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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /net/ethtool/privflags.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij:
"Core changes:
- Use the non-blocking mux_state_try_select() in the generic MUX pin
control back-end
- Free pin maps on pinctrl_generic_to_map() failure in the core
helpers
New hardware pin control:
- Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
(this is for the low power audio, LPASS = Low Power Audio SubSystem
portions)
- Upboard support on top of the Intel pin controller
- Apple T6030 and T6031 support (just compatible strings)
- Samsung Exynos 8855 SoC
- Mediatek MT6858 SoC
- Rockchip RK3308B and RV1106 SoCs
- Airoha EN7523 and AN7563 SoCs
Improvements:
- Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable
- Qualcomm improvements on top of the Qualcomm PDC (power domain
controller) irqchip improvements from tglx:s tree
- Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups
- The NPCM8xx driver has been put into shape fixing many pin and
group definitions
- Some non-urgent Tegra 264 pin assignments are fixed up
- Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
pin assignments, missing features etc"
* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
pinctrl: meson: sync some modify from A4
pinctrl: meson: a4: Add input enable pin configuration
pinctrl: realtek: rtd1625: remove unused group name spdif_sel
pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
Revert "Merge branch 'ib-rsk7204' into devel"
pinctrl: rockchip: Add RV1106 pinctrl support
dt-bindings: pinctrl: rockchip: Add RV1106 compatible
pinctrl: rockchip: Decode drive strength in the get function
pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
pinctrl: airoha: add support of an7563 SoC
dt-bindings: pinctrl: airoha: add support of an7563 pin controller
pinctrl: airoha: try to find chip scu node by phandle first
pinctrl: airoha: add support of en7523 SoC
dt-bindings: pinctrl: airoha: add support of en7523 pin controller
pinctrl: airoha: an7583: add support for olt pinmux
pinctrl: airoha: an7583: add support for pon_alt pinmux
pinctrl: airoha: an7583: add support for npu_uart pinmux
dt-bindings: pinctrl: airoha: an7583: add missed features
...
Diffstat (limited to 'net/ethtool/privflags.c')
| -rw-r--r-- | net/ethtool/privflags.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/net/ethtool/privflags.c b/net/ethtool/privflags.c new file mode 100644 index 000000000..46a4d2a43 --- /dev/null +++ b/net/ethtool/privflags.c @@ -0,0 +1,195 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include "bitset.h" +#include "common.h" +#include "netlink.h" + +struct privflags_req_info { + struct ethnl_req_info base; +}; + +struct privflags_reply_data { + struct ethnl_reply_data base; + const char (*priv_flag_names)[ETH_GSTRING_LEN]; + unsigned int n_priv_flags; + u32 priv_flags; +}; + +#define PRIVFLAGS_REPDATA(__reply_base) \ + container_of(__reply_base, struct privflags_reply_data, base) + +const struct nla_policy ethnl_privflags_get_policy[] = { + [ETHTOOL_A_PRIVFLAGS_HEADER] = + NLA_POLICY_NESTED(ethnl_header_policy), +}; + +static int ethnl_get_priv_flags_info(struct net_device *dev, + unsigned int *count, + const char (**names)[ETH_GSTRING_LEN]) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + int nflags; + + nflags = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS); + if (nflags < 0) + return nflags; + + if (names) { + *names = kcalloc(nflags, ETH_GSTRING_LEN, GFP_KERNEL); + if (!*names) + return -ENOMEM; + ops->get_strings(dev, ETH_SS_PRIV_FLAGS, (u8 *)*names); + } + + /* We can pass more than 32 private flags to userspace via netlink but + * we cannot get more with ethtool_ops::get_priv_flags(). Note that we + * must not adjust nflags before allocating the space for flag names + * as the buffer must be large enough for all flags. + */ + if (WARN_ONCE(nflags > 32, + "device %s reports more than 32 private flags (%d)\n", + netdev_name(dev), nflags)) + nflags = 32; + *count = nflags; + + return 0; +} + +static int privflags_prepare_data(const struct ethnl_req_info *req_base, + struct ethnl_reply_data *reply_base, + const struct genl_info *info) +{ + struct privflags_reply_data *data = PRIVFLAGS_REPDATA(reply_base); + struct net_device *dev = reply_base->dev; + const char (*names)[ETH_GSTRING_LEN]; + const struct ethtool_ops *ops; + unsigned int nflags; + int ret; + + ops = dev->ethtool_ops; + if (!ops->get_priv_flags || !ops->get_sset_count || !ops->get_strings) + return -EOPNOTSUPP; + ret = ethnl_ops_begin(dev); + if (ret < 0) + return ret; + + ret = ethnl_get_priv_flags_info(dev, &nflags, &names); + if (ret < 0) + goto out_ops; + data->priv_flags = ops->get_priv_flags(dev); + data->priv_flag_names = names; + data->n_priv_flags = nflags; + +out_ops: + ethnl_ops_complete(dev); + return ret; +} + +static int privflags_reply_size(const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + const struct privflags_reply_data *data = PRIVFLAGS_REPDATA(reply_base); + bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; + const u32 all_flags = ~(u32)0 >> (32 - data->n_priv_flags); + + return ethnl_bitset32_size(&data->priv_flags, &all_flags, + data->n_priv_flags, + data->priv_flag_names, compact); +} + +static int privflags_fill_reply(struct sk_buff *skb, + const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + const struct privflags_reply_data *data = PRIVFLAGS_REPDATA(reply_base); + bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; + const u32 all_flags = ~(u32)0 >> (32 - data->n_priv_flags); + + return ethnl_put_bitset32(skb, ETHTOOL_A_PRIVFLAGS_FLAGS, + &data->priv_flags, &all_flags, + data->n_priv_flags, data->priv_flag_names, + compact); +} + +static void privflags_cleanup_data(struct ethnl_reply_data *reply_data) +{ + struct privflags_reply_data *data = PRIVFLAGS_REPDATA(reply_data); + + kfree(data->priv_flag_names); +} + +/* PRIVFLAGS_SET */ + +const struct nla_policy ethnl_privflags_set_policy[] = { + [ETHTOOL_A_PRIVFLAGS_HEADER] = + NLA_POLICY_NESTED(ethnl_header_policy), + [ETHTOOL_A_PRIVFLAGS_FLAGS] = { .type = NLA_NESTED }, +}; + +static int +ethnl_set_privflags_validate(struct ethnl_req_info *req_info, + struct genl_info *info) +{ + const struct ethtool_ops *ops = req_info->dev->ethtool_ops; + + if (!info->attrs[ETHTOOL_A_PRIVFLAGS_FLAGS]) + return -EINVAL; + + if (!ops->get_priv_flags || !ops->set_priv_flags || + !ops->get_sset_count || !ops->get_strings) + return -EOPNOTSUPP; + return 1; +} + +static int +ethnl_set_privflags(struct ethnl_req_info *req_info, struct genl_info *info) +{ + const char (*names)[ETH_GSTRING_LEN] = NULL; + struct net_device *dev = req_info->dev; + struct nlattr **tb = info->attrs; + unsigned int nflags; + bool mod = false; + bool compact; + u32 flags; + int ret; + + ret = ethnl_bitset_is_compact(tb[ETHTOOL_A_PRIVFLAGS_FLAGS], &compact); + if (ret < 0) + return ret; + + ret = ethnl_get_priv_flags_info(dev, &nflags, compact ? NULL : &names); + if (ret < 0) + return ret; + flags = dev->ethtool_ops->get_priv_flags(dev); + + ret = ethnl_update_bitset32(&flags, nflags, + tb[ETHTOOL_A_PRIVFLAGS_FLAGS], names, + info->extack, &mod); + if (ret < 0 || !mod) + goto out_free; + ret = dev->ethtool_ops->set_priv_flags(dev, flags); + if (ret < 0) + goto out_free; + ret = 1; + +out_free: + kfree(names); + return ret; +} + +const struct ethnl_request_ops ethnl_privflags_request_ops = { + .request_cmd = ETHTOOL_MSG_PRIVFLAGS_GET, + .reply_cmd = ETHTOOL_MSG_PRIVFLAGS_GET_REPLY, + .hdr_attr = ETHTOOL_A_PRIVFLAGS_HEADER, + .req_info_size = sizeof(struct privflags_req_info), + .reply_data_size = sizeof(struct privflags_reply_data), + + .prepare_data = privflags_prepare_data, + .reply_size = privflags_reply_size, + .fill_reply = privflags_fill_reply, + .cleanup_data = privflags_cleanup_data, + + .set_validate = ethnl_set_privflags_validate, + .set = ethnl_set_privflags, + .set_ntf_cmd = ETHTOOL_MSG_PRIVFLAGS_NTF, +}; |
