net-veth: Add type safety to veth_xdp_to_ptr() and veth_ptr_to_xdp() - linux-dev - Linux kernel development work

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author	Maciej Żenczykowski <maze@google.com>	2020-08-18 19:00:27 -0700
committer	Alexei Starovoitov <ast@kernel.org>	2020-08-19 14:10:38 -0700
commit	defcffeb517b3965e64f4e5531db3b452dccbfc5 (patch)
tree	4f8ce3f51a11609b12481998eb5bef4085a071ac /tools/perf/scripts/python/exported-sql-viewer.py
parent	net-tun: Eliminate two tun/xdp related function calls from vhost-net (diff)

net-veth: Add type safety to veth_xdp_to_ptr() and veth_ptr_to_xdp()

This reduces likelihood of incorrect use. Test: builds Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200819020027.4072288-1-zenczykowski@gmail.com

Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')

0 files changed, 0 insertions, 0 deletions

// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for the 1250-EV1 audio I/O module * * Copyright 2011 Wolfson Microelectronics plc */ #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/gpio.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/wm1250-ev1.h> static const char *wm1250_gpio_names[WM1250_EV1_NUM_GPIOS] = { "WM1250 CLK_ENA", "WM1250 CLK_SEL0", "WM1250 CLK_SEL1", "WM1250 OSR", "WM1250 MASTER", }; struct wm1250_priv { struct gpio gpios[WM1250_EV1_NUM_GPIOS]; }; static int wm1250_ev1_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { struct wm1250_priv *wm1250 = dev_get_drvdata(component->dev); int ena; if (wm1250) ena = wm1250->gpios[WM1250_EV1_GPIO_CLK_ENA].gpio; else ena = -1; switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: if (ena >= 0) gpio_set_value_cansleep(ena, 1); break; case SND_SOC_BIAS_OFF: if (ena >= 0) gpio_set_value_cansleep(ena, 0); break; } return 0; } static const struct snd_soc_dapm_widget wm1250_ev1_dapm_widgets[] = { SND_SOC_DAPM_ADC("ADC", "wm1250-ev1 Capture", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC("DAC", "wm1250-ev1 Playback", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_INPUT("WM1250 Input"), SND_SOC_DAPM_OUTPUT("WM1250 Output"), }; static const struct snd_soc_dapm_route wm1250_ev1_dapm_routes[] = { { "ADC", NULL, "WM1250 Input" }, { "WM1250 Output", NULL, "DAC" }, }; static int wm1250_ev1_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct wm1250_priv *wm1250 = snd_soc_component_get_drvdata(dai->component); switch (params_rate(params)) { case 8000: gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio, 1); gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio, 1); break; case 16000: gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio, 0); gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio, 1); break; case 32000: gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio, 1); gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio, 0); break; case 64000: gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio, 0); gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio, 0); break; default: return -EINVAL; } return 0; } static const struct snd_soc_dai_ops wm1250_ev1_ops = { .hw_params = wm1250_ev1_hw_params, }; #define WM1250_EV1_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_64000) static struct snd_soc_dai_driver wm1250_ev1_dai = { .name = "wm1250-ev1", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = WM1250_EV1_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = WM1250_EV1_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .ops = &wm1250_ev1_ops, }; static const struct snd_soc_component_driver soc_component_dev_wm1250_ev1 = { .dapm_widgets = wm1250_ev1_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm1250_ev1_dapm_widgets), .dapm_routes = wm1250_ev1_dapm_routes, .num_dapm_routes = ARRAY_SIZE(wm1250_ev1_dapm_routes), .set_bias_level = wm1250_ev1_set_bias_level, .use_pmdown_time = 1, .endianness = 1, }; static int wm1250_ev1_pdata(struct i2c_client *i2c) { struct wm1250_ev1_pdata *pdata = dev_get_platdata(&i2c->dev); struct wm1250_priv *wm1250; int i, ret; if (!pdata) return 0; wm1250 = devm_kzalloc(&i2c->dev, sizeof(*wm1250), GFP_KERNEL); if (!wm1250) { ret = -ENOMEM; goto err; } for (i = 0; i < ARRAY_SIZE(wm1250->gpios); i++) { wm1250->gpios[i].gpio = pdata->gpios[i]; wm1250->gpios[i].label = wm1250_gpio_names[i]; wm1250->gpios[i].flags = GPIOF_OUT_INIT_LOW; } wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].flags = GPIOF_OUT_INIT_HIGH; wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].flags = GPIOF_OUT_INIT_HIGH; ret = gpio_request_array(wm1250->gpios, ARRAY_SIZE(wm1250->gpios)); if (ret != 0) { dev_err(&i2c->dev, "Failed to get GPIOs: %d\n", ret); goto err; } dev_set_drvdata(&i2c->dev, wm1250); return ret; err: return ret; } static void wm1250_ev1_free(struct i2c_client *i2c) { struct wm1250_priv *wm1250 = dev_get_drvdata(&i2c->dev); if (wm1250) gpio_free_array(wm1250->gpios, ARRAY_SIZE(wm1250->gpios)); } static int wm1250_ev1_probe(struct i2c_client *i2c) { int id, board, rev, ret; dev_set_drvdata(&i2c->dev, NULL); board = i2c_smbus_read_byte_data(i2c, 0); if (board < 0) { dev_err(&i2c->dev, "Failed to read ID: %d\n", board); return board; } id = (board & 0xfe) >> 2; rev = board & 0x3; if (id != 1) { dev_err(&i2c->dev, "Unknown board ID %d\n", id); return -ENODEV; } dev_info(&i2c->dev, "revision %d\n", rev + 1); ret = wm1250_ev1_pdata(i2c); if (ret != 0) return ret; ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_wm1250_ev1, &wm1250_ev1_dai, 1); if (ret != 0) { dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); wm1250_ev1_free(i2c); return ret; } return 0; } static void wm1250_ev1_remove(struct i2c_client *i2c) { wm1250_ev1_free(i2c); } static const struct i2c_device_id wm1250_ev1_i2c_id[] = { { "wm1250-ev1", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, wm1250_ev1_i2c_id); static struct i2c_driver wm1250_ev1_i2c_driver = { .driver = { .name = "wm1250-ev1", }, .probe = wm1250_ev1_probe, .remove = wm1250_ev1_remove, .id_table = wm1250_ev1_i2c_id, }; module_i2c_driver(wm1250_ev1_i2c_driver); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_DESCRIPTION("WM1250-EV1 audio I/O module driver"); MODULE_LICENSE("GPL");


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