linux-boundary: bump revision to 47a070fb

Fix build for GCC >= 9 and remove patches that are no longer needed
Add EDP version of Nitrogen8M
Fix PMIC voltage issue for 8M Mini

Signed-off-by: Chris Dimich <Chris.Dimich@boundarydevices.com>
This commit is contained in:
Chris Dimich 2020-03-30 15:28:51 -07:00 committed by Otavio Salvador
parent f67ec82839
commit c536f44343
3 changed files with 1 additions and 184 deletions

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@ -1,98 +0,0 @@
From 2a0f719db71c69f5a04fcfc164f12f58f3ee7703 Mon Sep 17 00:00:00 2001
From: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Date: Fri, 8 Feb 2019 23:51:05 +0100
Subject: [PATCH] Compiler Attributes: add support for __copy (gcc >= 9)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit c0d9782f5b6d7157635ae2fd782a4b27d55a6013 upstream.
From the GCC manual:
copy
copy(function)
The copy attribute applies the set of attributes with which function
has been declared to the declaration of the function to which
the attribute is applied. The attribute is designed for libraries
that define aliases or function resolvers that are expected
to specify the same set of attributes as their targets. The copy
attribute can be used with functions, variables, or types. However,
the kind of symbol to which the attribute is applied (either
function or variable) must match the kind of symbol to which
the argument refers. The copy attribute copies only syntactic and
semantic attributes but not attributes that affect a symbols
linkage or visibility such as alias, visibility, or weak.
The deprecated attribute is also not copied.
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html
The upcoming GCC 9 release extends the -Wmissing-attributes warnings
(enabled by -Wall) to C and aliases: it warns when particular function
attributes are missing in the aliases but not in their target, e.g.:
void __cold f(void) {}
void __alias("f") g(void);
diagnoses:
warning: 'g' specifies less restrictive attribute than
its target 'f': 'cold' [-Wmissing-attributes]
Using __copy(f) we can copy the __cold attribute from f to g:
void __cold f(void) {}
void __copy(f) __alias("f") g(void);
This attribute is most useful to deal with situations where an alias
is declared but we don't know the exact attributes the target has.
For instance, in the kernel, the widely used module_init/exit macros
define the init/cleanup_module aliases, but those cannot be marked
always as __init/__exit since some modules do not have their
functions marked as such.
Suggested-by: Martin Sebor <msebor@gcc.gnu.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/compiler-gcc.h | 4 ++++
include/linux/compiler_types.h | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index a8ff0ca..3ebee1c 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -345,6 +345,10 @@
#endif /* gcc version >= 40000 specific checks */
+#if GCC_VERSION >= 90100
+#define __copy(symbol) __attribute__((__copy__(symbol)))
+#endif
+
#if !defined(__noclone)
#define __noclone /* not needed */
#endif
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index c2ded31..2b8ed70 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -261,6 +261,10 @@ struct ftrace_likely_data {
#define __visible
#endif
+#ifndef __copy
+# define __copy(symbol)
+#endif
+
#ifndef __nostackprotector
# define __nostackprotector
#endif
--
2.7.4

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@ -1,83 +0,0 @@
From 9468870f7cbdb4d7ca828d02d4ff507c01fe591d Mon Sep 17 00:00:00 2001
From: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Date: Sat, 19 Jan 2019 20:59:34 +0100
Subject: [PATCH] include/linux/module.h: copy __init/__exit attrs to
init/cleanup_module
commit a6e60d84989fa0e91db7f236eda40453b0e44afa upstream.
The upcoming GCC 9 release extends the -Wmissing-attributes warnings
(enabled by -Wall) to C and aliases: it warns when particular function
attributes are missing in the aliases but not in their target.
In particular, it triggers for all the init/cleanup_module
aliases in the kernel (defined by the module_init/exit macros),
ending up being very noisy.
These aliases point to the __init/__exit functions of a module,
which are defined as __cold (among other attributes). However,
the aliases themselves do not have the __cold attribute.
Since the compiler behaves differently when compiling a __cold
function as well as when compiling paths leading to calls
to __cold functions, the warning is trying to point out
the possibly-forgotten attribute in the alias.
In order to keep the warning enabled, we decided to silence
this case. Ideally, we would mark the aliases directly
as __init/__exit. However, there are currently around 132 modules
in the kernel which are missing __init/__exit in their init/cleanup
functions (either because they are missing, or for other reasons,
e.g. the functions being called from somewhere else); and
a section mismatch is a hard error.
A conservative alternative was to mark the aliases as __cold only.
However, since we would like to eventually enforce __init/__exit
to be always marked, we chose to use the new __copy function
attribute (introduced by GCC 9 as well to deal with this).
With it, we copy the attributes used by the target functions
into the aliases. This way, functions that were not marked
as __init/__exit won't have their aliases marked either,
and therefore there won't be a section mismatch.
Note that the warning would go away marking either the extern
declaration, the definition, or both. However, we only mark
the definition of the alias, since we do not want callers
(which only see the declaration) to be compiled as if the function
was __cold (and therefore the paths leading to those calls
would be assumed to be unlikely).
Link: https://lore.kernel.org/lkml/20190123173707.GA16603@gmail.com/
Link: https://lore.kernel.org/lkml/20190206175627.GA20399@gmail.com/
Suggested-by: Martin Sebor <msebor@gcc.gnu.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/module.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index c710446..9915397 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -130,13 +130,13 @@ extern void cleanup_module(void);
#define module_init(initfn) \
static inline initcall_t __maybe_unused __inittest(void) \
{ return initfn; } \
- int init_module(void) __attribute__((alias(#initfn)));
+ int init_module(void) __copy(initfn) __attribute__((alias(#initfn)));
/* This is only required if you want to be unloadable. */
#define module_exit(exitfn) \
static inline exitcall_t __maybe_unused __exittest(void) \
{ return exitfn; } \
- void cleanup_module(void) __attribute__((alias(#exitfn)));
+ void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn)));
#endif
--
2.7.4

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@ -6,13 +6,11 @@ require recipes-kernel/linux/linux-imx.inc
SUMMARY = "Linux kernel for Boundary Devices boards"
SRC_URI = "git://github.com/boundarydevices/linux-imx6.git;branch=${SRCBRANCH} \
file://0001-Compiler-Attributes-add-support-for-__copy-gcc-9.patch \
file://0002-include-linux-module.h-copy-__init-__exit-attrs-to-i.patch \
"
LOCALVERSION = "-2.0.0-ga+yocto"
SRCBRANCH = "boundary-imx_4.14.x_2.0.0_ga"
SRCREV = "9abee5da4fbc750da202dbba086ff355c0655d54"
SRCREV = "47a070fb51bfafbce4dc6089be3a19d027d16b55"
DEPENDS += "lzop-native bc-native"
COMPATIBLE_MACHINE = "(nitrogen6x|nitrogen6x-lite|nitrogen6sx|nitrogen7|nitrogen8m|nitrogen8mm)"