mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
- printk fourcc modifier support added %p4cc core: - drm_crtc_commit_wait - atomic plane state helpers reworked for full state - dma-buf heaps API rework - edid: rework and improvements for displayid dp-mst: - better topology logging bridge: - Chipone ICN6211 - Lontium LT8912B - anx7625 regulator support panel: - fix lt9611 4k panels handling simple-kms: - add plane state helpers ttm: - debugfs support - removal of unused sysfs - ignore signaled moved fences - ioremap buffer according to mem caching i915: - Alderlake S enablement - Conversion to dma_resv_locking - Bring back watchdog timeout support - legacy ioctl cleanups - add GEM TDDO and RFC process - DG1 LMEM preparation work - intel_display.c refactoring - Gen9/TGL PCH combination support - eDP MSO Support - multiple PSR instance support - Link training debug updates - Disable PSR2 support on JSL/EHL - DDR5/LPDDR5 support for bw calcs - LSPCON limited to gen9/10 platforms - HSW/BDW async flip/VTd corruption workaround = SAGV watermakr fixes - SNB hard hang on ring resume fix - Limit imported dma-buf size - move to use new tasklet API - refactor KBL/TGL/ADL-S display/gt steppings - refactoring legacy DP/HDMI, FB plane code out amdgpu: - uapi: add ioctl to query video capabilities - Iniital AMD Freesync HDMI support - Initial Adebaran support - 10bpc dithering improvements - DCN secure display support - Drop legacy IO BAR requirements - PCIE/S0ix/RAS/Prime/Reset fixes - Display ASSR support - SMU gfx busy queues for RV/PCO - Initial LTTPR display work amdkfd: - MMU notifier fixes - APU fixes radeon: - debugfs cleanps - fw error handling ifix - Flexible array cleanups msm: - big DSI phy/pll cleanup - sc7280 initial support - commong bandwidth scaling path - shrinker locking contention fixes - unpin/swap support for GEM objcets ast: - cursor plane handling reworked tegra: - don't register DP AUX channels before connectors zynqmp: - fix OOB struct padding memset gma500: - drop ttm and medfield support exynos: - request_irq cleanup function mediatek: - fine tune line time for EOTp - MT8192 dpi support - atomic crtc config updates - don't support HDMI connector creation mxsdb: - imx8mm support panfrost: -= MMU IRQ handling rework qxl: - locking fixes - resource deallocation changes sun4i: - add alpha properties to UI/VI layers vc4: - RPi4 CEC support vmwgfx: - doc cleanups arc: - moved to drm/tiny -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJgiNSVAAoJEAx081l5xIa+fvYP/1206BfOYOx5opt5K3By06ZY zrOsbeaqFdHzfUR7xVwO4vqQNhkX4Pt8H/U7uYZx8PRdrXzGENwWLIaIskyUrKOd BtwNqUr0ZXJGDlGg26StnUHKeAXuYXlpBKLta5y4LUTkI+bm6V/oVaDMq4dnah70 2CXS4C2mnaFRLBzuRlraxoGFN4eZkz6Waeyo6PJxn/l2GE2gw+jho0Yrh8e8F2w5 EjQeNF22/uHwznov03XFJlyugecuBDbE8A6Ma/znnkVdBXcT94eUMugbKOKi4Nn6 PuJOEdJxmj/9s3oi6kBERc8dvpOj0O+8Vp+xOzn2U3BVXebvu7VoJsq6FcAvL5lN ltj4iErxUlEud2GRIVUMx8OTFiKj4ThRFJ2/8Uf22r3P7RHO5E9BLnZBzqIAhDVr s2cDBMItcxcVHRCmE04h12XAO4libZBb2TVjbqG94Acq7beR76pMszFrmxPmHBEm NGe1s7+ajxMzsq/NIsk4XAhqSmJo6+ujKyyVnrgvKUVeEaWW1U4YvjhJaetnP4fB 47gF24wOSNFwiCUZlqaIpp/MR4Z8YmaJ7tayWQq4Oj/neWe/yc8xQgQIuE8GL20j P9eNQNvlBnoxkz275M9x4kVhJ5FRjr7OYnd3sFVnALuj6fnL3Z1RXLqI1lNtIz1d YM89veZuNxMaiDz8roPH =bLWZ -----END PGP SIGNATURE----- Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "The usual lots of work all over the place. i915 has gotten some Alderlake work and prelim DG1 code, along with a major locking rework over the GEM code, and brings back the property of timing out long running jobs using a watchdog. amdgpu has some Alderbran support (new GPU), freesync HDMI support along with a lot other fixes. Outside of the drm, there is a new printf specifier added which should have all the correct acks/sobs: - printk fourcc modifier support added %p4cc Summary: core: - drm_crtc_commit_wait - atomic plane state helpers reworked for full state - dma-buf heaps API rework - edid: rework and improvements for displayid dp-mst: - better topology logging bridge: - Chipone ICN6211 - Lontium LT8912B - anx7625 regulator support panel: - fix lt9611 4k panels handling simple-kms: - add plane state helpers ttm: - debugfs support - removal of unused sysfs - ignore signaled moved fences - ioremap buffer according to mem caching i915: - Alderlake S enablement - Conversion to dma_resv_locking - Bring back watchdog timeout support - legacy ioctl cleanups - add GEM TDDO and RFC process - DG1 LMEM preparation work - intel_display.c refactoring - Gen9/TGL PCH combination support - eDP MSO Support - multiple PSR instance support - Link training debug updates - Disable PSR2 support on JSL/EHL - DDR5/LPDDR5 support for bw calcs - LSPCON limited to gen9/10 platforms - HSW/BDW async flip/VTd corruption workaround - SAGV watermark fixes - SNB hard hang on ring resume fix - Limit imported dma-buf size - move to use new tasklet API - refactor KBL/TGL/ADL-S display/gt steppings - refactoring legacy DP/HDMI, FB plane code out amdgpu: - uapi: add ioctl to query video capabilities - Iniital AMD Freesync HDMI support - Initial Adebaran support - 10bpc dithering improvements - DCN secure display support - Drop legacy IO BAR requirements - PCIE/S0ix/RAS/Prime/Reset fixes - Display ASSR support - SMU gfx busy queues for RV/PCO - Initial LTTPR display work amdkfd: - MMU notifier fixes - APU fixes radeon: - debugfs cleanps - fw error handling ifix - Flexible array cleanups msm: - big DSI phy/pll cleanup - sc7280 initial support - commong bandwidth scaling path - shrinker locking contention fixes - unpin/swap support for GEM objcets ast: - cursor plane handling reworked tegra: - don't register DP AUX channels before connectors zynqmp: - fix OOB struct padding memset gma500: - drop ttm and medfield support exynos: - request_irq cleanup function mediatek: - fine tune line time for EOTp - MT8192 dpi support - atomic crtc config updates - don't support HDMI connector creation mxsdb: - imx8mm support panfrost: - MMU IRQ handling rework qxl: - locking fixes - resource deallocation changes sun4i: - add alpha properties to UI/VI layers vc4: - RPi4 CEC support vmwgfx: - doc cleanups arc: - moved to drm/tiny" * tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits) drm/ttm: Don't count pages in SG BOs against pages_limit drm/ttm: fix return value check drm/bridge: lt8912b: fix incorrect handling of of_* return values drm: bridge: fix LONTIUM use of mipi_dsi_() functions drm: bridge: fix ANX7625 use of mipi_dsi_() functions drm/amdgpu: page retire over debugfs mechanism drm/radeon: Fix a missing check bug in radeon_dp_mst_detect() drm/amd/display: Fix the Wunused-function warning drm/radeon/r600: Fix variables that are not used after assignment drm/amdgpu/smu7: fix CAC setting on TOPAZ drm/amd/display: Update DCN302 SR Exit Latency drm/amdgpu: enable ras eeprom on aldebaran drm/amdgpu: RAS harvest on driver load drm/amdgpu: add ras aldebaran ras eeprom driver drm/amd/pm: increase time out value when sending msg to SMU drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag drm/amd/pm: add the callback to get vbios bootup values for vangogh drm/radeon: Fix size overflow drm/amdgpu: Fix size overflow drm/amdgpu: move mmhub ras_func init to ip specific file ...
810 lines
19 KiB
C
810 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Test cases for printf facility.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/printk.h>
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#include <linux/random.h>
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#include <linux/rtc.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/bitmap.h>
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#include <linux/dcache.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/gfp.h>
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#include <linux/mm.h>
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#include <linux/property.h>
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#include "../tools/testing/selftests/kselftest_module.h"
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#define BUF_SIZE 256
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#define PAD_SIZE 16
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#define FILL_CHAR '$'
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KSTM_MODULE_GLOBALS();
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static char *test_buffer __initdata;
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static char *alloced_buffer __initdata;
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extern bool no_hash_pointers;
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static int __printf(4, 0) __init
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do_test(int bufsize, const char *expect, int elen,
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const char *fmt, va_list ap)
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{
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va_list aq;
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int ret, written;
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total_tests++;
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memset(alloced_buffer, FILL_CHAR, BUF_SIZE + 2*PAD_SIZE);
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va_copy(aq, ap);
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ret = vsnprintf(test_buffer, bufsize, fmt, aq);
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va_end(aq);
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if (ret != elen) {
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pr_warn("vsnprintf(buf, %d, \"%s\", ...) returned %d, expected %d\n",
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bufsize, fmt, ret, elen);
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return 1;
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}
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if (memchr_inv(alloced_buffer, FILL_CHAR, PAD_SIZE)) {
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pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote before buffer\n", bufsize, fmt);
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return 1;
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}
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if (!bufsize) {
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if (memchr_inv(test_buffer, FILL_CHAR, BUF_SIZE + PAD_SIZE)) {
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pr_warn("vsnprintf(buf, 0, \"%s\", ...) wrote to buffer\n",
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fmt);
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return 1;
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}
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return 0;
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}
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written = min(bufsize-1, elen);
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if (test_buffer[written]) {
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pr_warn("vsnprintf(buf, %d, \"%s\", ...) did not nul-terminate buffer\n",
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bufsize, fmt);
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return 1;
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}
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if (memchr_inv(test_buffer + written + 1, FILL_CHAR, BUF_SIZE + PAD_SIZE - (written + 1))) {
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pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote beyond the nul-terminator\n",
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bufsize, fmt);
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return 1;
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}
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if (memcmp(test_buffer, expect, written)) {
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pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote '%s', expected '%.*s'\n",
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bufsize, fmt, test_buffer, written, expect);
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return 1;
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}
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return 0;
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}
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static void __printf(3, 4) __init
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__test(const char *expect, int elen, const char *fmt, ...)
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{
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va_list ap;
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int rand;
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char *p;
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if (elen >= BUF_SIZE) {
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pr_err("error in test suite: expected output length %d too long. Format was '%s'.\n",
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elen, fmt);
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failed_tests++;
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return;
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}
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va_start(ap, fmt);
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/*
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* Every fmt+args is subjected to four tests: Three where we
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* tell vsnprintf varying buffer sizes (plenty, not quite
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* enough and 0), and then we also test that kvasprintf would
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* be able to print it as expected.
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*/
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failed_tests += do_test(BUF_SIZE, expect, elen, fmt, ap);
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rand = 1 + prandom_u32_max(elen+1);
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/* Since elen < BUF_SIZE, we have 1 <= rand <= BUF_SIZE. */
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failed_tests += do_test(rand, expect, elen, fmt, ap);
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failed_tests += do_test(0, expect, elen, fmt, ap);
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p = kvasprintf(GFP_KERNEL, fmt, ap);
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if (p) {
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total_tests++;
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if (memcmp(p, expect, elen+1)) {
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pr_warn("kvasprintf(..., \"%s\", ...) returned '%s', expected '%s'\n",
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fmt, p, expect);
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failed_tests++;
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}
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kfree(p);
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}
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va_end(ap);
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}
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#define test(expect, fmt, ...) \
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__test(expect, strlen(expect), fmt, ##__VA_ARGS__)
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static void __init
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test_basic(void)
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{
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/* Work around annoying "warning: zero-length gnu_printf format string". */
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char nul = '\0';
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test("", &nul);
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test("100%", "100%%");
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test("xxx%yyy", "xxx%cyyy", '%');
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__test("xxx\0yyy", 7, "xxx%cyyy", '\0');
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}
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static void __init
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test_number(void)
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{
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test("0x1234abcd ", "%#-12x", 0x1234abcd);
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test(" 0x1234abcd", "%#12x", 0x1234abcd);
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test("0|001| 12|+123| 1234|-123|-1234", "%d|%03d|%3d|%+d|% d|%+d|% d", 0, 1, 12, 123, 1234, -123, -1234);
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test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
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test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
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test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627);
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/*
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* POSIX/C99: »The result of converting zero with an explicit
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* precision of zero shall be no characters.« Hence the output
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* from the below test should really be "00|0||| ". However,
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* the kernel's printf also produces a single 0 in that
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* case. This test case simply documents the current
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* behaviour.
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*/
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test("00|0|0|0|0", "%.2d|%.1d|%.0d|%.*d|%1.0d", 0, 0, 0, 0, 0, 0);
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#ifndef __CHAR_UNSIGNED__
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{
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/*
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* Passing a 'char' to a %02x specifier doesn't do
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* what was presumably the intention when char is
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* signed and the value is negative. One must either &
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* with 0xff or cast to u8.
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*/
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char val = -16;
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test("0xfffffff0|0xf0|0xf0", "%#02x|%#02x|%#02x", val, val & 0xff, (u8)val);
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}
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#endif
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}
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static void __init
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test_string(void)
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{
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test("", "%s%.0s", "", "123");
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test("ABCD|abc|123", "%s|%.3s|%.*s", "ABCD", "abcdef", 3, "123456");
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test("1 | 2|3 | 4|5 ", "%-3s|%3s|%-*s|%*s|%*s", "1", "2", 3, "3", 3, "4", -3, "5");
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test("1234 ", "%-10.4s", "123456");
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test(" 1234", "%10.4s", "123456");
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/*
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* POSIX and C99 say that a negative precision (which is only
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* possible to pass via a * argument) should be treated as if
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* the precision wasn't present, and that if the precision is
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* omitted (as in %.s), the precision should be taken to be
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* 0. However, the kernel's printf behave exactly opposite,
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* treating a negative precision as 0 and treating an omitted
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* precision specifier as if no precision was given.
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*
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* These test cases document the current behaviour; should
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* anyone ever feel the need to follow the standards more
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* closely, this can be revisited.
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*/
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test(" ", "%4.*s", -5, "123456");
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test("123456", "%.s", "123456");
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test("a||", "%.s|%.0s|%.*s", "a", "b", 0, "c");
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test("a | | ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c");
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}
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#define PLAIN_BUF_SIZE 64 /* leave some space so we don't oops */
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#if BITS_PER_LONG == 64
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#define PTR_WIDTH 16
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#define PTR ((void *)0xffff0123456789abUL)
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#define PTR_STR "ffff0123456789ab"
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#define PTR_VAL_NO_CRNG "(____ptrval____)"
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#define ZEROS "00000000" /* hex 32 zero bits */
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#define ONES "ffffffff" /* hex 32 one bits */
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static int __init
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plain_format(void)
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{
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char buf[PLAIN_BUF_SIZE];
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int nchars;
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nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR);
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if (nchars != PTR_WIDTH)
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return -1;
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if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
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pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
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PTR_VAL_NO_CRNG);
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return 0;
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}
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if (strncmp(buf, ZEROS, strlen(ZEROS)) != 0)
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return -1;
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return 0;
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}
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#else
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#define PTR_WIDTH 8
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#define PTR ((void *)0x456789ab)
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#define PTR_STR "456789ab"
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#define PTR_VAL_NO_CRNG "(ptrval)"
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#define ZEROS ""
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#define ONES ""
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static int __init
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plain_format(void)
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{
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/* Format is implicitly tested for 32 bit machines by plain_hash() */
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return 0;
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}
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#endif /* BITS_PER_LONG == 64 */
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static int __init
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plain_hash_to_buffer(const void *p, char *buf, size_t len)
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{
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int nchars;
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nchars = snprintf(buf, len, "%p", p);
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if (nchars != PTR_WIDTH)
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return -1;
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if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
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pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
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PTR_VAL_NO_CRNG);
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return 0;
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}
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return 0;
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}
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static int __init
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plain_hash(void)
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{
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char buf[PLAIN_BUF_SIZE];
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int ret;
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ret = plain_hash_to_buffer(PTR, buf, PLAIN_BUF_SIZE);
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if (ret)
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return ret;
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if (strncmp(buf, PTR_STR, PTR_WIDTH) == 0)
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return -1;
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return 0;
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}
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/*
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* We can't use test() to test %p because we don't know what output to expect
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* after an address is hashed.
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*/
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static void __init
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plain(void)
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{
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int err;
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if (no_hash_pointers) {
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pr_warn("skipping plain 'p' tests");
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skipped_tests += 2;
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return;
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}
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err = plain_hash();
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if (err) {
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pr_warn("plain 'p' does not appear to be hashed\n");
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failed_tests++;
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return;
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}
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err = plain_format();
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if (err) {
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pr_warn("hashing plain 'p' has unexpected format\n");
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failed_tests++;
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}
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}
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static void __init
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test_hashed(const char *fmt, const void *p)
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{
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char buf[PLAIN_BUF_SIZE];
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int ret;
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/*
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* No need to increase failed test counter since this is assumed
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* to be called after plain().
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*/
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ret = plain_hash_to_buffer(p, buf, PLAIN_BUF_SIZE);
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if (ret)
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return;
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test(buf, fmt, p);
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}
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/*
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* NULL pointers aren't hashed.
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*/
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static void __init
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null_pointer(void)
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{
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test(ZEROS "00000000", "%p", NULL);
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test(ZEROS "00000000", "%px", NULL);
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test("(null)", "%pE", NULL);
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}
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/*
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* Error pointers aren't hashed.
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*/
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static void __init
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error_pointer(void)
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{
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test(ONES "fffffff5", "%p", ERR_PTR(-11));
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test(ONES "fffffff5", "%px", ERR_PTR(-11));
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test("(efault)", "%pE", ERR_PTR(-11));
|
|
}
|
|
|
|
#define PTR_INVALID ((void *)0x000000ab)
|
|
|
|
static void __init
|
|
invalid_pointer(void)
|
|
{
|
|
test_hashed("%p", PTR_INVALID);
|
|
test(ZEROS "000000ab", "%px", PTR_INVALID);
|
|
test("(efault)", "%pE", PTR_INVALID);
|
|
}
|
|
|
|
static void __init
|
|
symbol_ptr(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
kernel_ptr(void)
|
|
{
|
|
/* We can't test this without access to kptr_restrict. */
|
|
}
|
|
|
|
static void __init
|
|
struct_resource(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
addr(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
escaped_str(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
hex_string(void)
|
|
{
|
|
const char buf[3] = {0xc0, 0xff, 0xee};
|
|
|
|
test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee",
|
|
"%3ph|%3phC|%3phD|%3phN", buf, buf, buf, buf);
|
|
test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee",
|
|
"%*ph|%*phC|%*phD|%*phN", 3, buf, 3, buf, 3, buf, 3, buf);
|
|
}
|
|
|
|
static void __init
|
|
mac(void)
|
|
{
|
|
const u8 addr[6] = {0x2d, 0x48, 0xd6, 0xfc, 0x7a, 0x05};
|
|
|
|
test("2d:48:d6:fc:7a:05", "%pM", addr);
|
|
test("05:7a:fc:d6:48:2d", "%pMR", addr);
|
|
test("2d-48-d6-fc-7a-05", "%pMF", addr);
|
|
test("2d48d6fc7a05", "%pm", addr);
|
|
test("057afcd6482d", "%pmR", addr);
|
|
}
|
|
|
|
static void __init
|
|
ip4(void)
|
|
{
|
|
struct sockaddr_in sa;
|
|
|
|
sa.sin_family = AF_INET;
|
|
sa.sin_port = cpu_to_be16(12345);
|
|
sa.sin_addr.s_addr = cpu_to_be32(0x7f000001);
|
|
|
|
test("127.000.000.001|127.0.0.1", "%pi4|%pI4", &sa.sin_addr, &sa.sin_addr);
|
|
test("127.000.000.001|127.0.0.1", "%piS|%pIS", &sa, &sa);
|
|
sa.sin_addr.s_addr = cpu_to_be32(0x01020304);
|
|
test("001.002.003.004:12345|1.2.3.4:12345", "%piSp|%pISp", &sa, &sa);
|
|
}
|
|
|
|
static void __init
|
|
ip6(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
ip(void)
|
|
{
|
|
ip4();
|
|
ip6();
|
|
}
|
|
|
|
static void __init
|
|
uuid(void)
|
|
{
|
|
const char uuid[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
|
|
0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
|
|
|
|
test("00010203-0405-0607-0809-0a0b0c0d0e0f", "%pUb", uuid);
|
|
test("00010203-0405-0607-0809-0A0B0C0D0E0F", "%pUB", uuid);
|
|
test("03020100-0504-0706-0809-0a0b0c0d0e0f", "%pUl", uuid);
|
|
test("03020100-0504-0706-0809-0A0B0C0D0E0F", "%pUL", uuid);
|
|
}
|
|
|
|
static struct dentry test_dentry[4] __initdata = {
|
|
{ .d_parent = &test_dentry[0],
|
|
.d_name = QSTR_INIT(test_dentry[0].d_iname, 3),
|
|
.d_iname = "foo" },
|
|
{ .d_parent = &test_dentry[0],
|
|
.d_name = QSTR_INIT(test_dentry[1].d_iname, 5),
|
|
.d_iname = "bravo" },
|
|
{ .d_parent = &test_dentry[1],
|
|
.d_name = QSTR_INIT(test_dentry[2].d_iname, 4),
|
|
.d_iname = "alfa" },
|
|
{ .d_parent = &test_dentry[2],
|
|
.d_name = QSTR_INIT(test_dentry[3].d_iname, 5),
|
|
.d_iname = "romeo" },
|
|
};
|
|
|
|
static void __init
|
|
dentry(void)
|
|
{
|
|
test("foo", "%pd", &test_dentry[0]);
|
|
test("foo", "%pd2", &test_dentry[0]);
|
|
|
|
test("(null)", "%pd", NULL);
|
|
test("(efault)", "%pd", PTR_INVALID);
|
|
test("(null)", "%pD", NULL);
|
|
test("(efault)", "%pD", PTR_INVALID);
|
|
|
|
test("romeo", "%pd", &test_dentry[3]);
|
|
test("alfa/romeo", "%pd2", &test_dentry[3]);
|
|
test("bravo/alfa/romeo", "%pd3", &test_dentry[3]);
|
|
test("/bravo/alfa/romeo", "%pd4", &test_dentry[3]);
|
|
test("/bravo/alfa", "%pd4", &test_dentry[2]);
|
|
|
|
test("bravo/alfa |bravo/alfa ", "%-12pd2|%*pd2", &test_dentry[2], -12, &test_dentry[2]);
|
|
test(" bravo/alfa| bravo/alfa", "%12pd2|%*pd2", &test_dentry[2], 12, &test_dentry[2]);
|
|
}
|
|
|
|
static void __init
|
|
struct_va_format(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
time_and_date(void)
|
|
{
|
|
/* 1543210543 */
|
|
const struct rtc_time tm = {
|
|
.tm_sec = 43,
|
|
.tm_min = 35,
|
|
.tm_hour = 5,
|
|
.tm_mday = 26,
|
|
.tm_mon = 10,
|
|
.tm_year = 118,
|
|
};
|
|
/* 2019-01-04T15:32:23 */
|
|
time64_t t = 1546615943;
|
|
|
|
test("(%pt?)", "%pt", &tm);
|
|
test("2018-11-26T05:35:43", "%ptR", &tm);
|
|
test("0118-10-26T05:35:43", "%ptRr", &tm);
|
|
test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm);
|
|
test("05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm);
|
|
test("05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm);
|
|
test("05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm);
|
|
|
|
test("2019-01-04T15:32:23", "%ptT", &t);
|
|
test("0119-00-04T15:32:23", "%ptTr", &t);
|
|
test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t);
|
|
test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t);
|
|
}
|
|
|
|
static void __init
|
|
struct_clk(void)
|
|
{
|
|
}
|
|
|
|
static void __init
|
|
large_bitmap(void)
|
|
{
|
|
const int nbits = 1 << 16;
|
|
unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL);
|
|
if (!bits)
|
|
return;
|
|
|
|
bitmap_set(bits, 1, 20);
|
|
bitmap_set(bits, 60000, 15);
|
|
test("1-20,60000-60014", "%*pbl", nbits, bits);
|
|
bitmap_free(bits);
|
|
}
|
|
|
|
static void __init
|
|
bitmap(void)
|
|
{
|
|
DECLARE_BITMAP(bits, 20);
|
|
const int primes[] = {2,3,5,7,11,13,17,19};
|
|
int i;
|
|
|
|
bitmap_zero(bits, 20);
|
|
test("00000|00000", "%20pb|%*pb", bits, 20, bits);
|
|
test("|", "%20pbl|%*pbl", bits, 20, bits);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(primes); ++i)
|
|
set_bit(primes[i], bits);
|
|
test("a28ac|a28ac", "%20pb|%*pb", bits, 20, bits);
|
|
test("2-3,5,7,11,13,17,19|2-3,5,7,11,13,17,19", "%20pbl|%*pbl", bits, 20, bits);
|
|
|
|
bitmap_fill(bits, 20);
|
|
test("fffff|fffff", "%20pb|%*pb", bits, 20, bits);
|
|
test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits);
|
|
|
|
large_bitmap();
|
|
}
|
|
|
|
static void __init
|
|
netdev_features(void)
|
|
{
|
|
}
|
|
|
|
struct page_flags_test {
|
|
int width;
|
|
int shift;
|
|
int mask;
|
|
unsigned long value;
|
|
const char *fmt;
|
|
const char *name;
|
|
};
|
|
|
|
static struct page_flags_test pft[] = {
|
|
{SECTIONS_WIDTH, SECTIONS_PGSHIFT, SECTIONS_MASK,
|
|
0, "%d", "section"},
|
|
{NODES_WIDTH, NODES_PGSHIFT, NODES_MASK,
|
|
0, "%d", "node"},
|
|
{ZONES_WIDTH, ZONES_PGSHIFT, ZONES_MASK,
|
|
0, "%d", "zone"},
|
|
{LAST_CPUPID_WIDTH, LAST_CPUPID_PGSHIFT, LAST_CPUPID_MASK,
|
|
0, "%#x", "lastcpupid"},
|
|
{KASAN_TAG_WIDTH, KASAN_TAG_PGSHIFT, KASAN_TAG_MASK,
|
|
0, "%#x", "kasantag"},
|
|
};
|
|
|
|
static void __init
|
|
page_flags_test(int section, int node, int zone, int last_cpupid,
|
|
int kasan_tag, int flags, const char *name, char *cmp_buf)
|
|
{
|
|
unsigned long values[] = {section, node, zone, last_cpupid, kasan_tag};
|
|
unsigned long page_flags = 0;
|
|
unsigned long size = 0;
|
|
bool append = false;
|
|
int i;
|
|
|
|
flags &= BIT(NR_PAGEFLAGS) - 1;
|
|
if (flags) {
|
|
page_flags |= flags;
|
|
snprintf(cmp_buf + size, BUF_SIZE - size, "%s", name);
|
|
size = strlen(cmp_buf);
|
|
#if SECTIONS_WIDTH || NODES_WIDTH || ZONES_WIDTH || \
|
|
LAST_CPUPID_WIDTH || KASAN_TAG_WIDTH
|
|
/* Other information also included in page flags */
|
|
snprintf(cmp_buf + size, BUF_SIZE - size, "|");
|
|
size = strlen(cmp_buf);
|
|
#endif
|
|
}
|
|
|
|
/* Set the test value */
|
|
for (i = 0; i < ARRAY_SIZE(pft); i++)
|
|
pft[i].value = values[i];
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pft); i++) {
|
|
if (!pft[i].width)
|
|
continue;
|
|
|
|
if (append) {
|
|
snprintf(cmp_buf + size, BUF_SIZE - size, "|");
|
|
size = strlen(cmp_buf);
|
|
}
|
|
|
|
page_flags |= (pft[i].value & pft[i].mask) << pft[i].shift;
|
|
snprintf(cmp_buf + size, BUF_SIZE - size, "%s=", pft[i].name);
|
|
size = strlen(cmp_buf);
|
|
snprintf(cmp_buf + size, BUF_SIZE - size, pft[i].fmt,
|
|
pft[i].value & pft[i].mask);
|
|
size = strlen(cmp_buf);
|
|
append = true;
|
|
}
|
|
|
|
test(cmp_buf, "%pGp", &page_flags);
|
|
}
|
|
|
|
static void __init
|
|
flags(void)
|
|
{
|
|
unsigned long flags;
|
|
char *cmp_buffer;
|
|
gfp_t gfp;
|
|
|
|
cmp_buffer = kmalloc(BUF_SIZE, GFP_KERNEL);
|
|
if (!cmp_buffer)
|
|
return;
|
|
|
|
flags = 0;
|
|
page_flags_test(0, 0, 0, 0, 0, flags, "", cmp_buffer);
|
|
|
|
flags = 1UL << NR_PAGEFLAGS;
|
|
page_flags_test(0, 0, 0, 0, 0, flags, "", cmp_buffer);
|
|
|
|
flags |= 1UL << PG_uptodate | 1UL << PG_dirty | 1UL << PG_lru
|
|
| 1UL << PG_active | 1UL << PG_swapbacked;
|
|
page_flags_test(1, 1, 1, 0x1fffff, 1, flags,
|
|
"uptodate|dirty|lru|active|swapbacked",
|
|
cmp_buffer);
|
|
|
|
flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC
|
|
| VM_DENYWRITE;
|
|
test("read|exec|mayread|maywrite|mayexec|denywrite", "%pGv", &flags);
|
|
|
|
gfp = GFP_TRANSHUGE;
|
|
test("GFP_TRANSHUGE", "%pGg", &gfp);
|
|
|
|
gfp = GFP_ATOMIC|__GFP_DMA;
|
|
test("GFP_ATOMIC|GFP_DMA", "%pGg", &gfp);
|
|
|
|
gfp = __GFP_ATOMIC;
|
|
test("__GFP_ATOMIC", "%pGg", &gfp);
|
|
|
|
/* Any flags not translated by the table should remain numeric */
|
|
gfp = ~__GFP_BITS_MASK;
|
|
snprintf(cmp_buffer, BUF_SIZE, "%#lx", (unsigned long) gfp);
|
|
test(cmp_buffer, "%pGg", &gfp);
|
|
|
|
snprintf(cmp_buffer, BUF_SIZE, "__GFP_ATOMIC|%#lx",
|
|
(unsigned long) gfp);
|
|
gfp |= __GFP_ATOMIC;
|
|
test(cmp_buffer, "%pGg", &gfp);
|
|
|
|
kfree(cmp_buffer);
|
|
}
|
|
|
|
static void __init fwnode_pointer(void)
|
|
{
|
|
const struct software_node softnodes[] = {
|
|
{ .name = "first", },
|
|
{ .name = "second", .parent = &softnodes[0], },
|
|
{ .name = "third", .parent = &softnodes[1], },
|
|
{ NULL /* Guardian */ }
|
|
};
|
|
const char * const full_name = "first/second/third";
|
|
const char * const full_name_second = "first/second";
|
|
const char * const second_name = "second";
|
|
const char * const third_name = "third";
|
|
int rval;
|
|
|
|
rval = software_node_register_nodes(softnodes);
|
|
if (rval) {
|
|
pr_warn("cannot register softnodes; rval %d\n", rval);
|
|
return;
|
|
}
|
|
|
|
test(full_name_second, "%pfw", software_node_fwnode(&softnodes[1]));
|
|
test(full_name, "%pfw", software_node_fwnode(&softnodes[2]));
|
|
test(full_name, "%pfwf", software_node_fwnode(&softnodes[2]));
|
|
test(second_name, "%pfwP", software_node_fwnode(&softnodes[1]));
|
|
test(third_name, "%pfwP", software_node_fwnode(&softnodes[2]));
|
|
|
|
software_node_unregister_nodes(softnodes);
|
|
}
|
|
|
|
static void __init fourcc_pointer(void)
|
|
{
|
|
struct {
|
|
u32 code;
|
|
char *str;
|
|
} const try[] = {
|
|
{ 0x3231564e, "NV12 little-endian (0x3231564e)", },
|
|
{ 0xb231564e, "NV12 big-endian (0xb231564e)", },
|
|
{ 0x10111213, ".... little-endian (0x10111213)", },
|
|
{ 0x20303159, "Y10 little-endian (0x20303159)", },
|
|
};
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(try); i++)
|
|
test(try[i].str, "%p4cc", &try[i].code);
|
|
}
|
|
|
|
static void __init
|
|
errptr(void)
|
|
{
|
|
test("-1234", "%pe", ERR_PTR(-1234));
|
|
|
|
/* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */
|
|
BUILD_BUG_ON(IS_ERR(PTR));
|
|
test_hashed("%pe", PTR);
|
|
|
|
#ifdef CONFIG_SYMBOLIC_ERRNAME
|
|
test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK));
|
|
test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN));
|
|
BUILD_BUG_ON(EAGAIN != EWOULDBLOCK);
|
|
test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK));
|
|
test("[-EIO ]", "[%-8pe]", ERR_PTR(-EIO));
|
|
test("[ -EIO]", "[%8pe]", ERR_PTR(-EIO));
|
|
test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER));
|
|
#endif
|
|
}
|
|
|
|
static void __init
|
|
test_pointer(void)
|
|
{
|
|
plain();
|
|
null_pointer();
|
|
error_pointer();
|
|
invalid_pointer();
|
|
symbol_ptr();
|
|
kernel_ptr();
|
|
struct_resource();
|
|
addr();
|
|
escaped_str();
|
|
hex_string();
|
|
mac();
|
|
ip();
|
|
uuid();
|
|
dentry();
|
|
struct_va_format();
|
|
time_and_date();
|
|
struct_clk();
|
|
bitmap();
|
|
netdev_features();
|
|
flags();
|
|
errptr();
|
|
fwnode_pointer();
|
|
fourcc_pointer();
|
|
}
|
|
|
|
static void __init selftest(void)
|
|
{
|
|
alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL);
|
|
if (!alloced_buffer)
|
|
return;
|
|
test_buffer = alloced_buffer + PAD_SIZE;
|
|
|
|
test_basic();
|
|
test_number();
|
|
test_string();
|
|
test_pointer();
|
|
|
|
kfree(alloced_buffer);
|
|
}
|
|
|
|
KSTM_MODULE_LOADERS(test_printf);
|
|
MODULE_AUTHOR("Rasmus Villemoes <linux@rasmusvillemoes.dk>");
|
|
MODULE_LICENSE("GPL");
|