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[82.17.115.212]) by smtp.gmail.com with ESMTPSA id v124-20020a1cac82000000b0037c3d08e0e7sm7259171wme.29.2022.03.10.02.26.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Mar 2022 02:26:28 -0800 (PST) From: Aaron Tomlin To: mcgrof@kernel.org, christophe.leroy@csgroup.eu Cc: cl@linux.com, mbenes@suse.cz, akpm@linux-foundation.org, jeyu@kernel.org, linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org, void@manifault.com, atomlin@atomlin.com, allen.lkml@gmail.com, joe@perches.com, msuchanek@suse.de, oleksandr@natalenko.name, jason.wessel@windriver.com, pmladek@suse.com, daniel.thompson@linaro.org, hch@infradead.org Subject: [PATCH v11 13/14] module: Move kdb module related code out of main kdb code Date: Thu, 10 Mar 2022 10:26:24 +0000 Message-Id: <20220310102625.3441888-2-atomlin@redhat.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220310102625.3441888-1-atomlin@redhat.com> References: <20220310102413.3438665-1-atomlin@redhat.com> <20220310102625.3441888-1-atomlin@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: No functional change. This patch migrates the kdb 'lsmod' command support out of main kdb code into its own file under kernel/module. In addition to the above, a minor style warning i.e. missing a blank line after declarations, was resolved too. The new file was added to MAINTAINERS. Finally we remove linux/module.h as it is entirely redundant. Signed-off-by: Aaron Tomlin Reviewed-by: Daniel Thompson Acked-by: Daniel Thompson --- MAINTAINERS | 1 + include/linux/kdb.h | 1 + kernel/debug/kdb/kdb_io.c | 1 - kernel/debug/kdb/kdb_keyboard.c | 1 - kernel/debug/kdb/kdb_main.c | 49 ----------------------------- kernel/debug/kdb/kdb_private.h | 4 --- kernel/debug/kdb/kdb_support.c | 1 - kernel/module/Makefile | 1 + kernel/module/kdb.c | 56 +++++++++++++++++++++++++++++++++ kernel/module/main.c | 4 --- 10 files changed, 59 insertions(+), 60 deletions(-) create mode 100644 kernel/module/kdb.c diff --git a/MAINTAINERS b/MAINTAINERS index 195cf1ac2ee8..40c717f93c1a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10689,6 +10689,7 @@ F: drivers/tty/serial/kgdboc.c F: include/linux/kdb.h F: include/linux/kgdb.h F: kernel/debug/ +F: kernel/module/kdb.c KHADAS MCU MFD DRIVER M: Neil Armstrong diff --git a/include/linux/kdb.h b/include/linux/kdb.h index ea0f5e580fac..07dfb6a20a1c 100644 --- a/include/linux/kdb.h +++ b/include/linux/kdb.h @@ -222,5 +222,6 @@ enum { extern int kdbgetintenv(const char *, int *); extern int kdb_set(int, const char **); +int kdb_lsmod(int argc, const char **argv); #endif /* !_KDB_H */ diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c index 6735ac36b718..67d3c48a1522 100644 --- a/kernel/debug/kdb/kdb_io.c +++ b/kernel/debug/kdb/kdb_io.c @@ -9,7 +9,6 @@ * Copyright (c) 2009 Wind River Systems, Inc. All Rights Reserved. */ -#include #include #include #include diff --git a/kernel/debug/kdb/kdb_keyboard.c b/kernel/debug/kdb/kdb_keyboard.c index f877a0a0d7cf..f87c750d3eb3 100644 --- a/kernel/debug/kdb/kdb_keyboard.c +++ b/kernel/debug/kdb/kdb_keyboard.c @@ -11,7 +11,6 @@ #include #include #include -#include #include /* Keyboard Controller Registers on normal PCs. */ diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 0852a537dad4..f3a30cd5037f 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include @@ -2004,54 +2003,6 @@ static int kdb_ef(int argc, const char **argv) return 0; } -#if defined(CONFIG_MODULES) -/* - * kdb_lsmod - This function implements the 'lsmod' command. Lists - * currently loaded kernel modules. - * Mostly taken from userland lsmod. - */ -static int kdb_lsmod(int argc, const char **argv) -{ - struct module *mod; - - if (argc != 0) - return KDB_ARGCOUNT; - - kdb_printf("Module Size modstruct Used by\n"); - list_for_each_entry(mod, kdb_modules, list) { - if (mod->state == MODULE_STATE_UNFORMED) - continue; - - kdb_printf("%-20s%8u 0x%px ", mod->name, - mod->core_layout.size, (void *)mod); -#ifdef CONFIG_MODULE_UNLOAD - kdb_printf("%4d ", module_refcount(mod)); -#endif - if (mod->state == MODULE_STATE_GOING) - kdb_printf(" (Unloading)"); - else if (mod->state == MODULE_STATE_COMING) - kdb_printf(" (Loading)"); - else - kdb_printf(" (Live)"); - kdb_printf(" 0x%px", mod->core_layout.base); - -#ifdef CONFIG_MODULE_UNLOAD - { - struct module_use *use; - kdb_printf(" [ "); - list_for_each_entry(use, &mod->source_list, - source_list) - kdb_printf("%s ", use->target->name); - kdb_printf("]\n"); - } -#endif - } - - return 0; -} - -#endif /* CONFIG_MODULES */ - /* * kdb_env - This function implements the 'env' command. Display the * current environment variables. diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h index 0d2f9feea0a4..1f8c519a5f81 100644 --- a/kernel/debug/kdb/kdb_private.h +++ b/kernel/debug/kdb/kdb_private.h @@ -226,10 +226,6 @@ extern void kdb_kbd_cleanup_state(void); #define kdb_kbd_cleanup_state() #endif /* ! CONFIG_KDB_KEYBOARD */ -#ifdef CONFIG_MODULES -extern struct list_head *kdb_modules; -#endif /* CONFIG_MODULES */ - extern char kdb_prompt_str[]; #define KDB_WORD_SIZE ((int)sizeof(unsigned long)) diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c index df2bface866e..08229ffb6b5e 100644 --- a/kernel/debug/kdb/kdb_support.c +++ b/kernel/debug/kdb/kdb_support.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include diff --git a/kernel/module/Makefile b/kernel/module/Makefile index cf8dcdc6b55f..88f5cdcdb067 100644 --- a/kernel/module/Makefile +++ b/kernel/module/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_DEBUG_KMEMLEAK) += debug_kmemleak.o obj-$(CONFIG_KALLSYMS) += kallsyms.o obj-$(CONFIG_PROC_FS) += procfs.o obj-$(CONFIG_SYSFS) += sysfs.o +obj-$(CONFIG_KGDB_KDB) += kdb.o diff --git a/kernel/module/kdb.c b/kernel/module/kdb.c new file mode 100644 index 000000000000..a446c699db0a --- /dev/null +++ b/kernel/module/kdb.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Module kdb support + * + * Copyright (C) 2010 Jason Wessel + */ + +#include +#include +#include "internal.h" + +/* + * kdb_lsmod - This function implements the 'lsmod' command. Lists + * currently loaded kernel modules. + * Mostly taken from userland lsmod. + */ +int kdb_lsmod(int argc, const char **argv) +{ + struct module *mod; + + if (argc != 0) + return KDB_ARGCOUNT; + + kdb_printf("Module Size modstruct Used by\n"); + list_for_each_entry(mod, &modules, list) { + if (mod->state == MODULE_STATE_UNFORMED) + continue; + + kdb_printf("%-20s%8u 0x%px ", mod->name, + mod->core_layout.size, (void *)mod); +#ifdef CONFIG_MODULE_UNLOAD + kdb_printf("%4d ", module_refcount(mod)); +#endif + if (mod->state == MODULE_STATE_GOING) + kdb_printf(" (Unloading)"); + else if (mod->state == MODULE_STATE_COMING) + kdb_printf(" (Loading)"); + else + kdb_printf(" (Live)"); + kdb_printf(" 0x%px", mod->core_layout.base); + +#ifdef CONFIG_MODULE_UNLOAD + { + struct module_use *use; + + kdb_printf(" [ "); + list_for_each_entry(use, &mod->source_list, + source_list) + kdb_printf("%s ", use->target->name); + kdb_printf("]\n"); + } +#endif + } + + return 0; +} diff --git a/kernel/module/main.c b/kernel/module/main.c index b8a59b5c3e3a..bcc4f7a82649 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -108,10 +108,6 @@ static void mod_update_bounds(struct module *mod) __mod_update_bounds(mod->init_layout.base, mod->init_layout.size); } -#ifdef CONFIG_KGDB_KDB -struct list_head *kdb_modules = &modules; /* kdb needs the list of modules */ -#endif /* CONFIG_KGDB_KDB */ - static void module_assert_mutex_or_preempt(void) { #ifdef CONFIG_LOCKDEP