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From: Matthias Maennich <maennich@google.com>
To: Jessica Yu <jeyu@kernel.org>
Cc: linux-kernel@vger.kernel.org, kernel-team@android.com,
	arnd@arndb.de, geert@linux-m68k.org, gregkh@linuxfoundation.org,
	hpa@zytor.com, joel@joelfernandes.org,
	kstewart@linuxfoundation.org, linux-arch@vger.kernel.org,
	linux-kbuild@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-modules@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-usb@vger.kernel.org, lucas.de.marchi@gmail.com,
	maco@android.com, maco@google.com, michal.lkml@markovi.net,
	mingo@redhat.com, oneukum@suse.com, pombredanne@nexb.com,
	sam@ravnborg.org, sspatil@google.com, stern@rowland.harvard.edu,
	tglx@linutronix.de, usb-storage@lists.one-eyed-alien.net,
	x86@kernel.org, yamada.masahiro@socionext.com,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: Re: [PATCH v3 03/11] module: add support for symbol namespaces.
Date: Tue, 27 Aug 2019 17:04:13 +0100
Message-ID: <20190827160413.GA148206@google.com> (raw)
In-Reply-To: <20190827153717.GA20822@linux-8ccs.fritz.box>

On Tue, Aug 27, 2019 at 05:37:18PM +0200, Jessica Yu wrote:
>+++ Matthias Maennich [21/08/19 12:49 +0100]:
>>The EXPORT_SYMBOL_NS() and EXPORT_SYMBOL_NS_GPL() macros can be used to
>>export a symbol to a specific namespace.  There are no _GPL_FUTURE and
>>_UNUSED variants because these are currently unused, and I'm not sure
>>they are necessary.
>>
>>I didn't add EXPORT_SYMBOL_NS() for ASM exports; this patch sets the
>>namespace of ASM exports to NULL by default. In case of relative
>>references, it will be relocatable to NULL. If there's a need, this
>>should be pretty easy to add.
>>
>>A module that wants to use a symbol exported to a namespace must add a
>>MODULE_IMPORT_NS() statement to their module code; otherwise, modpost
>>will complain when building the module, and the kernel module loader
>>will emit an error and fail when loading the module.
>>
>>MODULE_IMPORT_NS() adds a modinfo tag 'import_ns' to the module. That
>>tag can be observed by the modinfo command, modpost and kernel/module.c
>>at the time of loading the module.
>>
>>The ELF symbols are renamed to include the namespace with an asm label;
>>for example, symbol 'usb_stor_suspend' in namespace USB_STORAGE becomes
>>'usb_stor_suspend.USB_STORAGE'.  This allows modpost to do namespace
>>checking, without having to go through all the effort of parsing ELF and
>>relocation records just to get to the struct kernel_symbols.
>>
>>On x86_64 I saw no difference in binary size (compression), but at
>>runtime this will require a word of memory per export to hold the
>>namespace. An alternative could be to store namespaced symbols in their
>>own section and use a separate 'struct namespaced_kernel_symbol' for
>>that section, at the cost of making the module loader more complex.
>>
>>Co-developed-by: Martijn Coenen <maco@android.com>
>>Signed-off-by: Martijn Coenen <maco@android.com>
>>Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>>Signed-off-by: Matthias Maennich <maennich@google.com>
>>---
>>include/asm-generic/export.h |  6 +--
>>include/linux/export.h       | 85 ++++++++++++++++++++++++++++++------
>>include/linux/module.h       |  2 +
>>kernel/module.c              | 43 ++++++++++++++++++
>>4 files changed, 120 insertions(+), 16 deletions(-)
>>
>>diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
>>index 63f54907317b..e2b5d0f569d3 100644
>>--- a/include/asm-generic/export.h
>>+++ b/include/asm-generic/export.h
>>@@ -17,11 +17,11 @@
>>
>>.macro __put, val, name
>>#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
>>-	.long	\val - ., \name - .
>>+	.long	\val - ., \name - ., 0 - .
>>#elif defined(CONFIG_64BIT)
>>-	.quad	\val, \name
>>+	.quad	\val, \name, 0
>>#else
>>-	.long	\val, \name
>>+	.long	\val, \name, 0
>>#endif
>>.endm
>>
>>diff --git a/include/linux/export.h b/include/linux/export.h
>>index 28a4d2150689..8e12e05444d1 100644
>>--- a/include/linux/export.h
>>+++ b/include/linux/export.h
>>@@ -20,6 +20,8 @@ extern struct module __this_module;
>>
>>#ifdef CONFIG_MODULES
>>
>>+#define NS_SEPARATOR "."
>>+
>>#if defined(__KERNEL__) && !defined(__GENKSYMS__)
>>#ifdef CONFIG_MODVERSIONS
>>/* Mark the CRC weak since genksyms apparently decides not to
>>@@ -49,6 +51,16 @@ extern struct module __this_module;
>> * absolute relocations that require runtime processing on relocatable
>> * kernels.
>> */
>>+#define __KSYMTAB_ENTRY_NS(sym, sec, ns)				\
>>+	__ADDRESSABLE(sym)						\
>>+	asm("	.section \"___ksymtab" sec "+" #sym "\", \"a\"	\n"	\
>>+	    "	.balign	4					\n"	\
>>+	    "__ksymtab_" #sym NS_SEPARATOR #ns ":		\n"	\
>>+	    "	.long	" #sym "- .				\n"	\
>>+	    "	.long	__kstrtab_" #sym "- .			\n"	\
>>+	    "	.long	__kstrtab_ns_" #sym "- .		\n"	\
>>+	    "	.previous					\n")
>>+
>>#define __KSYMTAB_ENTRY(sym, sec)					\
>>	__ADDRESSABLE(sym)						\
>>	asm("	.section \"___ksymtab" sec "+" #sym "\", \"a\"	\n"	\
>>@@ -56,32 +68,53 @@ extern struct module __this_module;
>>	    "__ksymtab_" #sym ":				\n"	\
>>	    "	.long	" #sym "- .				\n"	\
>>	    "	.long	__kstrtab_" #sym "- .			\n"	\
>>+	    "	.long	0 - .					\n"	\
>>	    "	.previous					\n")
>>
>>struct kernel_symbol {
>>	int value_offset;
>>	int name_offset;
>>+	int namespace_offset;
>>};
>>#else
>>+#define __KSYMTAB_ENTRY_NS(sym, sec, ns)				\
>>+	static const struct kernel_symbol __ksymtab_##sym##__##ns	\
>>+	asm("__ksymtab_" #sym NS_SEPARATOR #ns)				\
>>+	__attribute__((section("___ksymtab" sec "+" #sym), used))	\
>>+	__aligned(sizeof(void *))					\
>>+	= { (unsigned long)&sym, __kstrtab_##sym, __kstrtab_ns_##sym}
>
>Style nit: missing space after __kstrtab_ns_##sym.
>
>>+
>>#define __KSYMTAB_ENTRY(sym, sec)					\
>>	static const struct kernel_symbol __ksymtab_##sym		\
>>+	asm("__ksymtab_" #sym)						\
>>	__attribute__((section("___ksymtab" sec "+" #sym), used))	\
>>	__aligned(sizeof(void *))					\
>>-	= { (unsigned long)&sym, __kstrtab_##sym }
>>+	= { (unsigned long)&sym, __kstrtab_##sym, NULL }
>>
>>struct kernel_symbol {
>>	unsigned long value;
>>	const char *name;
>>+	const char *namespace;
>>};
>>#endif
>>
>>-/* For every exported symbol, place a struct in the __ksymtab section */
>>-#define ___EXPORT_SYMBOL(sym, sec)					\
>>+#define ___export_symbol_common(sym, sec)				\
>>	extern typeof(sym) sym;						\
>>	__CRC_SYMBOL(sym, sec)						\
>>	static const char __kstrtab_##sym[]				\
>>	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
>>-	= #sym;								\
>>+	= #sym								\
>
>Any particular reason for this change? Not that it's important, just
>noticing the inconsistent inclusion of the semicolon in some of the
>macros (e.g. __CRC_SYMBOL includes it but __export_symbol_common doesn't).
>

I tried to be consistent to let the macro "call site" provide the final
semicolon. And you are right, I could have adjusted __CRC_SYMBOL as
well. I will adjust this for the next version.

>>+
>>+/* For every exported symbol, place a struct in the __ksymtab section */
>>+#define ___EXPORT_SYMBOL_NS(sym, sec, ns)				\
>>+	___export_symbol_common(sym, sec);			\
>>+	static const char __kstrtab_ns_##sym[]				\
>>+	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
>>+	= #ns;								\
>>+	__KSYMTAB_ENTRY_NS(sym, sec, ns)
>>+
>>+#define ___EXPORT_SYMBOL(sym, sec)					\
>>+	___export_symbol_common(sym, sec);				\
>>	__KSYMTAB_ENTRY(sym, sec)
>>
>>#if defined(__DISABLE_EXPORTS)
>>@@ -91,6 +124,7 @@ struct kernel_symbol {
>> * be reused in other execution contexts such as the UEFI stub or the
>> * decompressor.
>> */
>>+#define __EXPORT_SYMBOL_NS(sym, sec, ns)
>>#define __EXPORT_SYMBOL(sym, sec)
>>
>>#elif defined(CONFIG_TRIM_UNUSED_KSYMS)
>>@@ -117,18 +151,26 @@ struct kernel_symbol {
>>#define __cond_export_sym_1(sym, sec) ___EXPORT_SYMBOL(sym, sec)
>>#define __cond_export_sym_0(sym, sec) /* nothing */
>>
>>+#define __EXPORT_SYMBOL_NS(sym, sec, ns)				\
>>+	__ksym_marker(sym);						\
>>+	__cond_export_ns_sym(sym, sec, ns, __is_defined(__KSYM_##sym))
>>+#define __cond_export_ns_sym(sym, sec, ns, conf)			\
>>+	___cond_export_ns_sym(sym, sec, ns, conf)
>>+#define ___cond_export_ns_sym(sym, sec, ns, enabled)			\
>>+	__cond_export_ns_sym_##enabled(sym, sec, ns)
>>+#define __cond_export_ns_sym_1(sym, sec, ns) ___EXPORT_SYMBOL_NS(sym, sec, ns)
>>+#define __cond_export_ns_sym_0(sym, sec, ns) /* nothing */
>>+
>>#else
>>+#define __EXPORT_SYMBOL_NS ___EXPORT_SYMBOL_NS
>>#define __EXPORT_SYMBOL ___EXPORT_SYMBOL
>>#endif
>>
>>-#define EXPORT_SYMBOL(sym)					\
>>-	__EXPORT_SYMBOL(sym, "")
>>-
>>-#define EXPORT_SYMBOL_GPL(sym)					\
>>-	__EXPORT_SYMBOL(sym, "_gpl")
>>-
>>-#define EXPORT_SYMBOL_GPL_FUTURE(sym)				\
>>-	__EXPORT_SYMBOL(sym, "_gpl_future")
>>+#define EXPORT_SYMBOL(sym) __EXPORT_SYMBOL(sym, "")
>>+#define EXPORT_SYMBOL_GPL(sym) __EXPORT_SYMBOL(sym, "_gpl")
>>+#define EXPORT_SYMBOL_GPL_FUTURE(sym) __EXPORT_SYMBOL(sym, "_gpl_future")
>>+#define EXPORT_SYMBOL_NS(sym, ns) __EXPORT_SYMBOL_NS(sym, "", ns)
>>+#define EXPORT_SYMBOL_NS_GPL(sym, ns) __EXPORT_SYMBOL_NS(sym, "_gpl", ns)
>>
>>#ifdef CONFIG_UNUSED_SYMBOLS
>>#define EXPORT_UNUSED_SYMBOL(sym) __EXPORT_SYMBOL(sym, "_unused")
>>@@ -138,11 +180,28 @@ struct kernel_symbol {
>>#define EXPORT_UNUSED_SYMBOL_GPL(sym)
>>#endif
>>
>>-#endif	/* __GENKSYMS__ */
>>+#endif	/* __KERNEL__ && !__GENKSYMS__ */
>>+
>>+#if defined(__GENKSYMS__)
>>+/*
>>+ * When we're running genksyms, ignore the namespace and make the _NS
>>+ * variants look like the normal ones. There are two reasons for this:
>>+ * 1) In the normal definition of EXPORT_SYMBOL_NS, the 'ns' macro
>>+ *    argument is itself not expanded because it's always tokenized or
>>+ *    concatenated; but when running genksyms, a blank definition of the
>>+ *    macro does allow the argument to be expanded; if a namespace
>>+ *    happens to collide with a #define, this can cause issues.
>>+ * 2) There's no need to modify genksyms to deal with the _NS variants
>>+ */
>>+#define EXPORT_SYMBOL_NS(sym, ns) EXPORT_SYMBOL(sym)
>>+#define EXPORT_SYMBOL_NS_GPL(sym, ns) EXPORT_SYMBOL_GPL(sym)
>>+#endif
>>
>>#else /* !CONFIG_MODULES... */
>>
>>#define EXPORT_SYMBOL(sym)
>>+#define EXPORT_SYMBOL_NS(sym, ns)
>>+#define EXPORT_SYMBOL_NS_GPL(sym, ns)
>>#define EXPORT_SYMBOL_GPL(sym)
>>#define EXPORT_SYMBOL_GPL_FUTURE(sym)
>>#define EXPORT_UNUSED_SYMBOL(sym)
>>diff --git a/include/linux/module.h b/include/linux/module.h
>>index 1455812dd325..b3611e749f72 100644
>>--- a/include/linux/module.h
>>+++ b/include/linux/module.h
>>@@ -280,6 +280,8 @@ struct notifier_block;
>>
>>#ifdef CONFIG_MODULES
>>
>>+#define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
>>+
>>extern int modules_disabled; /* for sysctl */
>>/* Get/put a kernel symbol (calls must be symmetric) */
>>void *__symbol_get(const char *symbol);
>>diff --git a/kernel/module.c b/kernel/module.c
>>index a23067907169..57e8253f2251 100644
>>--- a/kernel/module.c
>>+++ b/kernel/module.c
>>@@ -544,6 +544,15 @@ static const char *kernel_symbol_name(const struct kernel_symbol *sym)
>>#endif
>>}
>>
>>+static const char *kernel_symbol_namespace(const struct kernel_symbol *sym)
>>+{
>>+#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
>>+	return offset_to_ptr(&sym->namespace_offset);
>>+#else
>>+	return sym->namespace;
>>+#endif
>>+}
>>+
>>static int cmp_name(const void *va, const void *vb)
>>{
>>	const char *a;
>>@@ -1379,6 +1388,34 @@ static inline int same_magic(const char *amagic, const char *bmagic,
>>}
>>#endif /* CONFIG_MODVERSIONS */
>>
>>+static char *get_modinfo(const struct load_info *info, const char *tag);
>>+static char *get_next_modinfo(const struct load_info *info, const char *tag,
>>+			      char *prev);
>>+
>>+static int verify_namespace_is_imported(const struct load_info *info,
>>+					const struct kernel_symbol *sym,
>>+					struct module *mod)
>>+{
>>+	const char *namespace;
>>+	char *imported_namespace;
>>+
>>+	namespace = kernel_symbol_namespace(sym);
>>+	if (namespace) {
>>+		imported_namespace = get_modinfo(info, "import_ns");
>>+		while (imported_namespace) {
>>+			if (strcmp(namespace, imported_namespace) == 0)
>>+				return 0;
>>+			imported_namespace = get_next_modinfo(
>>+				info, "import_ns", imported_namespace);
>>+		}
>>+		pr_err("%s: module uses symbol (%s) from namespace %s, but does not import it.\n",
>>+		       mod->name, kernel_symbol_name(sym), namespace);
>>+		return -EINVAL;
>>+	}
>>+	return 0;
>>+}
>>+
>>+
>>/* Resolve a symbol for this module.  I.e. if we find one, record usage. */
>>static const struct kernel_symbol *resolve_symbol(struct module *mod,
>>						  const struct load_info *info,
>>@@ -1413,6 +1450,12 @@ static const struct kernel_symbol *resolve_symbol(struct module *mod,
>>		goto getname;
>>	}
>>
>>+	err = verify_namespace_is_imported(info, sym, mod);
>>+	if (err) {
>>+		sym = ERR_PTR(err);
>>+		goto getname;
>>+	}
>
>I think we should verify the namespace before taking a reference to
>the owner module (just swap the verify_namespace_is_imported() and
>ref_module() calls here).
>
>Other than that, this patch looks good. Thanks!
>

Thanks! I will address the points above.

Cheers,
Matthias

>>+
>>getname:
>>	/* We must make copy under the lock if we failed to get ref. */
>>	strncpy(ownername, module_name(owner), MODULE_NAME_LEN);
>>-- 
>>2.23.0.rc1.153.gdeed80330f-goog
>>

  reply index

Thread overview: 107+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180716122125.175792-1-maco@android.com>
     [not found] ` <20180716122125.175792-3-maco@android.com>
     [not found]   ` <CAB0TPYEOVHcFGFLTjVvk7R0VSgSnXZRi1PjSYXONJSjqd4NewQ@mail.gmail.com>
     [not found]     ` <20180725155507.umb5oatduquxwlmt@linux-8ccs>
2018-07-25 16:48       ` [PATCH 2/6] " Lucas De Marchi
2018-07-26  7:44         ` Martijn Coenen
2019-08-13 12:16 ` [PATCH v2 0/10] Symbol namespaces - RFC Matthias Maennich
2019-08-13 12:16   ` [PATCH v2 01/10] module: support reading multiple values per modinfo tag Matthias Maennich
2019-08-13 12:40     ` Greg KH
2019-08-13 12:16   ` [PATCH v2 02/10] export: explicitly align struct kernel_symbol Matthias Maennich
2019-08-13 12:41     ` Greg KH
2019-08-13 12:17   ` [PATCH v2 03/10] module: add support for symbol namespaces Matthias Maennich
2019-08-13 15:26     ` Greg KH
2019-08-13 12:17   ` [PATCH v2 04/10] modpost: " Matthias Maennich
2019-08-13 15:27     ` Greg KH
2019-08-13 12:17   ` [PATCH v2 05/10] module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS Matthias Maennich
2019-08-13 18:17     ` Greg KH
2019-08-13 20:15     ` Saravana Kannan
2019-08-14 12:54       ` Matthias Maennich
2019-08-14 17:34         ` Saravana Kannan
2019-08-13 12:17   ` [PATCH v2 06/10] export: allow definition default namespaces in Makefiles or sources Matthias Maennich
2019-08-13 18:16     ` Greg KH
2019-08-13 18:16     ` Greg KH
2019-08-13 12:17   ` [PATCH v2 07/10] modpost: add support for generating namespace dependencies Matthias Maennich
2019-08-13 18:21     ` Greg KH
2019-08-13 12:17   ` [PATCH v2 08/10] scripts: Coccinelle script for " Matthias Maennich
2019-08-13 12:31     ` Julia Lawall
2019-08-13 12:44     ` Greg KH
2019-08-14  6:36     ` [Cocci] " Himanshu Jha
2019-08-14  8:03       ` Matthias Maennich
2019-08-14 12:00     ` [v2 " Markus Elfring
2019-08-15 13:50     ` Markus Elfring
2019-08-22  9:18       ` Matthias Maennich
2019-08-22 11:00         ` Markus Elfring
2019-08-13 12:17   ` [PATCH v2 09/10] usb-storage: remove single-use define for debugging Matthias Maennich
2019-08-13 12:42     ` Greg KH
2019-08-13 13:12       ` Greg KH
2019-08-13 12:17   ` [PATCH v2 10/10] RFC: usb-storage: export symbols in USB_STORAGE namespace Matthias Maennich
2019-08-13 12:45     ` Greg KH
2019-08-13 12:47     ` Greg KH
2019-08-13 15:02       ` Matthias Maennich
     [not found]   ` <20190821114955.12788-1-maennich@google.com>
2019-08-21 11:49     ` [PATCH v3 01/11] module: support reading multiple values per modinfo tag Matthias Maennich
2019-08-21 11:49     ` [PATCH v3 02/11] export: explicitly align struct kernel_symbol Matthias Maennich
2019-08-21 11:49     ` [PATCH v3 03/11] module: add support for symbol namespaces Matthias Maennich
2019-08-27 15:37       ` Jessica Yu
2019-08-27 16:04         ` Matthias Maennich [this message]
2019-08-21 11:49     ` [PATCH v3 04/11] modpost: " Matthias Maennich
2019-08-26 16:21       ` Jessica Yu
2019-08-27 14:41         ` Matthias Maennich
2019-08-28  9:43           ` Jessica Yu
2019-08-28  9:55             ` Matthias Maennich
2019-08-28 10:16               ` Jessica Yu
2019-08-21 11:49     ` [PATCH v3 05/11] module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS Matthias Maennich
2019-08-21 11:49     ` [PATCH v3 06/11] export: allow definition default namespaces in Makefiles or sources Matthias Maennich
2019-08-28 10:49       ` Jessica Yu
2019-08-28 10:56         ` Matthias Maennich
2019-08-21 11:49     ` [PATCH v3 07/11] modpost: add support for generating namespace dependencies Matthias Maennich
2019-08-21 11:49     ` [PATCH v3 08/11] scripts: Coccinelle script for " Matthias Maennich
2019-08-22  6:09       ` [v3 " Markus Elfring
2019-08-29 12:13       ` [PATCH v3 " Jessica Yu
2019-08-21 11:49     ` [PATCH v3 09/11] usb-storage: remove single-use define for debugging Matthias Maennich
2019-08-21 12:37       ` Greg KH
2019-08-21 13:21       ` Thomas Gleixner
2019-08-21 13:32         ` Greg KH
2019-08-21 11:49     ` [PATCH v3 10/11] RFC: usb-storage: export symbols in USB_STORAGE namespace Matthias Maennich
2019-08-21 12:38       ` Greg KH
2019-08-21 14:36         ` Jessica Yu
2019-08-21 23:13       ` Christoph Hellwig
2019-08-22  8:32         ` Matthias Maennich
2019-09-03 15:06 ` [PATCH v4 00/12] Symbol Namespaces Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 01/12] module: support reading multiple values per modinfo tag Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 02/12] export: explicitly align struct kernel_symbol Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 03/12] module: add support for symbol namespaces Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 04/12] modpost: " Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 05/12] module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 06/12] export: allow definition default namespaces in Makefiles or sources Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 07/12] modpost: add support for generating namespace dependencies Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 08/12] scripts: Coccinelle script for " Matthias Maennich
2019-09-04  9:53     ` Masahiro Yamada
2019-09-05 14:46       ` Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 09/12] docs: Add documentation for Symbol Namespaces Matthias Maennich
2019-09-04  7:16     ` Greg KH
2019-09-03 15:06   ` [PATCH v4 10/12] usb-storage: remove single-use define for debugging Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 11/12] RFC: usb-storage: export symbols in USB_STORAGE namespace Matthias Maennich
2019-09-03 15:06   ` [PATCH v4 12/12] RFC: watchdog: export core symbols in WATCHDOG_CORE namespace Matthias Maennich
2019-09-03 16:10     ` Guenter Roeck
2019-09-04  8:45       ` Masahiro Yamada
2019-09-04 12:12         ` Guenter Roeck
2019-09-04 16:16           ` [usb-storage] " Matthew Dharm
2019-09-05 10:41             ` Jessica Yu
2019-09-05 10:52               ` Arnd Bergmann
2019-09-05 11:16                 ` Jessica Yu
2019-09-05 11:25                   ` Masahiro Yamada
2019-09-05 12:00                     ` Greg Kroah-Hartman
2019-09-05 11:25               ` Matthias Maennich
2019-09-04  9:37   ` [PATCH v4 00/12] Symbol Namespaces Masahiro Yamada
2019-09-06 10:32 ` [PATCH v5 00/11] " Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 01/11] module: support reading multiple values per modinfo tag Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 02/11] export: explicitly align struct kernel_symbol Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 03/11] module: add support for symbol namespaces Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 04/11] modpost: " Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 05/11] module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 06/11] export: allow definition default namespaces in Makefiles or sources Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 07/11] modpost: add support for generating namespace dependencies Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 08/11] scripts: Coccinelle script for " Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 09/11] docs: Add documentation for Symbol Namespaces Matthias Maennich
2019-09-06 10:32   ` [PATCH v5 10/11] usb-storage: remove single-use define for debugging Matthias Maennich
2019-09-06 12:59     ` Jessica Yu
2019-09-06 13:22       ` Greg KH
2019-09-06 10:32   ` [PATCH v5 11/11] usb-storage: export symbols in USB_STORAGE namespace Matthias Maennich
2019-09-09  8:35   ` [PATCH v5 00/11] Symbol Namespaces Jessica Yu

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