linux-kernel - Re: [PATCH 3/3] csky: Fix function name in csky

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Date:   Tue, 28 Dec 2021 09:47:23 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Nathan Chancellor <nathan@...nel.org>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Brian Cain <bcain@...eaurora.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] csky: Fix function name in csky_alignment() and die()

Sorry mm/fault.c is okay.

Reviewed-by: Guo Ren <guoren@...nel.org>

On Tue, Dec 28, 2021 at 9:46 AM Guo Ren <guoren@...nel.org> wrote:
>
> Hi Nathan,
>
> Three wrong parts in csky! you forgot mm/fault.c.
>
> Eric's patch seems not to cc me? Why arm64 is correct, csky is wrong. -_*!
>
> here is the wrong patch part:
> diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
> index 9ae24e3b72be1..11a28cace2d25 100644
> --- a/arch/arm64/mm/fault.c
> +++ b/arch/arm64/mm/fault.c
> @@ -302,7 +302,7 @@ static void die_kernel_fault(const char *msg,
> unsigned long addr,
> show_pte(addr);
> die("Oops", regs, esr);
> bust_spinlocks(0);
> - do_exit(SIGKILL);
> + make_task_dead(SIGKILL);
> }
> #ifdef CONFIG_KASAN_HW_TAGS
> diff --git a/arch/csky/abiv1/alignment.c b/arch/csky/abiv1/alignment.c
> index cb2a0d94a144d..5e2fb45d605cf 100644
> --- a/arch/csky/abiv1/alignment.c
> +++ b/arch/csky/abiv1/alignment.c
> @@ -294,7 +294,7 @@ bad_area:
> __func__, opcode, rz, rx, imm, addr);
> show_regs(regs);
> bust_spinlocks(0);
> - do_exit(SIGKILL);
> + make_dead_task(SIGKILL);
> }
> force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)addr);
> diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c
> index e5fbf8653a215..88a47035b9256 100644
> --- a/arch/csky/kernel/traps.c
> +++ b/arch/csky/kernel/traps.c
> @@ -109,7 +109,7 @@ void die(struct pt_regs *regs, const char *str)
> if (panic_on_oops)
> panic("Fatal exception");
> if (ret != NOTIFY_STOP)
> - do_exit(SIGSEGV);
> + make_dead_task(SIGSEGV);
> }
> void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)
> diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c
> index 466ad949818a6..7215a46b6b8eb 100644
> --- a/arch/csky/mm/fault.c
> +++ b/arch/csky/mm/fault.c
> @@ -67,7 +67,7 @@ static inline void no_context(struct pt_regs *regs,
> unsigned long addr)
> pr_alert("Unable to handle kernel paging request at virtual "
> "addr 0x%08lx, pc: 0x%08lx\n", addr, regs->pc);
> die(regs, "Oops");
> - do_exit(SIGKILL);
> + make_task_dead(SIGKILL);
> }
>
> On Tue, Dec 28, 2021 at 2:50 AM Nathan Chancellor <nathan@...nel.org> wrote:
> >
> > When building ARCH=csky defconfig:
> >
> > arch/csky/kernel/traps.c: In function 'die':
> > arch/csky/kernel/traps.c:112:17: error: implicit declaration of function
> > 'make_dead_task' [-Werror=implicit-function-declaration]
> >   112 |                 make_dead_task(SIGSEGV);
> >       |                 ^~~~~~~~~~~~~~
> >
> > The function's name is make_task_dead(), change it so there is no more
> > build error.
> >
> > Fixes: 0e25498f8cd4 ("exit: Add and use make_task_dead.")
> > Signed-off-by: Nathan Chancellor <nathan@...nel.org>
> > ---
> >  arch/csky/abiv1/alignment.c | 2 +-
> >  arch/csky/kernel/traps.c    | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/csky/abiv1/alignment.c b/arch/csky/abiv1/alignment.c
> > index 5e2fb45d605c..2df115d0e210 100644
> > --- a/arch/csky/abiv1/alignment.c
> > +++ b/arch/csky/abiv1/alignment.c
> > @@ -294,7 +294,7 @@ void csky_alignment(struct pt_regs *regs)
> >                                 __func__, opcode, rz, rx, imm, addr);
> >                 show_regs(regs);
> >                 bust_spinlocks(0);
> > -               make_dead_task(SIGKILL);
> > +               make_task_dead(SIGKILL);
> >         }
> >
> >         force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)addr);
> > diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c
> > index 88a47035b925..50481d12d236 100644
> > --- a/arch/csky/kernel/traps.c
> > +++ b/arch/csky/kernel/traps.c
> > @@ -109,7 +109,7 @@ void die(struct pt_regs *regs, const char *str)
> >         if (panic_on_oops)
> >                 panic("Fatal exception");
> >         if (ret != NOTIFY_STOP)
> > -               make_dead_task(SIGSEGV);
> > +               make_task_dead(SIGSEGV);
> >  }
> >
> >  void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)
> > --
> > 2.34.1
> >
>
>
> --
> Best Regards
>  Guo Ren
>
> ML: https://lore.kernel.org/linux-csky/



-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/