused parameter 'key' [-Wunused-parameter]
static inline struct bpf_trampoline *bpf_trampoline_get(u64 key,
^
include/linux/bpf.h:781:39: warning: unused parameter 'tgt_info' [-Wunused-parameter]
struct bpf_attach_target_info *tgt_info)
^
include/linux/bpf.h:785:62: warning: unused parameter 'tr' [-Wunused-parameter]
static inline void bpf_trampoline_put(struct bpf_trampoline *tr) {}
^
include/linux/bpf.h:790:70: warning: unused parameter 'd' [-Wunused-parameter]
static inline void bpf_dispatcher_change_prog(struct bpf_dispatcher *d,
^
include/linux/bpf.h:791:29: warning: unused parameter 'from' [-Wunused-parameter]
struct bpf_prog *from,
^
include/linux/bpf.h:792:29: warning: unused parameter 'to' [-Wunused-parameter]
struct bpf_prog *to) {}
^
include/linux/bpf.h:793:55: warning: unused parameter 'address' [-Wunused-parameter]
static inline bool is_bpf_image_address(unsigned long address)
^
include/linux/bpf.h:1012:68: warning: unused parameter 'type_id' [-Wunused-parameter]
static inline const struct bpf_struct_ops *bpf_struct_ops_find(u32 type_id)
^
include/linux/bpf.h:1016:52: warning: unused parameter 'btf' [-Wunused-parameter]
static inline void bpf_struct_ops_init(struct btf *btf,
^
include/linux/bpf.h:1017:37: warning: unused parameter 'log' [-Wunused-parameter]
struct bpf_verifier_log *log)
^
include/linux/bpf.h:1020:51: warning: unused parameter 'data' [-Wunused-parameter]
static inline bool bpf_try_module_get(const void *data, struct module *owner)
^
include/linux/bpf.h:1024:47: warning: unused parameter 'data' [-Wunused-parameter]
static inline void bpf_module_put(const void *data, struct module *owner)
^
include/linux/bpf.h:1028:70: warning: unused parameter 'map' [-Wunused-parameter]
static inline int bpf_struct_ops_map_sys_lookup_elem(struct bpf_map *map,
^
include/linux/bpf.h:1029:18: warning: unused parameter 'key' [-Wunused-parameter]
void *key,
^
include/linux/bpf.h:1030:18: warning: unused parameter 'value' [-Wunused-parameter]
void *value)
^
>> include/linux/bpf.h:1152:71: warning: unused parameter 'new_ctx' [-Wunused-parameter]
static inline struct bpf_run_ctx *bpf_set_run_ctx(struct bpf_run_ctx *new_ctx)
^
>> include/linux/bpf.h:1163:58: warning: unused parameter 'old_ctx' [-Wunused-parameter]
static inline void bpf_reset_run_ctx(struct bpf_run_ctx *old_ctx)
^
include/linux/bpf.h:1663:49: warning: unused parameter 'ufd' [-Wunused-parameter]
static inline struct bpf_prog *bpf_prog_get(u32 ufd)
^
include/linux/bpf.h:1668:58: warning: unused parameter 'ufd' [-Wunused-parameter]
static inline struct bpf_prog *bpf_prog_get_type_dev(u32 ufd,
^
include/linux/bpf.h:1669:31: warning: unused parameter 'type' [-Wunused-parameter]
enum bpf_prog_type type,
^
include/linux/bpf.h:1670:17: warning: unused parameter 'attach_drv' [-Wunused-parameter]
bool attach_drv)
^
include/linux/bpf.h:1675:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_add(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1675:60: warning: unused parameter 'i' [-Wunused-parameter]
static inline void bpf_prog_add(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1679:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_sub(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1679:60: warning: unused parameter 'i' [-Wunused-parameter]
static inline void bpf_prog_sub(struct bpf_prog *prog, int i)
^
include/linux/bpf.h:1683:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_put(struct bpf_prog *prog)
^
include/linux/bpf.h:1687:50: warning: unused parameter 'prog' [-Wunused-parameter]
static inline void bpf_prog_inc(struct bpf_prog *prog)
^
include/linux/bpf.h:1692:40: warning: unused parameter 'prog' [-Wunused-parameter]
bpf_prog_inc_not_zero(struct bpf_prog *prog)
^
include/linux/bpf.h:1697:51: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_init(struct bpf_link *link, enum bpf_link_type type,
^
include/linux/bpf.h:1697:76: warning: unused parameter 'type' [-Wunused-parameter]
static inline void bpf_link_init(struct bpf_link *link, enum bpf_link_type type,
^
include/linux/bpf.h:1698:33: warning: unused parameter 'ops' [-Wunused-parameter]
const struct bpf_link_ops *ops,
^
include/linux/bpf.h:1699:23: warning: unused parameter 'prog' [-Wunused-parameter]
struct bpf_prog *prog)
^
include/linux/bpf.h:1703:51: warning: unused parameter 'link' [-Wunused-parameter]
static inline int bpf_link_prime(struct bpf_link *link,
^
include/linux/bpf.h:1704:30: warning: unused parameter 'primer' [-Wunused-parameter]
struct bpf_link_primer *primer)
^
include/linux/bpf.h:1709:59: warning: unused parameter 'primer' [-Wunused-parameter]
static inline int bpf_link_settle(struct bpf_link_primer *primer)
^
include/linux/bpf.h:1714:61: warning: unused parameter 'primer' [-Wunused-parameter]
static inline void bpf_link_cleanup(struct bpf_link_primer *primer)
^
include/linux/bpf.h:1718:50: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_inc(struct bpf_link *link)
^
include/linux/bpf.h:1722:50: warning: unused parameter 'link' [-Wunused-parameter]
static inline void bpf_link_put(struct bpf_link *link)
^
include/linux/bpf.h:1726:55: warning: unused parameter 'pathname' [-Wunused-parameter]
static inline int bpf_obj_get_user(const char __user *pathname, int flags)
^
include/linux/bpf.h:1726:69: warning: unused parameter 'flags' [-Wunused-parameter]
static inline int bpf_obj_get_user(const char __user *pathname, int flags)
^
include/linux/bpf.h:1731:58: warning: unused parameter 'map' [-Wunused-parameter]
static inline bool dev_map_can_have_prog(struct bpf_map *map)
^
include/linux/bpf.h:1745:40: warning: unused parameter 'dev' [-Wunused-parameter]
int dev_xdp_enqueue(struct net_device *dev, struct xdp_buff *xdp,
^
include/linux/bpf.h:1745:62: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_xdp_enqueue(struct net_device *dev, struct xdp_buff *xdp,
^
include/linux/bpf.h:1746:26: warning: unused parameter 'dev_rx' [-Wunused-parameter]
struct net_device *dev_rx)
^
include/linux/bpf.h:1752:45: warning: unused parameter 'dst' [-Wunused-parameter]
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
^
include/linux/bpf.h:1752:67: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_map_enqueue(struct bpf_dtab_netdev *dst, struct xdp_buff *xdp,
^
include/linux/bpf.h:1753:26: warning: unused parameter 'dev_rx' [-Wunused-parameter]
struct net_device *dev_rx)
^
include/linux/bpf.h:1759:44: warning: unused parameter 'xdp' [-Wunused-parameter]
int dev_map_enqueue_multi(struct xdp_buff *xdp, struct net_device *dev_rx,
^
include/linux/bpf.h:1759:68: warning: unused parameter 'dev_rx' [-Wunused-parameter]
int dev_map_enqueue_multi(struct xdp_buff *xdp, struct net_device *dev_rx,
^
include/linux/bpf.h:1760:22: warning: unused parameter 'map' [-Wunused-parameter]
struct bpf_map *map, bool exclude_ingress)
..

vim +/new_ctx +1152 include/linux/bpf.h

988
989 #if defined(CONFIG_BPF_JIT) && defined(CONFIG_BPF_SYSCALL)
990 #define BPF_MODULE_OWNER ((void *)((0xeB9FUL << 2) + POISON_POINTER_DELTA))
991 const struct bpf_struct_ops *bpf_struct_ops_find(u32 type_id);
992 void bpf_struct_ops_init(struct btf *btf, struct bpf_verifier_log *log);
993 bool bpf_struct_ops_get(const void *kdata);
994 void bpf_struct_ops_put(const void *kdata);
995 int bpf_struct_ops_map_sys_lookup_elem(struct bpf_map *map, void *key,
996 void *value);
997 static inline bool bpf_try_module_get(const void *data, struct module *owner)
998 {
999 if (owner == BPF_MODULE_OWNER)
1000 return bpf_struct_ops_get(data);
1001 else
1002 return try_module_get(owner);
1003 }
1004 static inline void bpf_module_put(const void *data, struct module *owner)
1005 {
1006 if (owner == BPF_MODULE_OWNER)
1007 bpf_struct_ops_put(data);
1008 else
1009 module_put(owner);
1010 }
1011 #else
1012 static inline const struct bpf_struct_ops *bpf_struct_ops_find(u32 type_id)
1013 {
1014 return NULL;
1015 }
1016 static inline void bpf_struct_ops_init(struct btf *btf,
1017 struct bpf_verifier_log *log)
1018 {
1019 }
1020 static inline bool bpf_try_module_get(const void *data, struct module *owner)
1021 {
1022 return try_module_get(owner);
1023 }
1024 static inline void bpf_module_put(const void *data, struct module *owner)
1025 {
1026 module_put(owner);
1027 }
> 1028 static inline int bpf_struct_ops_map_sys_lookup_elem(struct bpf_map *map,
> 1029 void *key,
1030 void *value)
1031 {
1032 return -EINVAL;
1033 }
1034 #endif
1035
1036 struct bpf_array {
1037 struct bpf_map map;
1038 u32 elem_size;
1039 u32 index_mask;
1040 struct bpf_array_aux *aux;
1041 union {
1042 char value[0] __aligned(8);
1043 void *ptrs[0] __aligned(8);
1044 void __percpu *pptrs[0] __aligned(8);
1045 };
1046 };
1047
1048 #define BPF_COMPLEXITY_LIMIT_INSNS 1000000 /* yes. 1M insns */
1049 #define MAX_TAIL_CALL_CNT 32
1050
1051 #define BPF_F_ACCESS_MASK (BPF_F_RDONLY | \
1052 BPF_F_RDONLY_PROG | \
1053 BPF_F_WRONLY | \
1054 BPF_F_WRONLY_PROG)
1055
1056 #define BPF_MAP_CAN_READ BIT(0)
1057 #define BPF_MAP_CAN_WRITE BIT(1)
1058
1059 static inline u32 bpf_map_flags_to_cap(struct bpf_map *map)
1060 {
1061 u32 access_flags = map->map_flags & (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG);
1062
1063 /* Combination of BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG is
1064 * not possible.
1065 */
1066 if (access_flags & BPF_F_RDONLY_PROG)
1067 return BPF_MAP_CAN_READ;
1068 else if (access_flags & BPF_F_WRONLY_PROG)
1069 return BPF_MAP_CAN_WRITE;
1070 else
1071 return BPF_MAP_CAN_READ | BPF_MAP_CAN_WRITE;
1072 }
1073
1074 static inline bool bpf_map_flags_access_ok(u32 access_flags)
1075 {
1076 return (access_flags & (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG)) !=
1077 (BPF_F_RDONLY_PROG | BPF_F_WRONLY_PROG);
1078 }
1079
1080 struct bpf_event_entry {
1081 struct perf_event *event;
1082 struct file *perf_file;
1083 struct file *map_file;
1084 struct rcu_head rcu;
1085 };
1086
1087 bool bpf_prog_array_compatible(struct bpf_array *array, const struct bpf_prog *fp);
1088 int bpf_prog_calc_tag(struct bpf_prog *fp);
1089
1090 const struct bpf_func_proto *bpf_get_trace_printk_proto(void);
1091
1092 typedef unsigned long (*bpf_ctx_copy_t)(void *dst, const void *src,
1093 unsigned long off, unsigned long len);
1094 typedef u32 (*bpf_convert_ctx_access_t)(enum bpf_access_type type,
1095 const struct bpf_insn *src,
1096 struct bpf_insn *dst,
1097 struct bpf_prog *prog,
1098 u32 *target_size);
1099
1100 u64 bpf_event_output(struct bpf_map *map, u64 flags, void *meta, u64 meta_size,
1101 void *ctx, u64 ctx_size, bpf_ctx_copy_t ctx_copy);
1102
1103 /* an array of programs to be executed under rcu_lock.
1104 *
1105 * Typical usage:
1106 * ret = BPF_PROG_RUN_ARRAY(&bpf_prog_array, ctx, bpf_prog_run);
1107 *
1108 * the structure returned by bpf_prog_array_alloc() should be populated
1109 * with program pointers and the last pointer must be NULL.
1110 * The user has to keep refcnt on the program and make sure the program
1111 * is removed from the array before bpf_prog_put().
1112 * The 'struct bpf_prog_array *' should only be replaced with xchg()
1113 * since other cpus are walking the array of pointers in parallel.
1114 */
1115 struct bpf_prog_array_item {
1116 struct bpf_prog *prog;
1117 struct bpf_cgroup_storage *cgroup_storage[MAX_BPF_CGROUP_STORAGE_TYPE];
1118 };
1119
1120 struct bpf_prog_array {
1121 struct rcu_head rcu;
1122 struct bpf_prog_array_item items[];
1123 };
1124
1125 struct bpf_prog_array *bpf_prog_array_alloc(u32 prog_cnt, gfp_t flags);
1126 void bpf_prog_array_free(struct bpf_prog_array *progs);
1127 int bpf_prog_array_length(struct bpf_prog_array *progs);
1128 bool bpf_prog_array_is_empty(struct bpf_prog_array *array);
1129 int bpf_prog_array_copy_to_user(struct bpf_prog_array *progs,
1130 __u32 __user *prog_ids, u32 cnt);
1131
1132 void bpf_prog_array_delete_safe(struct bpf_prog_array *progs,
1133 struct bpf_prog *old_prog);
1134 int bpf_prog_array_delete_safe_at(struct bpf_prog_array *array, int index);
1135 int bpf_prog_array_update_at(struct bpf_prog_array *array, int index,
1136 struct bpf_prog *prog);
1137 int bpf_prog_array_copy_info(struct bpf_prog_array *array,
1138 u32 *prog_ids, u32 request_cnt,
1139 u32 *prog_cnt);
1140 int bpf_prog_array_copy(struct bpf_prog_array *old_array,
1141 struct bpf_prog *exclude_prog,
1142 struct bpf_prog *include_prog,
1143 struct bpf_prog_array **new_array);
1144
1145 struct bpf_run_ctx {};
1146
1147 struct bpf_cg_run_ctx {
1148 struct bpf_run_ctx run_ctx;
1149 const struct bpf_prog_array_item *prog_item;
1150 };
1151
> 1152 static inline struct bpf_run_ctx *bpf_set_run_ctx(struct bpf_run_ctx *new_ctx)
1153 {
1154 struct bpf_run_ctx *old_ctx = NULL;
1155
1156 #ifdef CONFIG_BPF_SYSCALL
1157 old_ctx = current->bpf_ctx;
1158 current->bpf_ctx = new_ctx;
1159 #endif
1160 return old_ctx;
1161 }
1162
> 1163 static inline void bpf_reset_run_ctx(struct bpf_run_ctx *old_ctx)
1164 {
1165 #ifdef CONFIG_BPF_SYSCALL
1166 current->bpf_ctx = old_ctx;
1167 #endif
1168 }
1169

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