* Re: [KJ] [PATCH] Removed unreachable code and fixed one compiler
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
@ 2006-08-28 16:59 ` Benoit Boissinot
2006-08-28 17:26 ` Nishanth Aravamudan
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Benoit Boissinot @ 2006-08-28 16:59 UTC (permalink / raw)
To: kernel-janitors
On 8/28/06, ville palo <ville.palo@vi64pa.net> wrote:
> There were some unreachable code segments in drivers/cdrom.
> This patch removes them and fixes one compiler warning:
> "gscd.c:269: warning: unsigned int format, long unsigned int arg"
>
> Patch is made against 2.6.18-rc5
>
> @@ -1710,11 +1707,7 @@ static int mcdx_tray_move(struct cdrom_d
> if (!(stuffp->present & DOOR))
> return -ENOSYS;
>
> - if (position) /* 1: eject */
> - return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
> - else /* 0: close */
> - return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
> - return 1;
> + return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
> }
>
You are removing the comments here, and it is useful information to
understand the code.
regards,
Benoit
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [KJ] [PATCH] Removed unreachable code and fixed one compiler
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
2006-08-28 16:59 ` [KJ] [PATCH] Removed unreachable code and fixed one compiler Benoit Boissinot
@ 2006-08-28 17:26 ` Nishanth Aravamudan
2006-08-28 17:26 ` [KJ] [PATCH] Removed unreachable code and fixed one ville palo
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Nishanth Aravamudan @ 2006-08-28 17:26 UTC (permalink / raw)
To: kernel-janitors
On 28.08.2006 [19:57:31 +0300], ville palo wrote:
>
>
> There were some unreachable code segments in drivers/cdrom.
> This patch removes them and fixes one compiler warning:
> "gscd.c:269: warning: unsigned int format, long unsigned int arg"
Should be separate patches then. Please read tpp
(http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt) and
Documentation/SubmittingPatches if you haven't already (reread them, if
you have).
> Patch is made against 2.6.18-rc5
Not necessary in general.
> Signed-off-by Ville Palo <ville.palo@vi64pa.net>
Canonical form requires the colon, please
Signed-off-by: Random J Developer <random@developer.example.org>
> index fa70824..03884df 100644
> --- a/drivers/cdrom/gscd.c
> +++ b/drivers/cdrom/gscd.c
> @@ -266,7 +266,7 @@ repeat:
> goto out;
>
> if (req->cmd != READ) {
> - printk("GSCD: bad cmd %u\n", rq_data_dir(req));
> + printk("GSCD: bad cmd %lu\n", rq_data_dir(req));
> end_request(req, 0);
> goto repeat;
> }
Just to be clear, this should be a separate patch.
> @@ -578,15 +577,13 @@ static void cmd_out(int cmd_type, char *
> (respo_buf,
> respo_count,
> CD_FRAMESIZE);
> - return;
> }
> } else {
> /* read the info to the buffer */
> cmd_info_in(respo_buf,
> respo_count);
> - return;
> }
> -
> +
Whitespace insertion?
> return;
> }
> }
> diff --git a/drivers/cdrom/isp16.c b/drivers/cdrom/isp16.c
> index db0fd9a..3c1b493 100644
> --- a/drivers/cdrom/isp16.c
> +++ b/drivers/cdrom/isp16.c
> @@ -318,7 +318,6 @@ isp16_cdi_config(int base, u_char drive_
> printk("ISP16: dma 1 cannot be used by cdrom interface,"
> " due to conflict with the sound card.\n");
> return -1;
> - break;
> case 3:
> dma_code = ISP16_DMA_3;
> break;
> diff --git a/drivers/cdrom/mcdx.c b/drivers/cdrom/mcdx.c
> index dcd1ab6..b0ab77b 100644
> --- a/drivers/cdrom/mcdx.c
> +++ b/drivers/cdrom/mcdx.c
> @@ -622,9 +622,6 @@ static void do_mcdx_request(request_queu
> }
> end_request(req, 1);
> goto again;
> -
> - xtrace(REQUEST, "end_request(1)\n");
> - end_request(req, 1);
Perhapse move the xtrace (which is presumably useful) to before the
goto?
> }
>
> goto again;
> @@ -1710,11 +1707,7 @@ static int mcdx_tray_move(struct cdrom_d
> if (!(stuffp->present & DOOR))
> return -ENOSYS;
>
> - if (position) /* 1: eject */
> - return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
> - else /* 0: close */
> - return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
> - return 1;
> + return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
As mentioned elsewhere the comments are useful. This also doesn't seem
to fit into either category of your description and thus should have
been in a different patch (Have you (re)read tpp or SubmittingPatches yet?).
Thanks,
Nish
--
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [KJ] [PATCH] Removed unreachable code and fixed one
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
2006-08-28 16:59 ` [KJ] [PATCH] Removed unreachable code and fixed one compiler Benoit Boissinot
2006-08-28 17:26 ` Nishanth Aravamudan
@ 2006-08-28 17:26 ` ville palo
2006-08-28 17:49 ` ville palo
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ville palo @ 2006-08-28 17:26 UTC (permalink / raw)
To: kernel-janitors
On Mon, 2006-08-28 at 18:59 +0200, Benoit Boissinot wrote:
> You are removing the comments here, and it is useful information to
> understand the code.
>
Yes, you are right, here's the fixed patch:
Signed-off-by: Ville Palo <ville.palo@vi64pa.net>
diff --git a/drivers/cdrom/gscd.c b/drivers/cdrom/gscd.c
index fa70824..03884df 100644
--- a/drivers/cdrom/gscd.c
+++ b/drivers/cdrom/gscd.c
@@ -266,7 +266,7 @@ repeat:
goto out;
if (req->cmd != READ) {
- printk("GSCD: bad cmd %u\n", rq_data_dir(req));
+ printk("GSCD: bad cmd %lu\n", rq_data_dir(req));
end_request(req, 0);
goto repeat;
}
@@ -569,7 +569,6 @@ static void cmd_out(int cmd_type, char *
respo_count,
CD_FRAMESIZE /
2);
- return;
} else {
/* read the data to the buffer (byte) */
@@ -578,15 +577,13 @@ static void cmd_out(int cmd_type, char *
(respo_buf,
respo_count,
CD_FRAMESIZE);
- return;
}
} else {
/* read the info to the buffer */
cmd_info_in(respo_buf,
respo_count);
- return;
}
-
+
return;
}
}
diff --git a/drivers/cdrom/isp16.c b/drivers/cdrom/isp16.c
index db0fd9a..3c1b493 100644
--- a/drivers/cdrom/isp16.c
+++ b/drivers/cdrom/isp16.c
@@ -318,7 +318,6 @@ isp16_cdi_config(int base, u_char drive_
printk("ISP16: dma 1 cannot be used by cdrom interface,"
" due to conflict with the sound card.\n");
return -1;
- break;
case 3:
dma_code = ISP16_DMA_3;
break;
diff --git a/drivers/cdrom/mcdx.c b/drivers/cdrom/mcdx.c
index dcd1ab6..bcff5a8 100644
--- a/drivers/cdrom/mcdx.c
+++ b/drivers/cdrom/mcdx.c
@@ -622,9 +622,6 @@ static void do_mcdx_request(request_queu
}
end_request(req, 1);
goto again;
-
- xtrace(REQUEST, "end_request(1)\n");
- end_request(req, 1);
}
goto again;
@@ -1710,11 +1707,8 @@ static int mcdx_tray_move(struct cdrom_d
if (!(stuffp->present & DOOR))
return -ENOSYS;
- if (position) /* 1: eject */
- return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
- else /* 0: close */
- return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
- return 1;
+ /* If position is 1 then eject, otherwise close */
+ return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
}
static int mcdx_stop(struct s_drive_stuff *stuffp, int tries)
diff --git a/drivers/cdrom/sonycd535.c b/drivers/cdrom/sonycd535.c
index 30ab562..65bdd64 100644
--- a/drivers/cdrom/sonycd535.c
+++ b/drivers/cdrom/sonycd535.c
@@ -1028,7 +1028,6 @@ sony_get_subchnl_info(void __user *arg)
if (copy_to_user(arg, &schi, sizeof schi))
return -EFAULT;
return 0;
- break;
case CDROM_AUDIO_INVALID:
case CDROM_AUDIO_ERROR:
@@ -1083,7 +1082,6 @@ cdu_ioctl(struct inode *inode,
return -EIO;
}
return 0;
- break;
case CDROMSTOP: /* Spin down the drive */
cmd_buff[0] = SONY535_HOLD;
@@ -1103,7 +1101,6 @@ cdu_ioctl(struct inode *inode,
return -EIO;
}
return 0;
- break;
case CDROMPAUSE: /* Pause the drive */
cmd_buff[0] = SONY535_HOLD; /* CDU-31 driver uses AUDIO_STOP, not pause */
@@ -1121,7 +1118,6 @@ cdu_ioctl(struct inode *inode,
cur_pos_msf[2] = last_sony_subcode->abs_msf[2];
sony_audio_status = CDROM_AUDIO_PAUSED;
return 0;
- break;
case CDROMRESUME: /* Start the drive after being paused */
set_drive_mode(SONY535_AUDIO_DRIVE_MODE, status);
@@ -1150,7 +1146,6 @@ cdu_ioctl(struct inode *inode,
}
sony_audio_status = CDROM_AUDIO_PLAY;
return 0;
- break;
case CDROMPLAYMSF: /* Play starting at the given MSF address. */
if (copy_from_user(params, argp, 6))
@@ -1181,7 +1176,6 @@ cdu_ioctl(struct inode *inode,
final_pos_msf[2] = cmd_buff[9];
sony_audio_status = CDROM_AUDIO_PLAY;
return 0;
- break;
case CDROMREADTOCHDR: /* Read the table of contents header */
{
@@ -1197,7 +1191,6 @@ cdu_ioctl(struct inode *inode,
return -EFAULT;
}
return 0;
- break;
case CDROMREADTOCENTRY: /* Read a given table of contents entry */
{
@@ -1240,7 +1233,6 @@ cdu_ioctl(struct inode *inode,
return -EFAULT;
}
return 0;
- break;
case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
{
@@ -1346,7 +1338,6 @@ cdu_ioctl(struct inode *inode,
return -EIO;
}
return 0;
- break;
default:
return -EINVAL;
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^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [KJ] [PATCH] Removed unreachable code and fixed one
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
` (2 preceding siblings ...)
2006-08-28 17:26 ` [KJ] [PATCH] Removed unreachable code and fixed one ville palo
@ 2006-08-28 17:49 ` ville palo
2006-08-28 17:51 ` [KJ] [PATCH] Removed unreachable code and fixed one compiler Nishanth Aravamudan
2006-08-28 18:00 ` Richard Knutsson
5 siblings, 0 replies; 7+ messages in thread
From: ville palo @ 2006-08-28 17:49 UTC (permalink / raw)
To: kernel-janitors
On Mon, 2006-08-28 at 10:26 -0700, Nishanth Aravamudan wrote:
> On 28.08.2006 [19:57:31 +0300], ville palo wrote:
> >
> >
> > There were some unreachable code segments in drivers/cdrom.
> > This patch removes them and fixes one compiler warning:
> > "gscd.c:269: warning: unsigned int format, long unsigned int arg"
>
> Should be separate patches then. Please read tpp
> (http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt) and
> Documentation/SubmittingPatches if you haven't already (reread them, if
> you have).
Ok, I'll reread them :)
> Perhapse move the xtrace (which is presumably useful) to before the
> goto?
>
> > }
> >
> > goto again;
> > @@ -1710,11 +1707,7 @@ static int mcdx_tray_move(struct cdrom_d
> > if (!(stuffp->present & DOOR))
> > return -ENOSYS;
> >
> > - if (position) /* 1: eject */
> > - return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
> > - else /* 0: close */
> > - return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
> > - return 1;
> > + return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
>
> As mentioned elsewhere the comments are useful. This also doesn't seem
> to fit into either category of your description and thus should have
> been in a different patch (Have you (re)read tpp or SubmittingPatches yet?).
I already fixed the comments part but I have to disagree about the
description part. IMHO this fits in "removed unreachable code" category,
because 'return 1;' was unreachable.
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [KJ] [PATCH] Removed unreachable code and fixed one compiler
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
` (3 preceding siblings ...)
2006-08-28 17:49 ` ville palo
@ 2006-08-28 17:51 ` Nishanth Aravamudan
2006-08-28 18:00 ` Richard Knutsson
5 siblings, 0 replies; 7+ messages in thread
From: Nishanth Aravamudan @ 2006-08-28 17:51 UTC (permalink / raw)
To: kernel-janitors
On 28.08.2006 [20:49:58 +0300], ville palo wrote:
> On Mon, 2006-08-28 at 10:26 -0700, Nishanth Aravamudan wrote:
> > On 28.08.2006 [19:57:31 +0300], ville palo wrote:
> > >
> > >
> > > There were some unreachable code segments in drivers/cdrom.
> > > This patch removes them and fixes one compiler warning:
> > > "gscd.c:269: warning: unsigned int format, long unsigned int arg"
> >
> > Should be separate patches then. Please read tpp
> > (http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt) and
> > Documentation/SubmittingPatches if you haven't already (reread them, if
> > you have).
>
> Ok, I'll reread them :)
>
> > Perhapse move the xtrace (which is presumably useful) to before the
> > goto?
> >
> > > }
> > >
> > > goto again;
> > > @@ -1710,11 +1707,7 @@ static int mcdx_tray_move(struct cdrom_d
> > > if (!(stuffp->present & DOOR))
> > > return -ENOSYS;
> > >
> > > - if (position) /* 1: eject */
> > > - return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
> > > - else /* 0: close */
> > > - return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
> > > - return 1;
> > > + return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
> >
> > As mentioned elsewhere the comments are useful. This also doesn't seem
> > to fit into either category of your description and thus should have
> > been in a different patch (Have you (re)read tpp or SubmittingPatches yet?).
>
> I already fixed the comments part but I have to disagree about the
> description part. IMHO this fits in "removed unreachable code"
> category, because 'return 1;' was unreachable.
Only the return 1; removal does. The other is code rearrangement, and
is a distinct (and unnecessary) logical change.
Thanks,
Nish
--
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [KJ] [PATCH] Removed unreachable code and fixed one compiler
2006-08-28 16:57 [KJ] [PATCH] Removed unreachable code and fixed one compiler warning ville palo
` (4 preceding siblings ...)
2006-08-28 17:51 ` [KJ] [PATCH] Removed unreachable code and fixed one compiler Nishanth Aravamudan
@ 2006-08-28 18:00 ` Richard Knutsson
5 siblings, 0 replies; 7+ messages in thread
From: Richard Knutsson @ 2006-08-28 18:00 UTC (permalink / raw)
To: kernel-janitors
ville palo wrote:
>On Mon, 2006-08-28 at 18:59 +0200, Benoit Boissinot wrote:
>
>
>>You are removing the comments here, and it is useful information to
>>understand the code.
>>
>>
>>
>
>Yes, you are right, here's the fixed patch:
>
>
>Signed-off-by: Ville Palo <ville.palo@vi64pa.net>
>
>
>
<slice>
> goto again;
>@@ -1710,11 +1707,8 @@ static int mcdx_tray_move(struct cdrom_d
> if (!(stuffp->present & DOOR))
> return -ENOSYS;
>
>- if (position) /* 1: eject */
>- return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3);
>- else /* 0: close */
>- return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3);
>- return 1;
>+ /* If position is 1 then eject, otherwise close */
>+ return mcdx_talk(stuffp, position ? "\xf6" : "\xf8", 1, NULL, 1, 5 * HZ, 3);
> }
>
>
Not to be picky, but isn't it: "If position is 0 then close, otherwise
eject"? ;)
Richard Knutsson
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^ permalink raw reply [flat|nested] 7+ messages in thread