Re: [PATCH] staging: mt7621-mmc: Remove missed lines of the #if 0 block in sd.c

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On Thu, Dec 06, 2018 at 08:08:24AM +1100, NeilBrown wrote:
> On Wed, Dec 05 2018, Nishad Kamdar wrote:
> 
> > The below patch
> > https://lore.kernel.org/patchwork/patch/995533/
> > does not completely remove an #if 0 block in sd.c.
> 
> Standard practice is to identify patches by their commit id.
> In this case you could
>   git log --oneline  drivers/staging/mt7621-mmc/sd.c
> 
> choose the right patch, and copy/paste with a bit of editing, so:
> 
>   Commit 2a54e3259e2a ("staging: mt7621-mmc: Remove #if 0 blocks in
>   sd.c") does not completely ....
> 
> I have
> 
>   [alias]
>   	cm = !git --no-pager show -s --format=cm
> 	fx = !git --no-pager show -s --format=fixes
>   [pretty]
> 	fixes = Fixes: %h (\"%s\")
> 	cm = Commit %h (\"%s\")
> 
> in my $HOME/.gitconfig so I can get the text with, e.g.,
> 
>   $ git cm 2a54e3259e2a
>   Commit 2a54e3259e2a ("staging: mt7621-mmc: Remove #if 0 blocks in sd.c")
> 
> Then as that commit introduced a problem, it is best-practice to also do
> 
>   $ git fx 2a54e3259e2a
>   Fixes: 2a54e3259e2a ("staging: mt7621-mmc: Remove #if 0 blocks in sd.c")
> 
> and add the "Fixes" near the Signed-off-by line.
> 
> Thanks,
> NeilBrown
> 
> 
Ok. I'll do that and resubmit.

Thanks for the review and guidance.

Regards,
Nishad

> > This causes the function msdc_select_clksrc()
> > which was earler not compiled, to be compiled.
> > That causes an error - MSDC_CLKSRC_REG is not
> > defined.
> >
> > This patch completely removes the #if 0 block
> >
> > Signed-off-by: Nishad Kamdar <nishadkamdar@xxxxxxxxx>
> > ---
> >  drivers/staging/mt7621-mmc/sd.c | 20 --------------------
> >  1 file changed, 20 deletions(-)
> >
> > diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c
> > index 7b66f9b0a094..3d918e481bd8 100644
> > --- a/drivers/staging/mt7621-mmc/sd.c
> > +++ b/drivers/staging/mt7621-mmc/sd.c
> > @@ -216,26 +216,6 @@ static void msdc_tasklet_card(struct work_struct *work)
> >  	spin_unlock(&host->lock);
> >  }
> >  
> > -static void msdc_select_clksrc(struct msdc_host *host, unsigned char clksrc)
> > -{
> > -	u32 val;
> > -
> > -	BUG_ON(clksrc > 3);
> > -
> > -	val = readl(host->base + MSDC_CLKSRC_REG);
> > -	if (readl(host->base + MSDC_ECO_VER) >= 4) {
> > -		val &= ~(0x3  << clk_src_bit[host->id]);
> > -		val |= clksrc << clk_src_bit[host->id];
> > -	} else {
> > -		val &= ~0x3; val |= clksrc;
> > -	}
> > -	writel(val, host->base + MSDC_CLKSRC_REG);
> > -
> > -	host->hclk = hclks[clksrc];
> > -	host->hw->clk_src = clksrc;
> > -}
> > -#endif /* end of --- */
> > -
> >  static void msdc_set_mclk(struct msdc_host *host, int ddr, unsigned int hz)
> >  {
> >  	//struct msdc_hw *hw = host->hw;
> > -- 
> > 2.17.1


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