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Groups > linux.kernel > #1468420 > unrolled thread

[PATCH resend] staging:xgifb:remove unused code

Started byDing Xiang <dingxiang@huawei.com>
First post2016-08-23 11:20 +0200
Last post2016-08-23 12:30 +0200
Articles 3 — 3 participants

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  [PATCH resend] staging:xgifb:remove unused code Ding Xiang <dingxiang@huawei.com> - 2016-08-23 11:20 +0200
    Re: [PATCH resend] staging:xgifb:remove unused code Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-08-23 11:40 +0200
    Re: [PATCH resend] staging:xgifb:remove unused code Greg KH <gregkh@linuxfoundation.org> - 2016-08-23 12:30 +0200

#1468420 — [PATCH resend] staging:xgifb:remove unused code

FromDing Xiang <dingxiang@huawei.com>
Date2016-08-23 11:20 +0200
Subject[PATCH resend] staging:xgifb:remove unused code
Message-ID<s9g2e-1UK-7@gated-at.bofh.it>
The variable data is assigned but never used in rest code.

Signed-off-by: Ding Xiang <dingxiang@huawei.com>
---
 drivers/staging/xgifb/vb_setmode.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 50c8ea4..71bb9ca 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -727,7 +727,6 @@ static void XGI_SetCRT1DE(unsigned short ModeIdIndex,
 		tempax |= 0x40;
 
 	xgifb_reg_and_or(pVBInfo->P3d4, 0x07, ~0x42, tempax);
-	data = xgifb_reg_get(pVBInfo->P3d4, 0x07);
 	tempax = 0;
 
 	if (tempbx & 0x04)
-- 
1.7.1

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#1468437

FromSudip Mukherjee <sudipm.mukherjee@gmail.com>
Date2016-08-23 11:40 +0200
Message-ID<s9glA-23O-25@gated-at.bofh.it>
In reply to#1468420
On Tue, Aug 23, 2016 at 05:17:30PM +0800, Ding Xiang wrote:
> The variable data is assigned but never used in rest code.
> 
> Signed-off-by: Ding Xiang <dingxiang@huawei.com>
> ---

The subject should have been [Patch v2] not resend.

regards
sudip

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#1468470

FromGreg KH <gregkh@linuxfoundation.org>
Date2016-08-23 12:30 +0200
Message-ID<s9h7X-2zM-1@gated-at.bofh.it>
In reply to#1468420
On Tue, Aug 23, 2016 at 05:17:30PM +0800, Ding Xiang wrote:
> The variable data is assigned but never used in rest code.
> 
> Signed-off-by: Ding Xiang <dingxiang@huawei.com>
> ---
>  drivers/staging/xgifb/vb_setmode.c |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
> index 50c8ea4..71bb9ca 100644
> --- a/drivers/staging/xgifb/vb_setmode.c
> +++ b/drivers/staging/xgifb/vb_setmode.c
> @@ -727,7 +727,6 @@ static void XGI_SetCRT1DE(unsigned short ModeIdIndex,
>  		tempax |= 0x40;
>  
>  	xgifb_reg_and_or(pVBInfo->P3d4, 0x07, ~0x42, tempax);
> -	data = xgifb_reg_get(pVBInfo->P3d4, 0x07);

But this did something with the hardware, are you sure this doesn't
break anything?  Lots of hardware works with the sequence of:
	write something
	read something to make sure the write worked.

Did you test this?

thanks,

greg k-h

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