* [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return'
@ 2022-03-02 2:52 kernel test robot
2022-03-02 6:15 ` Ard Biesheuvel
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2022-03-02 2:52 UTC (permalink / raw)
To: Ard Biesheuvel
Cc: llvm, kbuild-all, Linux Memory Management List, Steven Rostedt (Google)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: e6ada6df471f847da3b09b357e246c62335bc0bb
commit: 41918ec82eb6f80c8b401422f27ca76c85aa0cb7 [4044/9592] ARM: ftrace: enable the graph tracer with the EABI unwinder
config: arm-bcm2835_defconfig (https://download.01.org/0day-ci/archive/20220302/202203020913.I6LbmH7l-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=41918ec82eb6f80c8b401422f27ca76c85aa0cb7
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 41918ec82eb6f80c8b401422f27ca76c85aa0cb7
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' [-Wmissing-prototypes]
void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
^
arch/arm/kernel/ftrace.c:229:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
^
static
1 warning generated.
vim +/prepare_ftrace_return +229 arch/arm/kernel/ftrace.c
376cfa8730c08c0 Tim Bird 2010-10-09 226
376cfa8730c08c0 Tim Bird 2010-10-09 227 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 228 asmlinkage
376cfa8730c08c0 Tim Bird 2010-10-09 @229 void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 230 unsigned long frame_pointer,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 231 unsigned long stack_pointer)
376cfa8730c08c0 Tim Bird 2010-10-09 232 {
376cfa8730c08c0 Tim Bird 2010-10-09 233 unsigned long return_hooker = (unsigned long) &return_to_handler;
376cfa8730c08c0 Tim Bird 2010-10-09 234 unsigned long old;
376cfa8730c08c0 Tim Bird 2010-10-09 235
376cfa8730c08c0 Tim Bird 2010-10-09 236 if (unlikely(atomic_read(¤t->tracing_graph_pause)))
376cfa8730c08c0 Tim Bird 2010-10-09 237 return;
376cfa8730c08c0 Tim Bird 2010-10-09 238
953f534a7ed6b72 Ard Biesheuvel 2022-01-25 239 if (IS_ENABLED(CONFIG_UNWINDER_FRAME_POINTER)) {
953f534a7ed6b72 Ard Biesheuvel 2022-01-25 240 /* FP points one word below parent's top of stack */
953f534a7ed6b72 Ard Biesheuvel 2022-01-25 241 frame_pointer += 4;
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 242 } else {
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 243 struct stackframe frame = {
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 244 .fp = frame_pointer,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 245 .sp = stack_pointer,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 246 .lr = self_addr,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 247 .pc = self_addr,
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 248 };
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 249 if (unwind_frame(&frame) < 0)
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 250 return;
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 251 if (frame.lr != self_addr)
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 252 parent = frame.lr_addr;
41918ec82eb6f80 Ard Biesheuvel 2022-01-25 253 frame_pointer = frame.sp;
953f534a7ed6b72 Ard Biesheuvel 2022-01-25 254 }
953f534a7ed6b72 Ard Biesheuvel 2022-01-25 255
376cfa8730c08c0 Tim Bird 2010-10-09 256 old = *parent;
376cfa8730c08c0 Tim Bird 2010-10-09 257 *parent = return_hooker;
376cfa8730c08c0 Tim Bird 2010-10-09 258
f1f5b14afd7cce3 Steven Rostedt (VMware 2018-11-18 259) if (function_graph_enter(old, self_addr, frame_pointer, NULL))
376cfa8730c08c0 Tim Bird 2010-10-09 260 *parent = old;
376cfa8730c08c0 Tim Bird 2010-10-09 261 }
dd686eb13959e49 Rabin Vincent 2010-11-06 262
:::::: The code at line 229 was first introduced by commit
:::::: 376cfa8730c08c0394d0aa1d4a80fd8c9971f323 ARM: ftrace: function graph tracer support
:::::: TO: Tim Bird <tim.bird@am.sony.com>
:::::: CC: Rabin Vincent <rabin@rab.in>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return'
2022-03-02 2:52 [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' kernel test robot
@ 2022-03-02 6:15 ` Ard Biesheuvel
0 siblings, 0 replies; 4+ messages in thread
From: Ard Biesheuvel @ 2022-03-02 6:15 UTC (permalink / raw)
To: kernel test robot, Rong Chen
Cc: llvm, kbuild-all, Linux Memory Management List, Steven Rostedt (Google)
(cc Rong Chen)
On Wed, 2 Mar 2022 at 03:52, kernel test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: e6ada6df471f847da3b09b357e246c62335bc0bb
> commit: 41918ec82eb6f80c8b401422f27ca76c85aa0cb7 [4044/9592] ARM: ftrace: enable the graph tracer with the EABI unwinder
> config: arm-bcm2835_defconfig (https://download.01.org/0day-ci/archive/20220302/202203020913.I6LbmH7l-lkp@intel.com/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install arm cross compiling tool for clang build
> # apt-get install binutils-arm-linux-gnueabi
> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=41918ec82eb6f80c8b401422f27ca76c85aa0cb7
> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git fetch --no-tags linux-next master
> git checkout 41918ec82eb6f80c8b401422f27ca76c85aa0cb7
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' [-Wmissing-prototypes]
> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> ^
> arch/arm/kernel/ftrace.c:229:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> ^
> static
> 1 warning generated.
>
This function is asmlinkage so why is this still being reported?
>
> vim +/prepare_ftrace_return +229 arch/arm/kernel/ftrace.c
>
> 376cfa8730c08c0 Tim Bird 2010-10-09 226
> 376cfa8730c08c0 Tim Bird 2010-10-09 227 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 228 asmlinkage
> 376cfa8730c08c0 Tim Bird 2010-10-09 @229 void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 230 unsigned long frame_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 231 unsigned long stack_pointer)
> 376cfa8730c08c0 Tim Bird 2010-10-09 232 {
> 376cfa8730c08c0 Tim Bird 2010-10-09 233 unsigned long return_hooker = (unsigned long) &return_to_handler;
> 376cfa8730c08c0 Tim Bird 2010-10-09 234 unsigned long old;
> 376cfa8730c08c0 Tim Bird 2010-10-09 235
> 376cfa8730c08c0 Tim Bird 2010-10-09 236 if (unlikely(atomic_read(¤t->tracing_graph_pause)))
> 376cfa8730c08c0 Tim Bird 2010-10-09 237 return;
> 376cfa8730c08c0 Tim Bird 2010-10-09 238
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 239 if (IS_ENABLED(CONFIG_UNWINDER_FRAME_POINTER)) {
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 240 /* FP points one word below parent's top of stack */
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 241 frame_pointer += 4;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 242 } else {
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 243 struct stackframe frame = {
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 244 .fp = frame_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 245 .sp = stack_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 246 .lr = self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 247 .pc = self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 248 };
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 249 if (unwind_frame(&frame) < 0)
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 250 return;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 251 if (frame.lr != self_addr)
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 252 parent = frame.lr_addr;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 253 frame_pointer = frame.sp;
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 254 }
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 255
> 376cfa8730c08c0 Tim Bird 2010-10-09 256 old = *parent;
> 376cfa8730c08c0 Tim Bird 2010-10-09 257 *parent = return_hooker;
> 376cfa8730c08c0 Tim Bird 2010-10-09 258
> f1f5b14afd7cce3 Steven Rostedt (VMware 2018-11-18 259) if (function_graph_enter(old, self_addr, frame_pointer, NULL))
> 376cfa8730c08c0 Tim Bird 2010-10-09 260 *parent = old;
> 376cfa8730c08c0 Tim Bird 2010-10-09 261 }
> dd686eb13959e49 Rabin Vincent 2010-11-06 262
>
> :::::: The code at line 229 was first introduced by commit
> :::::: 376cfa8730c08c0394d0aa1d4a80fd8c9971f323 ARM: ftrace: function graph tracer support
>
> :::::: TO: Tim Bird <tim.bird@am.sony.com>
> :::::: CC: Rabin Vincent <rabin@rab.in>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return'
@ 2022-03-02 6:15 ` Ard Biesheuvel
0 siblings, 0 replies; 4+ messages in thread
From: Ard Biesheuvel @ 2022-03-02 6:15 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 6042 bytes --]
(cc Rong Chen)
On Wed, 2 Mar 2022 at 03:52, kernel test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: e6ada6df471f847da3b09b357e246c62335bc0bb
> commit: 41918ec82eb6f80c8b401422f27ca76c85aa0cb7 [4044/9592] ARM: ftrace: enable the graph tracer with the EABI unwinder
> config: arm-bcm2835_defconfig (https://download.01.org/0day-ci/archive/20220302/202203020913.I6LbmH7l-lkp(a)intel.com/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install arm cross compiling tool for clang build
> # apt-get install binutils-arm-linux-gnueabi
> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=41918ec82eb6f80c8b401422f27ca76c85aa0cb7
> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git fetch --no-tags linux-next master
> git checkout 41918ec82eb6f80c8b401422f27ca76c85aa0cb7
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' [-Wmissing-prototypes]
> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> ^
> arch/arm/kernel/ftrace.c:229:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> ^
> static
> 1 warning generated.
>
This function is asmlinkage so why is this still being reported?
>
> vim +/prepare_ftrace_return +229 arch/arm/kernel/ftrace.c
>
> 376cfa8730c08c0 Tim Bird 2010-10-09 226
> 376cfa8730c08c0 Tim Bird 2010-10-09 227 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 228 asmlinkage
> 376cfa8730c08c0 Tim Bird 2010-10-09 @229 void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 230 unsigned long frame_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 231 unsigned long stack_pointer)
> 376cfa8730c08c0 Tim Bird 2010-10-09 232 {
> 376cfa8730c08c0 Tim Bird 2010-10-09 233 unsigned long return_hooker = (unsigned long) &return_to_handler;
> 376cfa8730c08c0 Tim Bird 2010-10-09 234 unsigned long old;
> 376cfa8730c08c0 Tim Bird 2010-10-09 235
> 376cfa8730c08c0 Tim Bird 2010-10-09 236 if (unlikely(atomic_read(¤t->tracing_graph_pause)))
> 376cfa8730c08c0 Tim Bird 2010-10-09 237 return;
> 376cfa8730c08c0 Tim Bird 2010-10-09 238
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 239 if (IS_ENABLED(CONFIG_UNWINDER_FRAME_POINTER)) {
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 240 /* FP points one word below parent's top of stack */
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 241 frame_pointer += 4;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 242 } else {
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 243 struct stackframe frame = {
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 244 .fp = frame_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 245 .sp = stack_pointer,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 246 .lr = self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 247 .pc = self_addr,
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 248 };
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 249 if (unwind_frame(&frame) < 0)
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 250 return;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 251 if (frame.lr != self_addr)
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 252 parent = frame.lr_addr;
> 41918ec82eb6f80 Ard Biesheuvel 2022-01-25 253 frame_pointer = frame.sp;
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 254 }
> 953f534a7ed6b72 Ard Biesheuvel 2022-01-25 255
> 376cfa8730c08c0 Tim Bird 2010-10-09 256 old = *parent;
> 376cfa8730c08c0 Tim Bird 2010-10-09 257 *parent = return_hooker;
> 376cfa8730c08c0 Tim Bird 2010-10-09 258
> f1f5b14afd7cce3 Steven Rostedt (VMware 2018-11-18 259) if (function_graph_enter(old, self_addr, frame_pointer, NULL))
> 376cfa8730c08c0 Tim Bird 2010-10-09 260 *parent = old;
> 376cfa8730c08c0 Tim Bird 2010-10-09 261 }
> dd686eb13959e49 Rabin Vincent 2010-11-06 262
>
> :::::: The code at line 229 was first introduced by commit
> :::::: 376cfa8730c08c0394d0aa1d4a80fd8c9971f323 ARM: ftrace: function graph tracer support
>
> :::::: TO: Tim Bird <tim.bird@am.sony.com>
> :::::: CC: Rabin Vincent <rabin@rab.in>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return'
2022-03-02 6:15 ` Ard Biesheuvel
(?)
@ 2022-03-02 6:35 ` Chen, Rong A
-1 siblings, 0 replies; 4+ messages in thread
From: Chen, Rong A @ 2022-03-02 6:35 UTC (permalink / raw)
To: Ard Biesheuvel, kernel test robot
Cc: llvm, kbuild-all, Linux Memory Management List, Steven Rostedt (Google)
On 3/2/2022 2:15 PM, Ard Biesheuvel wrote:
> (cc Rong Chen)
>
> On Wed, 2 Mar 2022 at 03:52, kernel test robot <lkp@intel.com> wrote:
>>
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
>> head: e6ada6df471f847da3b09b357e246c62335bc0bb
>> commit: 41918ec82eb6f80c8b401422f27ca76c85aa0cb7 [4044/9592] ARM: ftrace: enable the graph tracer with the EABI unwinder
>> config: arm-bcm2835_defconfig (https://download.01.org/0day-ci/archive/20220302/202203020913.I6LbmH7l-lkp@intel.com/config)
>> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
>> reproduce (this is a W=1 build):
>> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>> chmod +x ~/bin/make.cross
>> # install arm cross compiling tool for clang build
>> # apt-get install binutils-arm-linux-gnueabi
>> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=41918ec82eb6f80c8b401422f27ca76c85aa0cb7
>> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>> git fetch --no-tags linux-next master
>> git checkout 41918ec82eb6f80c8b401422f27ca76c85aa0cb7
>> # save the config file to linux build tree
>> mkdir build_dir
>> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@intel.com>
>>
>> All warnings (new ones prefixed by >>):
>>
>>>> arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' [-Wmissing-prototypes]
>> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
>> ^
>> arch/arm/kernel/ftrace.c:229:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
>> void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
>> ^
>> static
>> 1 warning generated.
>>
>
> This function is asmlinkage so why is this still being reported?
Hi Ard,
Thanks for the information, we only checked 'asmlinkage' from warning
messages:
>>>> arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype
for function 'prepare_ftrace_return' [-Wmissing-prototypes]
>> void prepare_ftrace_return(unsigned long *parent, unsigned long
self_addr,
but actually 'asmlinkage' is in another line:
asmlinkage
void prepare_ftrace_return(unsigned long *parent, unsigned long
self_addr,
we missed this kind of problem, I'll take a look at it.
Best Regards,
Rong Chen
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-03-02 6:35 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-03-02 2:52 [linux-next:master 4044/9592] arch/arm/kernel/ftrace.c:229:6: warning: no previous prototype for function 'prepare_ftrace_return' kernel test robot
2022-03-02 6:15 ` Ard Biesheuvel
2022-03-02 6:15 ` Ard Biesheuvel
2022-03-02 6:35 ` Chen, Rong A
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