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/linux/net/netfilter/
H A Dnfnetlink_cthelper.c35 struct nf_conntrack_helper helper; member
45 struct nf_conntrack_helper *helper; in nfnl_userspace_cthelper() local
52 helper = rcu_dereference(help->helper); in nfnl_userspace_cthelper()
53 if (helper == NULL) in nfnl_userspace_cthelper()
56 /* This is a user-space helper not yet configured, skip. */ in nfnl_userspace_cthelper()
57 if ((helper->flags & in nfnl_userspace_cthelper()
62 /* If the user-space helper is not available, don't block traffic. */ in nfnl_userspace_cthelper()
63 return NF_QUEUE_NR(helper->queue_num) | NF_VERDICT_FLAG_QUEUE_BYPASS; in nfnl_userspace_cthelper()
99 const struct nf_conntrack_helper *helper; in nfnl_cthelper_from_nlattr() local
104 helper = rcu_dereference(help->helper); in nfnl_cthelper_from_nlattr()
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H A Dnf_conntrack_helper.c2 /* Helper handling for netfilter. */
85 if (request_module("nfct-helper-%s", name) == 0) { in nf_conntrack_helper_try_module_get()
106 void nf_conntrack_helper_put(struct nf_conntrack_helper *helper) in nf_conntrack_helper_put() argument
108 refcount_dec(&helper->refcnt); in nf_conntrack_helper_put()
109 module_put(helper->me); in nf_conntrack_helper_put()
165 void nf_nat_helper_put(struct nf_conntrack_helper *helper) in nf_nat_helper_put() argument
169 nat = nf_conntrack_nat_helper_find(helper->nat_mod_name); in nf_nat_helper_put()
186 pr_debug("failed to add helper extension area"); in nf_ct_helper_ext_add()
194 struct nf_conntrack_helper *helper = NULL; in __nf_ct_try_assign_helper() local
197 /* We already got a helper explicitly attached (e.g. nft_ct) */ in __nf_ct_try_assign_helper()
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H A Dnf_conntrack_ovs.c15 const struct nf_conntrack_helper *helper; in nf_ct_helper() local
27 helper = rcu_dereference(help->helper); in nf_ct_helper()
28 if (!helper) in nf_ct_helper()
31 if (helper->tuple.src.l3num != NFPROTO_UNSPEC && in nf_ct_helper()
32 helper->tuple.src.l3num != proto) in nf_ct_helper()
56 WARN_ONCE(1, "helper invoked on non-IP family!"); in nf_ct_helper()
60 if (helper->tuple.dst.protonum != proto) in nf_ct_helper()
63 err = helper->help(skb, protoff, ct, ctinfo); in nf_ct_helper()
67 /* Adjust seqs after helper. This is needed due to some helpers (e.g., in nf_ct_helper()
81 struct nf_conntrack_helper *helper; in nf_ct_add_helper() local
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H A Dxt_CT.c77 struct nf_conntrack_helper *helper; in xt_ct_set_helper() local
87 helper = nf_conntrack_helper_try_module_get(helper_name, par->family, in xt_ct_set_helper()
89 if (helper == NULL) { in xt_ct_set_helper()
90 pr_info_ratelimited("No such helper \"%s\"\n", helper_name); in xt_ct_set_helper()
96 nf_conntrack_helper_put(helper); in xt_ct_set_helper()
100 rcu_assign_pointer(help->helper, helper); in xt_ct_set_helper()
142 struct nf_conntrack_helper *helper; in xt_ct_put_helper() local
150 helper = rcu_dereference_raw(help->helper); in xt_ct_put_helper()
151 if (helper) in xt_ct_put_helper()
152 nf_conntrack_helper_put(helper); in xt_ct_put_helper()
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H A Dnf_conntrack_broadcast.c3 * broadcast connection tracking helper
23 const struct nf_conntrack_helper *helper; in nf_conntrack_broadcast_help() local
64 helper = rcu_dereference(help->helper); in nf_conntrack_broadcast_help()
65 if (helper) in nf_conntrack_broadcast_help()
66 exp->tuple.src.u.udp.port = helper->tuple.src.u.udp.port; in nf_conntrack_broadcast_help()
74 rcu_assign_pointer(exp->helper, helper); in nf_conntrack_broadcast_help()
89 MODULE_DESCRIPTION("Broadcast connection tracking helper");
H A Dxt_helper.c29 const struct nf_conntrack_helper *helper; in helper_mt() local
42 helper = rcu_dereference(master_help->helper); in helper_mt()
43 if (!helper) in helper_mt()
49 ret ^= !strncmp(helper->name, info->name, in helper_mt()
50 strlen(helper->name)); in helper_mt()
75 .name = "helper",
H A Dnf_conntrack_expect.c46 /* nf_conntrack_expect helper functions */
318 * master's helper is safe, because the packet holds a reference on
327 struct nf_conntrack_helper *helper = NULL; in nf_ct_expect_init() local
344 helper = rcu_dereference(help->helper); in nf_ct_expect_init()
346 rcu_assign_pointer(exp->helper, helper); in nf_ct_expect_init()
411 struct nf_conntrack_helper *helper; in nf_ct_expect_insert() local
419 helper = rcu_dereference_protected(master_help->helper, in nf_ct_expect_insert()
421 if (helper) { in nf_ct_expect_insert()
423 helper->expect_policy[exp->class].timeout * HZ; in nf_ct_expect_insert()
461 struct nf_conntrack_helper *helper; in __nf_ct_expect_check() local
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H A Dnf_conntrack_netbios_ns.c3 * NetBIOS name service broadcast connection tracking helper
8 * This helper tracks locally originating NetBIOS name service
27 MODULE_DESCRIPTION("NetBIOS name service broadcast connection tracking helper");
47 static struct nf_conntrack_helper helper __read_mostly = {
62 return nf_conntrack_helper_register(&helper); in nf_conntrack_netbios_ns_init()
67 nf_conntrack_helper_unregister(&helper); in nf_conntrack_netbios_ns_fini()
/linux/drivers/net/wireless/marvell/libertas/
H A Dfirmware.c16 const struct firmware *helper, const struct firmware *mainfw) in lbs_fw_loaded() argument
22 /* User must free helper/mainfw */ in lbs_fw_loaded()
23 priv->fw_callback(priv, ret, helper, mainfw); in lbs_fw_loaded()
79 /* No main firmware needed for this helper --> success! */ in helper_firmware_cb()
99 if (!iter->helper) { in load_next_firmware_from_table()
111 do_load_firmware(priv, iter->helper, helper_firmware_cb); in load_next_firmware_from_table()
121 * either a helper firmware and a main firmware (2-stage), or just the helper.
128 * terminated by an entry with a NULL helper name
164 * terminated by an entry with a NULL helper name
165 * @helper: On success, the helper firmware; caller must free
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/linux/drivers/gpu/drm/msm/
H A Dmsm_fbdev.c34 struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par; in FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS() local
35 struct drm_gem_object *bo = msm_framebuffer_bo(helper->fb, 0); in FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS()
42 struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par; in msm_fbdev_fb_destroy() local
43 struct drm_framebuffer *fb = helper->fb; in msm_fbdev_fb_destroy()
48 drm_fb_helper_fini(helper); in msm_fbdev_fb_destroy()
54 drm_client_release(&helper->client); in msm_fbdev_fb_destroy()
66 static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper, in msm_fbdev_fb_dirty() argument
69 struct drm_device *dev = helper->dev; in msm_fbdev_fb_dirty()
76 if (helper->fb->funcs->dirty) { in msm_fbdev_fb_dirty()
77 ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1); in msm_fbdev_fb_dirty()
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/linux/arch/mips/cavium-octeon/executive/
H A DMakefile14 cvmx-helper-board.o cvmx-helper.o cvmx-helper-xaui.o \
15 cvmx-helper-rgmii.o cvmx-helper-sgmii.o cvmx-helper-npi.o \
16 cvmx-helper-loop.o cvmx-helper-spi.o cvmx-helper-util.o \
19 obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o cvmx-boot-vector.o
/linux/Documentation/gpu/
H A Ddrm-kms-helpers.rst2 Mode Setting Helper Functions
5 The DRM subsystem aims for a strong separation between core code and helper
8 large set of helper libraries, which can be combined freely to pick and choose
15 exceptions) can be considered optional helper code.
21 the same set of common helper vtables. For really simple drivers (anything
36 Modeset Helper Reference for Common Vtables
47 Atomic Modeset Helper Functions Reference
62 Helper Functions Reference
77 Atomic State Helper Reference
83 GEM Atomic Helper Reference
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/linux/scripts/
H A Dbpf_doc.py16 helpersDocStart = 'Start of BPF helper function descriptions:'
54 class Helper(APIElement): class
56 An object representing the description of an eBPF helper function.
57 @proto: function prototype of the helper function
58 @desc: textual description of the helper function
59 @ret: description of the return value of the helper function
68 Break down helper function protocol into smaller chunks: return type,
107 list of eBPF helper functions. All the helpers that can be retrieved are
108 stored as Helper object, in the self.helpers() array.
135 return Helper(proto=proto, desc=desc, ret=ret, attrs=attrs)
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/linux/drivers/gpu/drm/omapdrm/
H A Domap_fbdev.c45 struct drm_fb_helper *helper = fbdev->dev->fb_helper; in pan_worker() local
46 struct fb_info *fbi = helper->info; in pan_worker()
47 struct drm_gem_object *bo = drm_gem_fb_get_obj(helper->fb, 0); in pan_worker()
61 struct drm_fb_helper *helper = get_fb(fbi); in FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS() local
65 if (!helper) in FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS()
68 priv = helper->dev->dev_private; in FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS()
94 struct drm_fb_helper *helper = info->par; in omap_fbdev_fb_destroy() local
95 struct drm_framebuffer *fb = helper->fb; in omap_fbdev_fb_destroy()
101 drm_fb_helper_fini(helper); in omap_fbdev_fb_destroy()
106 drm_client_release(&helper->client); in omap_fbdev_fb_destroy()
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/linux/drivers/gpu/drm/exynos/
H A Dexynos_drm_fbdev.c30 struct drm_fb_helper *helper = info->par; in exynos_drm_fb_mmap() local
31 struct drm_gem_object *obj = drm_gem_fb_get_obj(helper->fb, 0); in exynos_drm_fb_mmap()
57 static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, in exynos_drm_fbdev_update() argument
61 struct fb_info *fbi = helper->info; in exynos_drm_fbdev_update()
62 struct drm_framebuffer *fb = helper->fb; in exynos_drm_fbdev_update()
68 drm_fb_helper_fill_info(fbi, helper, sizes); in exynos_drm_fbdev_update()
84 int exynos_drm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, in exynos_drm_fbdev_driver_fbdev_probe() argument
88 struct drm_device *dev = helper->dev; in exynos_drm_fbdev_driver_fbdev_probe()
110 helper->fb = in exynos_drm_fbdev_driver_fbdev_probe()
115 if (IS_ERR(helper->fb)) { in exynos_drm_fbdev_driver_fbdev_probe()
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/linux/tools/testing/selftests/bpf/progs/
H A Dverifier_helper_packet_access.c16 __description("helper access to packet: test1, valid packet_ptr range")
41 __description("helper access to packet: test2, unchecked packet_ptr")
59 __description("helper access to packet: test3, variable add")
89 __description("helper access to packet: test4, packet_ptr with bad range")
114 __description("helper access to packet: test5, packet_ptr with too short range")
138 __description("helper access to packet: test6, cls valid packet_ptr range")
163 __description("helper access to packet: test7, cls unchecked packet_ptr")
181 __description("helper access to packet: test8, cls variable add")
211 __description("helper access to packet: test9, cls packet_ptr with bad range")
236 __description("helper access to packet: test10, cls packet_ptr with too short range")
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H A Dverifier_helper_value_access.c42 __description("helper access to map: full range")
68 __description("helper access to map: partial range")
98 __description("helper access to map: empty range")
125 __description("helper access to map: possibly-empty ange")
154 __description("helper access to map: out-of-bound range")
180 __description("helper access to map: negative range")
205 __description("helper access to adjusted map (via const imm): full range")
233 __description("helper access to adjusted map (via const imm): partial range")
260 __description("helper access to adjusted map (via const imm): empty range")
286 __description("helper access to adjusted map (via const imm): out-of-bound range")
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H A Dverifier_helper_access_var_len.c35 __description("helper access to variable memory: stack, bitwise AND + JMP, correct bounds")
67 __description("helper access to variable memory: stack, bitwise AND, zero included")
87 /* Call bpf_ringbuf_output(), it is one of a few helper functions with\ in stack_bitwise_and_zero_included()
102 __description("helper access to variable memory: stack, bitwise AND + JMP, wrong max")
125 __description("helper access to variable memory: stack, JMP, correct bounds")
157 __description("helper access to variable memory: stack, JMP (signed), correct bounds")
189 __description("helper access to variable memory: stack, JMP, bounds + offset")
213 __description("helper access to variable memory: stack, JMP, wrong max")
236 __description("helper access to variable memory: stack, JMP, no max check")
260 __description("helper access to variable memory: stack, JMP, no min check")
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/linux/drivers/gpu/drm/tegra/
H A Dfbdev.c27 struct drm_fb_helper *helper = info->par; in tegra_fb_mmap() local
31 bo = tegra_fb_get_plane(helper->fb, 0); in tegra_fb_mmap()
42 struct drm_fb_helper *helper = info->par; in tegra_fbdev_fb_destroy() local
43 struct drm_framebuffer *fb = helper->fb; in tegra_fbdev_fb_destroy()
46 drm_fb_helper_fini(helper); in tegra_fbdev_fb_destroy()
55 drm_client_release(&helper->client); in tegra_fbdev_fb_destroy()
70 int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, in tegra_fbdev_driver_fbdev_probe() argument
73 struct tegra_drm *tegra = helper->dev->dev_private; in tegra_fbdev_driver_fbdev_probe()
74 struct drm_device *drm = helper->dev; in tegra_fbdev_driver_fbdev_probe()
76 struct fb_info *info = helper->info; in tegra_fbdev_driver_fbdev_probe()
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/linux/drivers/gpu/drm/
H A Ddrm_fb_helper.c6 * DRM framebuffer helper functions
81 * The fb helper functions are useful to provide an fbdev on top of a drm kernel
83 * helper functions used by many drivers to implement the kernel mode setting
90 * All other functions exported by the fb helper library can be used to
95 * helper must be called first to initialize the minimum required to make
100 * encoders and connectors. To finish up the fbdev helper initialization, the
156 * @fb_helper: driver-allocated fbdev helper, can be NULL
159 * This helper should be called from fbdev emulation's &drm_client_funcs.restore
184 * @info: fbdev registered by the helper
219 struct drm_fb_helper *helper = container_of(work, struct drm_fb_helper, in drm_fb_helper_resume_worker() local
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/linux/tools/testing/vma/
H A Dshared.h57 * Helper function which provides a wrapper around a merge existing VMA
65 * Helper function to allocate a VMA and link it to the tree.
71 /* Helper function providing a dummy vm_ops->close() method.*/
76 /* Helper function to simply allocate a VMA. */
81 /* Helper function to detach and free a VMA. */
84 /* Helper function to allocate a VMA and link it to the tree. */
90 * Helper function to reset the dummy anon_vma to indicate it has not been
96 * Helper function to remove all VMAs and destroy the maple tree associated with
101 /* Helper function to determine if VMA has had vma_start_write() performed. */
111 /* Helper function to specify a VMA's range. */
/linux/tools/testing/selftests/net/netfilter/
H A Dnft_conntrack_helper.sh3 # This tests connection tracking helper assignment:
4 # 1. can attach ftp helper to a connection from nft ruleset.
51 ct helper ftp {
56 tcp dport 2121 ct helper set "ftp"
60 tcp dport 2121 ct helper set "ftp"
79 …xec "$netns" conntrack -L -f $family -p tcp --dport "$port" 2> /dev/null |grep -q 'helper=ftp';then
81 echo "FAIL: ${netns} did not show attached helper $message" 1>&2
84 echo "PASS: ${netns} did not show attached helper $message" 1>&2
88 echo "PASS: ${netns} connection on port $port has ftp helper attached" 1>&2
90 echo "FAIL: ${netns} connection on port $port has ftp helper attached" 1>&2
/linux/include/linux/
H A Dmii.h93 * A small helper function for a common case. Returns one
111 * A small helper function that translates ethtool advertisement
139 * A small helper function that translates linkmode advertisement
167 * A small helper function that translates MII_ADVERTISE bits
194 * A small helper function that translates ethtool advertisement
214 * A small helper function that translates linkmode advertisement
237 * A small helper function that translates MII_CTRL1000
257 * A small helper function that translates MII_LPA
275 * A small helper function that translates MII_STAT1000
296 * A small helper function that translates MII_STAT1000 bits, when in
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/linux/drivers/net/ethernet/mellanox/mlx5/core/en/
H A Dtc_priv.h48 /* Helper struct for accessing a struct containing list_head array.
50 * |- Helper array
51 * [0] Helper item 0
54 * [1] Helper item 1
58 * 1. Get the helper item from the list_head item using
59 * helper item =
60 * container_of(list_head item, helper struct type, list_head field)
61 * 2. Get the contining struct from the helper item and its index in the array:
63 * container_of(helper item, containing struct type, helper field[index])
/linux/drivers/media/v4l2-core/
H A Dv4l2-ctrls-api.c21 /* Internal temporary helper struct, one for each v4l2_ext_control */
35 * Helper functions to copy control payload data from kernel space to
39 /* Helper function: copy the given control value back to the caller */
69 /* Helper function: copy the current control value back to the caller */
75 /* Helper function: copy the new control value back to the caller */
82 /* Helper function: copy the request value back to the caller */
89 /* Helper function: copy the initial control value back to the caller */
97 /* Helper function: copy the minimum control value back to the caller */
105 /* Helper function: copy the maximum control value back to the caller */
113 /* Helper function: copy the caller-provider value as the new control value */
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