Messages in this thread |  | | Date | Wed, 11 Mar 2026 16:09:36 +0100 | | From | Thomas Weißschuh <> | | Subject | Re: [tip:timers/vdso 37/45] progs/hid_bpf_helpers.h:117:31: error: declaration of 'struct bpf_wq' will not be visible outside of this function |
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Hi Jiri and Benjamin,
could you take a look at the report below? This looks like an issue in the HID BPF subsystem, surfaced by my unrelated change. Does this ring a bell for you?
I wasn't able to reproduce it so far, but will continue looking into it.
Thomas
On Wed, Mar 11, 2026 at 03:29:54PM +0100, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/vdso > head: f7178f159b2a36d070fd43b0d751e4e4415ec39e > commit: 912632a7fd4cc1eac2778828d92e8fe46939d6bd [37/45] vdso/datapage: Trim down unnecessary includes > config: riscv-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260311/202603111558.KLCIxsZB-lkp@intel.com/config) > compiler: riscv64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260311/202603111558.KLCIxsZB-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@intel.com> > | Closes: https://lore.kernel.org/oe-kbuild-all/202603111558.KLCIxsZB-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > In file included from progs/hid.c:3: > >> progs/hid_bpf_helpers.h:117:31: error: declaration of 'struct bpf_wq' will not be visible outside of this function [-Werror,-Wvisibility] > 117 | extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym; > | ^ > progs/hid_bpf_helpers.h:118:32: error: declaration of 'struct bpf_wq' will not be visible outside of this function [-Werror,-Wvisibility] > 118 | extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym; > | ^ > progs/hid_bpf_helpers.h:119:39: error: declaration of 'struct bpf_wq' will not be visible outside of this function [-Werror,-Wvisibility] > 119 | extern int bpf_wq_set_callback(struct bpf_wq *wq, > | ^ > >> progs/hid.c:448:16: error: field has incomplete type 'struct bpf_wq' > 448 | struct bpf_wq work; > | ^ > progs/hid.c:448:9: note: forward declaration of 'struct bpf_wq' > 448 | struct bpf_wq work; > | ^ > >> progs/hid.c:487:18: error: incompatible pointer types passing 'struct bpf_wq *' to parameter of type 'struct bpf_wq *' [-Wincompatible-pointer-types] > 487 | if (bpf_wq_init(wq, &hmap, 0) != 0) > | ^~ > progs/hid_bpf_helpers.h:117:39: note: passing argument to parameter 'wq' here > 117 | extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym; > | ^ > progs/hid.c:490:26: error: incompatible pointer types passing 'struct bpf_wq *' to parameter of type 'struct bpf_wq *' [-Wincompatible-pointer-types] > 490 | if (bpf_wq_set_callback(wq, wq_cb_sleepable, 0)) > | ^~ > progs/hid_bpf_helpers.h:119:47: note: passing argument to parameter 'wq' here > 119 | extern int bpf_wq_set_callback(struct bpf_wq *wq, > | ^ > progs/hid.c:493:19: error: incompatible pointer types passing 'struct bpf_wq *' to parameter of type 'struct bpf_wq *' [-Wincompatible-pointer-types] > 493 | if (bpf_wq_start(wq, 0)) > | ^~ > progs/hid_bpf_helpers.h:118:40: note: passing argument to parameter 'wq' here > 118 | extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym; > | ^ > progs/hid.c:503:24: error: incomplete definition of type 'struct hid_device' > 503 | int hid = hid_ctx->hid->id; > | ~~~~~~~~~~~~^ > progs/hid_bpf_helpers.h:59:9: note: forward declaration of 'struct hid_device' > 59 | struct hid_device *hid; > | ^ > 8 errors generated. > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki
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