linux-kernel - Re: [PATCH] bpf: convert to DEFINE_SHOW

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Date:   Thu, 13 Dec 2018 00:41:13 +0800
From:   Frank Lee <tiny.windzz@...il.com>
To:     jakub.kicinski@...ronome.com
Cc:     davem@...emloft.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bpf: convert to DEFINE_SHOW_ATTRIBUTE

On Tue, Dec 11, 2018 at 2:22 AM Jakub Kicinski
<jakub.kicinski@...ronome.com> wrote:
>
> On Mon, 10 Dec 2018 11:03:27 -0500, Yangtao Li wrote:
> > Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
> >
> > Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
>
> Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
>
> Please post v2 with the subject prefix set to "netdevsim:" rather than
> "bpf:".
The newer has been sent.

Thanks,
Yangtao
>
> >  drivers/net/netdevsim/bpf.c | 16 ++--------------
> >  1 file changed, 2 insertions(+), 14 deletions(-)
> >
> > diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
> > index cb3518474f0e..14b4d9774708 100644
> > --- a/drivers/net/netdevsim/bpf.c
> > +++ b/drivers/net/netdevsim/bpf.c
> > @@ -48,7 +48,7 @@ struct nsim_bpf_bound_map {
> >       struct list_head l;
> >  };
> >
> > -static int nsim_debugfs_bpf_string_read(struct seq_file *file, void *data)
> > +static int nsim_bpf_string_show(struct seq_file *file, void *data)
> >  {
> >       const char **str = file->private;
> >
> > @@ -57,19 +57,7 @@ static int nsim_debugfs_bpf_string_read(struct seq_file *file, void *data)
> >
> >       return 0;
> >  }
> > -
> > -static int nsim_debugfs_bpf_string_open(struct inode *inode, struct file *f)
> > -{
> > -     return single_open(f, nsim_debugfs_bpf_string_read, inode->i_private);
> > -}
> > -
> > -static const struct file_operations nsim_bpf_string_fops = {
> > -     .owner = THIS_MODULE,
> > -     .open = nsim_debugfs_bpf_string_open,
> > -     .release = single_release,
> > -     .read = seq_read,
> > -     .llseek = seq_lseek
> > -};
> > +DEFINE_SHOW_ATTRIBUTE(nsim_bpf_string);
> >
> >  static int
> >  nsim_bpf_verify_insn(struct bpf_verifier_env *env, int insn_idx, int prev_insn)
>