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Merge tag 'modules-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules updates from Luis Chamberlain: "Nothing exciting at all for modules for v6.3. The biggest change is just the change of INSTALL_MOD_DIR from "extra" to "updates" which I found lingered for ages for no good reason while testing the CXL mock driver [0]. The CXL mock driver has no kconfig integration and requires building an external module... and re-building the *rest* of the production drivers. This mock driver when loaded but not the production ones will crash. All this can obviously be fixed by integrating kconfig semantics into such test module, however that's not desirable by the maintainer, and so sensible defaults must be used to ensure a default "make modules_install" will suffice for most distros which do not have a file like /etc/depmod.d/dist.conf with something like `search updates extra built-in`. Since most distros rely on kmod and since its inception the "updates" directory is always in the search path it makes more sense to use that than the "extra" which only *some* RH based systems rely on. All this stuff has been on linux-next for a while" [0] https://lkml.kernel.org/r/20221209062919.1096779-1-mcgrof@kernel.org * tag 'modules-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: Documentation: livepatch: module-elf-format: Remove local klp_modinfo definition module.h: Document klp_modinfo struct using kdoc module: Use kstrtobool() instead of strtobool() kernel/params.c: Use kstrtobool() instead of strtobool() test_kmod: stop kernel-doc warnings kbuild: Modify default INSTALL_MOD_DIR from extra to updates
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@@ -298,12 +298,5 @@ A livepatch module's symbol table is accessible through module->symtab.
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Since apply_relocate_add() requires access to a module's section headers,
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symbol table, and relocation section indices, Elf information is preserved for
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livepatch modules and is made accessible by the module loader through
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module->klp_info, which is a klp_modinfo struct. When a livepatch module loads,
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this struct is filled in by the module loader. Its fields are documented below::
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struct klp_modinfo {
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Elf_Ehdr hdr; /* Elf header */
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Elf_Shdr *sechdrs; /* Section header table */
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char *secstrings; /* String table for the section headers */
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unsigned int symndx; /* The symbol table section index */
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};
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module->klp_info, which is a :c:type:`klp_modinfo` struct. When a livepatch module
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loads, this struct is filled in by the module loader.
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@@ -352,6 +352,14 @@ struct mod_kallsyms {
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};
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#ifdef CONFIG_LIVEPATCH
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/**
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* struct klp_modinfo - Elf information preserved from the livepatch module
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*
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* @hdr: Elf header
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* @sechdrs: Section header table
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* @secstrings: String table for the section headers
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* @symndx: The symbol table section index
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*/
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struct klp_modinfo {
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Elf_Ehdr hdr;
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Elf_Shdr *sechdrs;
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@@ -17,6 +17,7 @@
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/kernel_read_file.h>
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#include <linux/kstrtox.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/elf.h>
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@@ -2675,7 +2676,7 @@ static int unknown_module_param_cb(char *param, char *val, const char *modname,
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int ret;
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if (strcmp(param, "async_probe") == 0) {
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if (strtobool(val, &mod->async_probe_requested))
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if (kstrtobool(val, &mod->async_probe_requested))
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mod->async_probe_requested = true;
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return 0;
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}
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@@ -4,6 +4,7 @@
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*/
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#include <linux/kernel.h>
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#include <linux/kstrtox.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/module.h>
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@@ -310,7 +311,7 @@ int param_set_bool(const char *val, const struct kernel_param *kp)
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if (!val) val = "1";
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/* One of =[yYnN01] */
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return strtobool(val, kp->arg);
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return kstrtobool(val, kp->arg);
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}
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EXPORT_SYMBOL(param_set_bool);
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@@ -51,12 +51,11 @@ static int num_test_devs;
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/**
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* enum kmod_test_case - linker table test case
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*
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* If you add a test case, please be sure to review if you need to se
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* @need_mod_put for your tests case.
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*
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* @TEST_KMOD_DRIVER: stress tests request_module()
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* @TEST_KMOD_FS_TYPE: stress tests get_fs_type()
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*
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* If you add a test case, please be sure to review if you need to set
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* @need_mod_put for your tests case.
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*/
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enum kmod_test_case {
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__TEST_KMOD_INVALID = 0,
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@@ -78,7 +77,7 @@ struct test_config {
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struct kmod_test_device;
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/**
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* kmod_test_device_info - thread info
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* struct kmod_test_device_info - thread info
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*
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* @ret_sync: return value if request_module() is used, sync request for
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* @TEST_KMOD_DRIVER
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@@ -101,7 +100,7 @@ struct kmod_test_device_info {
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};
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/**
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* kmod_test_device - test device to help test kmod
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* struct kmod_test_device - test device to help test kmod
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*
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* @dev_idx: unique ID for test device
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* @config: configuration for the test
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@@ -14,7 +14,7 @@ modules := $(call read-file, $(MODORDER))
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ifeq ($(KBUILD_EXTMOD),)
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dst := $(MODLIB)/kernel
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else
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INSTALL_MOD_DIR ?= extra
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INSTALL_MOD_DIR ?= updates
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dst := $(MODLIB)/$(INSTALL_MOD_DIR)
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endif
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