diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/kobject.c | 4 | ||||
| -rw-r--r-- | lib/kobject_uevent.c | 3 | ||||
| -rw-r--r-- | lib/smp_processor_id.c | 3 | ||||
| -rw-r--r-- | lib/string.c | 2 | ||||
| -rw-r--r-- | lib/test_firmware.c | 17 | ||||
| -rw-r--r-- | lib/test_kmod.c | 14 | ||||
| -rw-r--r-- | lib/vsprintf.c | 87 |
7 files changed, 87 insertions, 43 deletions
diff --git a/lib/kobject.c b/lib/kobject.c index 06b849eee0ca..afd5a3fc6123 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * kobject.c - library routines for handling generic kernel objects * @@ -5,9 +6,6 @@ * Copyright (c) 2006-2007 Greg Kroah-Hartman <greg@kroah.com> * Copyright (c) 2006-2007 Novell Inc. * - * This file is released under the GPLv2. - * - * * Please see the file Documentation/kobject.txt for critical information * about using the kobject interface. */ diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 2615074d3de5..9fe6ec8fda28 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * kernel userspace event delivery * @@ -5,8 +6,6 @@ * Copyright (C) 2004 Novell, Inc. All rights reserved. * Copyright (C) 2004 IBM, Inc. All rights reserved. * - * Licensed under the GNU GPL v2. - * * Authors: * Robert Love <rml@novell.com> * Kay Sievers <kay.sievers@vrfy.org> diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index 835cc6df2776..85925aaa4fff 100644 --- a/lib/smp_processor_id.c +++ b/lib/smp_processor_id.c @@ -5,7 +5,6 @@ * DEBUG_PREEMPT variant of smp_processor_id(). */ #include <linux/export.h> -#include <linux/kallsyms.h> #include <linux/sched.h> notrace static unsigned int check_preemption_disabled(const char *what1, @@ -43,7 +42,7 @@ notrace static unsigned int check_preemption_disabled(const char *what1, printk(KERN_ERR "BUG: using %s%s() in preemptible [%08x] code: %s/%d\n", what1, what2, preempt_count() - 1, current->comm, current->pid); - print_symbol("caller is %s\n", (long)__builtin_return_address(0)); + printk("caller is %pS\n", __builtin_return_address(0)); dump_stack(); out_enable: diff --git a/lib/string.c b/lib/string.c index 64a9e33f1daa..2c0900a5d51a 100644 --- a/lib/string.c +++ b/lib/string.c @@ -203,7 +203,7 @@ ssize_t strscpy(char *dest, const char *src, size_t count) while (max >= sizeof(unsigned long)) { unsigned long c, data; - c = *(unsigned long *)(src+res); + c = read_word_at_a_time(src+res); if (has_zero(c, &data, &constants)) { data = prep_zero_mask(c, data, &constants); data = create_zero_mask(data); diff --git a/lib/test_firmware.c b/lib/test_firmware.c index 64a4c76cba2b..078a61480573 100644 --- a/lib/test_firmware.c +++ b/lib/test_firmware.c @@ -96,7 +96,7 @@ struct test_config { struct device *device); }; -struct test_config *test_fw_config; +static struct test_config *test_fw_config; static ssize_t test_fw_misc_read(struct file *f, char __user *buf, size_t size, loff_t *offset) @@ -359,7 +359,7 @@ static ssize_t config_name_show(struct device *dev, { return config_test_show_str(buf, test_fw_config->name); } -static DEVICE_ATTR(config_name, 0644, config_name_show, config_name_store); +static DEVICE_ATTR_RW(config_name); static ssize_t config_num_requests_store(struct device *dev, struct device_attribute *attr, @@ -371,6 +371,7 @@ static ssize_t config_num_requests_store(struct device *dev, if (test_fw_config->reqs) { pr_err("Must call release_all_firmware prior to changing config\n"); rc = -EINVAL; + mutex_unlock(&test_fw_mutex); goto out; } mutex_unlock(&test_fw_mutex); @@ -388,8 +389,7 @@ static ssize_t config_num_requests_show(struct device *dev, { return test_dev_config_show_u8(buf, test_fw_config->num_requests); } -static DEVICE_ATTR(config_num_requests, 0644, config_num_requests_show, - config_num_requests_store); +static DEVICE_ATTR_RW(config_num_requests); static ssize_t config_sync_direct_store(struct device *dev, struct device_attribute *attr, @@ -411,8 +411,7 @@ static ssize_t config_sync_direct_show(struct device *dev, { return test_dev_config_show_bool(buf, test_fw_config->sync_direct); } -static DEVICE_ATTR(config_sync_direct, 0644, config_sync_direct_show, - config_sync_direct_store); +static DEVICE_ATTR_RW(config_sync_direct); static ssize_t config_send_uevent_store(struct device *dev, struct device_attribute *attr, @@ -428,8 +427,7 @@ static ssize_t config_send_uevent_show(struct device *dev, { return test_dev_config_show_bool(buf, test_fw_config->send_uevent); } -static DEVICE_ATTR(config_send_uevent, 0644, config_send_uevent_show, - config_send_uevent_store); +static DEVICE_ATTR_RW(config_send_uevent); static ssize_t config_read_fw_idx_store(struct device *dev, struct device_attribute *attr, @@ -445,8 +443,7 @@ static ssize_t config_read_fw_idx_show(struct device *dev, { return test_dev_config_show_u8(buf, test_fw_config->read_fw_idx); } -static DEVICE_ATTR(config_read_fw_idx, 0644, config_read_fw_idx_show, - config_read_fw_idx_store); +static DEVICE_ATTR_RW(config_read_fw_idx); static ssize_t trigger_request_store(struct device *dev, diff --git a/lib/test_kmod.c b/lib/test_kmod.c index 337f408b4de6..e372b97eee13 100644 --- a/lib/test_kmod.c +++ b/lib/test_kmod.c @@ -694,8 +694,7 @@ static ssize_t config_test_driver_show(struct device *dev, return config_test_show_str(&test_dev->config_mutex, buf, config->test_driver); } -static DEVICE_ATTR(config_test_driver, 0644, config_test_driver_show, - config_test_driver_store); +static DEVICE_ATTR_RW(config_test_driver); static ssize_t config_test_fs_store(struct device *dev, struct device_attribute *attr, @@ -726,8 +725,7 @@ static ssize_t config_test_fs_show(struct device *dev, return config_test_show_str(&test_dev->config_mutex, buf, config->test_fs); } -static DEVICE_ATTR(config_test_fs, 0644, config_test_fs_show, - config_test_fs_store); +static DEVICE_ATTR_RW(config_test_fs); static int trigger_config_run_type(struct kmod_test_device *test_dev, enum kmod_test_case test_case, @@ -1012,8 +1010,7 @@ static ssize_t config_num_threads_show(struct device *dev, return test_dev_config_show_int(test_dev, buf, config->num_threads); } -static DEVICE_ATTR(config_num_threads, 0644, config_num_threads_show, - config_num_threads_store); +static DEVICE_ATTR_RW(config_num_threads); static ssize_t config_test_case_store(struct device *dev, struct device_attribute *attr, @@ -1037,8 +1034,7 @@ static ssize_t config_test_case_show(struct device *dev, return test_dev_config_show_uint(test_dev, buf, config->test_case); } -static DEVICE_ATTR(config_test_case, 0644, config_test_case_show, - config_test_case_store); +static DEVICE_ATTR_RW(config_test_case); static ssize_t test_result_show(struct device *dev, struct device_attribute *attr, @@ -1049,7 +1045,7 @@ static ssize_t test_result_show(struct device *dev, return test_dev_config_show_int(test_dev, buf, config->test_result); } -static DEVICE_ATTR(test_result, 0644, test_result_show, test_result_store); +static DEVICE_ATTR_RW(test_result); #define TEST_KMOD_DEV_ATTR(name) &dev_attr_##name.attr diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 2b18135446dc..77ee6ced11b1 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -42,7 +42,6 @@ #include "../mm/internal.h" /* For the trace_print_flags arrays */ #include <asm/page.h> /* for PAGE_SIZE */ -#include <asm/sections.h> /* for dereference_function_descriptor() */ #include <asm/byteorder.h> /* cpu_to_le16 */ #include <linux/string_helpers.h> @@ -1863,10 +1862,10 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, switch (*fmt) { case 'F': case 'f': - ptr = dereference_function_descriptor(ptr); - /* Fallthrough */ case 'S': case 's': + ptr = dereference_symbol_descriptor(ptr); + /* Fallthrough */ case 'B': return symbol_string(buf, end, ptr, spec, fmt); case 'R': @@ -2517,29 +2516,34 @@ int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args) { struct printf_spec spec = {0}; char *str, *end; + int width; str = (char *)bin_buf; end = (char *)(bin_buf + size); #define save_arg(type) \ -do { \ +({ \ + unsigned long long value; \ if (sizeof(type) == 8) { \ - unsigned long long value; \ + unsigned long long val8; \ str = PTR_ALIGN(str, sizeof(u32)); \ - value = va_arg(args, unsigned long long); \ + val8 = va_arg(args, unsigned long long); \ if (str + sizeof(type) <= end) { \ - *(u32 *)str = *(u32 *)&value; \ - *(u32 *)(str + 4) = *((u32 *)&value + 1); \ + *(u32 *)str = *(u32 *)&val8; \ + *(u32 *)(str + 4) = *((u32 *)&val8 + 1); \ } \ + value = val8; \ } else { \ - unsigned long value; \ + unsigned int val4; \ str = PTR_ALIGN(str, sizeof(type)); \ - value = va_arg(args, int); \ + val4 = va_arg(args, int); \ if (str + sizeof(type) <= end) \ - *(typeof(type) *)str = (type)value; \ + *(typeof(type) *)str = (type)(long)val4; \ + value = (unsigned long long)val4; \ } \ str += sizeof(type); \ -} while (0) + value; \ +}) while (*fmt) { int read = format_decode(fmt, &spec); @@ -2555,7 +2559,10 @@ do { \ case FORMAT_TYPE_WIDTH: case FORMAT_TYPE_PRECISION: - save_arg(int); + width = (int)save_arg(int); + /* Pointers may require the width */ + if (*fmt == 'p') + set_field_width(&spec, width); break; case FORMAT_TYPE_CHAR: @@ -2577,7 +2584,27 @@ do { \ } case FORMAT_TYPE_PTR: - save_arg(void *); + /* Dereferenced pointers must be done now */ + switch (*fmt) { + /* Dereference of functions is still OK */ + case 'S': + case 's': + case 'F': + case 'f': + save_arg(void *); + break; + default: + if (!isalnum(*fmt)) { + save_arg(void *); + break; + } + str = pointer(fmt, str, end, va_arg(args, void *), + spec); + if (str + 1 < end) + *str++ = '\0'; + else + end[-1] = '\0'; /* Must be nul terminated */ + } /* skip all alphanumeric pointer suffixes */ while (isalnum(*fmt)) fmt++; @@ -2729,11 +2756,39 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) break; } - case FORMAT_TYPE_PTR: - str = pointer(fmt, str, end, get_arg(void *), spec); + case FORMAT_TYPE_PTR: { + bool process = false; + int copy, len; + /* Non function dereferences were already done */ + switch (*fmt) { + case 'S': + case 's': + case 'F': + case 'f': + process = true; + break; + default: + if (!isalnum(*fmt)) { + process = true; + break; + } + /* Pointer dereference was already processed */ + if (str < end) { + len = copy = strlen(args); + if (copy > end - str) + copy = end - str; + memcpy(str, args, copy); + str += len; + args += len; + } + } + if (process) + str = pointer(fmt, str, end, get_arg(void *), spec); + while (isalnum(*fmt)) fmt++; break; + } case FORMAT_TYPE_PERCENT_CHAR: if (str < end) |
