/* * PCM179X ASoC I2C driver * * Copyright (c) Teenage Engineering AB 2016 * * Jacob Siverskog * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include "pcm179x.h" static int pcm179x_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct regmap *regmap; int ret; regmap = devm_regmap_init_i2c(client, &pcm179x_regmap_config); if (IS_ERR(regmap)) { ret = PTR_ERR(regmap); dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret); return ret; } return pcm179x_common_init(&client->dev, regmap); } static int pcm179x_i2c_remove(struct i2c_client *client) { return pcm179x_common_exit(&client->dev); } static const struct of_device_id pcm179x_of_match[] = { { .compatible = "ti,pcm1792a", }, { } }; MODULE_DEVICE_TABLE(of, pcm179x_of_match); static const struct i2c_device_id pcm179x_i2c_ids[] = { { "pcm179x", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids); static struct i2c_driver pcm179x_i2c_driver = { .driver = { .name = "pcm179x", .of_match_table = of_match_ptr(pcm179x_of_match), }, .id_table = pcm179x_i2c_ids, .probe = pcm179x_i2c_probe, .remove = pcm179x_i2c_remove, }; module_i2c_driver(pcm179x_i2c_driver); MODULE_DESCRIPTION("ASoC PCM179X I2C driver"); MODULE_AUTHOR("Jacob Siverskog "); MODULE_LICENSE("GPL"); bpf-prologue.h?h=nds-private-remove&id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>treecommitdiff
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /tools/perf/util/bpf-prologue.h
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/util/bpf-prologue.h')