2020-05-08 14:10:21

by Yue Haibing

[permalink] [raw]
Subject: [PATCH -next] s390: Remove two unused inline functions

commit 657480d9c015 ("s390: support KPROBES_ON_FTRACE")
left behind this, remove it.

Signed-off-by: YueHaibing <[email protected]>
---
arch/s390/kernel/ftrace.c | 16 ----------------
1 file changed, 16 deletions(-)

diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 4cd9b1ada834..44e01dd1e624 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -72,22 +72,6 @@ static inline void ftrace_generate_orig_insn(struct ftrace_insn *insn)
#endif
}

-static inline void ftrace_generate_kprobe_nop_insn(struct ftrace_insn *insn)
-{
-#ifdef CONFIG_KPROBES
- insn->opc = BREAKPOINT_INSTRUCTION;
- insn->disp = KPROBE_ON_FTRACE_NOP;
-#endif
-}
-
-static inline void ftrace_generate_kprobe_call_insn(struct ftrace_insn *insn)
-{
-#ifdef CONFIG_KPROBES
- insn->opc = BREAKPOINT_INSTRUCTION;
- insn->disp = KPROBE_ON_FTRACE_CALL;
-#endif
-}
-
int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
unsigned long addr)
{
--
2.17.1



2020-05-11 06:10:41

by Sven Schnelle

[permalink] [raw]
Subject: Re: [PATCH -next] s390: Remove two unused inline functions

Hi,

On Fri, May 08, 2020 at 10:07:24PM +0800, YueHaibing wrote:
> commit 657480d9c015 ("s390: support KPROBES_ON_FTRACE")
> left behind this, remove it.
>
> Signed-off-by: YueHaibing <[email protected]>
> ---
> arch/s390/kernel/ftrace.c | 16 ----------------
> 1 file changed, 16 deletions(-)
>
> diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
> index 4cd9b1ada834..44e01dd1e624 100644
> --- a/arch/s390/kernel/ftrace.c
> +++ b/arch/s390/kernel/ftrace.c
> @@ -72,22 +72,6 @@ static inline void ftrace_generate_orig_insn(struct ftrace_insn *insn)
> #endif
> }
>
> -static inline void ftrace_generate_kprobe_nop_insn(struct ftrace_insn *insn)
> -{
> -#ifdef CONFIG_KPROBES
> - insn->opc = BREAKPOINT_INSTRUCTION;
> - insn->disp = KPROBE_ON_FTRACE_NOP;
> -#endif
> -}
> -
> -static inline void ftrace_generate_kprobe_call_insn(struct ftrace_insn *insn)
> -{
> -#ifdef CONFIG_KPROBES
> - insn->opc = BREAKPOINT_INSTRUCTION;
> - insn->disp = KPROBE_ON_FTRACE_CALL;
> -#endif
> -}
> -
> int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
> unsigned long addr)
> {
> --
> 2.17.1

Thanks for noticing, looks like i missed them.

Acked-by: Sven Schnelle <[email protected]>

Sven

2020-05-11 20:20:25

by Steven Rostedt

[permalink] [raw]
Subject: Re: [PATCH -next] s390: Remove two unused inline functions

On Mon, 11 May 2020 08:07:51 +0200
Sven Schnelle <[email protected]> wrote:

> Thanks for noticing, looks like i missed them.
>
> Acked-by: Sven Schnelle <[email protected]>

As this is s390 specific, will it be going through the s390 repo?

-- Steve

2020-05-11 20:30:27

by Christian Borntraeger

[permalink] [raw]
Subject: Re: [PATCH -next] s390: Remove two unused inline functions

On 11.05.20 22:17, Steven Rostedt wrote:
> On Mon, 11 May 2020 08:07:51 +0200
> Sven Schnelle <[email protected]> wrote:
>
>> Thanks for noticing, looks like i missed them.
>>
>> Acked-by: Sven Schnelle <[email protected]>
>
> As this is s390 specific, will it be going through the s390 repo?

Yes.
I will pick this up. Vasily will then take care of it.

2020-05-11 20:41:21

by Joe Perches

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Subject: Re: [PATCH -next] s390: Remove two unused inline functions

On Mon, 2020-05-11 at 22:27 +0200, Christian Borntraeger wrote:
> On 11.05.20 22:17, Steven Rostedt wrote:
> > On Mon, 11 May 2020 08:07:51 +0200
> > Sven Schnelle <[email protected]> wrote:
> >
> > > Thanks for noticing, looks like i missed them.
> > >
> > > Acked-by: Sven Schnelle <[email protected]>
> >
> > As this is s390 specific, will it be going through the s390 repo?
>
> Yes.
> I will pick this up. Vasily will then take care of it.

Awhile back, I posted a list of apparently unused static inline
functions in .h files treewide found by a script:

https://lore.kernel.org/lkml/[email protected]/

Here are the s390 entries:

arch/s390/include/asm/atomic_ops.h:138:static inline long __atomic64_cmpxchg_bool(long *ptr, long old, long new)
arch/s390/include/asm/bitops.h:278:static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
arch/s390/include/asm/bitops.h:283:static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
arch/s390/include/asm/cpu_mcf.h:106:static inline int kernel_cpumcf_begin(void)
arch/s390/include/asm/cpu_mcf.h:114:static inline void kernel_cpumcf_end(void)
arch/s390/include/asm/ftrace.h:64:static inline int is_ftrace_nop(struct ftrace_insn *insn)
arch/s390/include/asm/kvm_para.h:146:static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
arch/s390/include/asm/kvm_para.h:175:static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
arch/s390/include/asm/pci_dma.h:134:static inline void invalidate_table_entry(unsigned long *entry)
arch/s390/include/asm/pci_dma.h:176:static inline int entry_isprotected(unsigned long entry)
arch/s390/include/asm/timex.h:52:static inline void store_clock_comparator(__u64 *time)


2020-05-11 20:41:31

by Christian Borntraeger

[permalink] [raw]
Subject: Re: [PATCH -next] s390: Remove two unused inline functions



On 08.05.20 16:07, YueHaibing wrote:
> commit 657480d9c015 ("s390: support KPROBES_ON_FTRACE")
> left behind this, remove it.
>
> Signed-off-by: YueHaibing <[email protected]>
> ---
> arch/s390/kernel/ftrace.c | 16 ----------------
> 1 file changed, 16 deletions(-)
>
> diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
> index 4cd9b1ada834..44e01dd1e624 100644
> --- a/arch/s390/kernel/ftrace.c
> +++ b/arch/s390/kernel/ftrace.c
> @@ -72,22 +72,6 @@ static inline void ftrace_generate_orig_insn(struct ftrace_insn *insn)
> #endif
> }
>
> -static inline void ftrace_generate_kprobe_nop_insn(struct ftrace_insn *insn)
> -{
> -#ifdef CONFIG_KPROBES
> - insn->opc = BREAKPOINT_INSTRUCTION;
> - insn->disp = KPROBE_ON_FTRACE_NOP;
> -#endif
> -}
> -
> -static inline void ftrace_generate_kprobe_call_insn(struct ftrace_insn *insn)
> -{
> -#ifdef CONFIG_KPROBES
> - insn->opc = BREAKPOINT_INSTRUCTION;
> - insn->disp = KPROBE_ON_FTRACE_CALL;
> -#endif
> -}
> -
> int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
> unsigned long addr)
> {
>

thanks, applied.

2020-05-12 06:20:33

by Sven Schnelle

[permalink] [raw]
Subject: Re: [PATCH -next] s390: Remove two unused inline functions

Hi Joe,

On Mon, May 11, 2020 at 01:38:57PM -0700, Joe Perches wrote:

> Awhile back, I posted a list of apparently unused static inline
> functions in .h files treewide found by a script:
>
> https://lore.kernel.org/lkml/[email protected]/
>
> Here are the s390 entries:
>
> arch/s390/include/asm/atomic_ops.h:138:static inline long __atomic64_cmpxchg_bool(long *ptr, long old, long new)
> arch/s390/include/asm/bitops.h:278:static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
> arch/s390/include/asm/bitops.h:283:static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
> arch/s390/include/asm/cpu_mcf.h:106:static inline int kernel_cpumcf_begin(void)
> arch/s390/include/asm/cpu_mcf.h:114:static inline void kernel_cpumcf_end(void)
> arch/s390/include/asm/ftrace.h:64:static inline int is_ftrace_nop(struct ftrace_insn *insn)
> arch/s390/include/asm/kvm_para.h:146:static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
> arch/s390/include/asm/kvm_para.h:175:static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
> arch/s390/include/asm/pci_dma.h:134:static inline void invalidate_table_entry(unsigned long *entry)
> arch/s390/include/asm/pci_dma.h:176:static inline int entry_isprotected(unsigned long entry)
> arch/s390/include/asm/timex.h:52:static inline void store_clock_comparator(__u64 *time)

Thanks, i take a look and prepare a patch.

Regards
Sven