staging: Fix multiple issues

PATCH In review Amitoj Kaur Chawla 3 participants 10 messages Oct 18, 2015 – Oct 26, 2015

Subsystems (2)

Staging Staging - silicon motion SM750 frame buffer driver

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Amitoj Kaur Chawla

author

2015-10-18 15:54 UTC #0 lore raw

cover staging: Fix multiple issues

This patchset fixes multiple issues found using checkpatch.pl

Amitoj Kaur Chawla (3):
staging: sm750fb: Replace uint32_t with u32
staging: sm750fb: Remove volatile modifier
staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 drivers/staging/sm750fb/ddk750_power.c              | 8 ++++----
 drivers/staging/sm750fb/sm750.h                     | 6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)

Signature · 1 line

1.9.1

Amitoj Kaur Chawla

author

2015-10-18 15:58 UTC #1 lore raw

PATCH 1/3 staging: sm750fb: Replace uint32_t with u32

Replace uint32_t with u32 consistent with Linux kernel coding practice.
Problem found using checkpatch.pl

Signed-off-by Amitoj Kaur Chawla <[email protected]>

---
 drivers/staging/sm750fb/ddk750_power.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

drivers/staging/sm750fb/ddk750_power.c +4 -4

index 198ff81..667e4f8 100644
@@ -108,7 +108,7 @@ void setCurrentGate(unsigned int gate)
  */
 void enable2DEngine(unsigned int enable)
 {
-	uint32_t gate;
+	u32 gate;
 
 	gate = PEEK32(CURRENT_GATE);
 	if (enable) {

@@ -124,7 +124,7 @@ void enable2DEngine(unsigned int enable)
 
 void enableDMA(unsigned int enable)
 {
-	uint32_t gate;
+	u32 gate;
 
 	/* Enable DMA Gate */
 	gate = PEEK32(CURRENT_GATE);

@@ -141,7 +141,7 @@ void enableDMA(unsigned int enable)
  */
 void enableGPIO(unsigned int enable)
 {
-	uint32_t gate;
+	u32 gate;
 
 	/* Enable GPIO Gate */
 	gate = PEEK32(CURRENT_GATE);

@@ -158,7 +158,7 @@ void enableGPIO(unsigned int enable)
  */
 void enableI2C(unsigned int enable)
 {
-	uint32_t gate;
+	u32 gate;
 
 	/* Enable I2C Gate */
 	gate = PEEK32(CURRENT_GATE);

Signature · 1 line

1.9.1

Amitoj Kaur Chawla

author

2015-10-18 16:00 UTC #2 lore raw

PATCH 2/3 staging: sm750fb: Remove volatile modifier

In reply to Amitoj Kaur Chawla

'volatile' is not needed for regular variable. Problem found using checkpatch.pl
WARNING: Use of volatile is usually wrong: see Documentation/volatile-considered -harmful.txt

Signed-off-by Amitoj Kaur Chawla <[email protected]>

---
 drivers/staging/sm750fb/sm750.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

drivers/staging/sm750fb/sm750.h +3 -3

index 52fe945..68eef34 100644
@@ -15,9 +15,9 @@ extern int smi_indent;
 
 struct lynx_accel {
 	/* base virtual address of DPR registers */
-	volatile unsigned char __iomem *dprBase;
+	unsigned char __iomem *dprBase;
 	/* base virtual address of de data port */
-	volatile unsigned char __iomem *dpPortBase;
+	unsigned char __iomem *dpPortBase;
 
 	/* function fointers */
 	void (*de_init)(struct lynx_accel *);

@@ -79,7 +79,7 @@ struct lynx_cursor {
 	char __iomem *vstart;
 	int offset;
 	/* mmio addr of hw cursor */
-	volatile char __iomem *mmio;
+	char __iomem *mmio;
 	/* the lynx_share of this adaptor */
 	struct lynx_share *share;
 	/* proc_routines */

Signature · 1 line

1.9.1

Amitoj Kaur Chawla

author

2015-10-18 16:03 UTC #4 lore raw

PATCH 3/3 staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

In reply to Amitoj Kaur Chawla

Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf

Signed-off-by Amitoj Kaur Chawla <[email protected]>

---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1

index 6cf9b92..23f1e26 100644
@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
 			   (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
 			   (long)(req->rq_sent - req->rq_deadline));
 		if (svc->srv_ops.so_req_printer == NULL)
-			seq_printf(s, "\n");
+			seq_puts(s, "\n");
 		else
 			svc->srv_ops.so_req_printer(s, srhi->srhi_req);
 	}

Signature · 1 line

1.9.1

Greg KH

maintainer

2015-10-25 08:26 UTC #5 lore raw

Re: [Outreachy kernel] [PATCH 3/3] staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

Quoted 14 lines · Amitoj Kaur Chawla

Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf
Signed-off-by Amitoj Kaur Chawla <[email protected]>
---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +0 -0
index 6cf9b92..23f1e26 100644

drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter) · line 926

Quoted 5 lines

drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1

@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
 			   (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
 			   (long)(req->rq_sent - req->rq_deadline));
 		if (svc->srv_ops.so_req_printer == NULL)
-			seq_printf(s, "\n");
+			seq_puts(s, "\n");

Shouldn't this really be seq_putc() instead?

thanks,

greg k-h

Greg KH

maintainer

2015-10-25 08:29 UTC #3 lore raw

Re: [Outreachy kernel] [PATCH 2/3] staging: sm750fb: Remove volatile modifier

In reply to Amitoj Kaur Chawla

Quoted 25 lines · Amitoj Kaur Chawla

'volatile' is not needed for regular variable. Problem found using checkpatch.pl
WARNING: Use of volatile is usually wrong: see Documentation/volatile-considered -harmful.txt

Signed-off-by Amitoj Kaur Chawla <[email protected]>

---
 drivers/staging/sm750fb/sm750.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

drivers/staging/sm750fb/sm750.h +2 -2

index 52fe945..68eef34 100644
@@ -15,9 +15,9 @@ extern int smi_indent;
 
 struct lynx_accel {
 	/* base virtual address of DPR registers */
-	volatile unsigned char __iomem *dprBase;
+	unsigned char __iomem *dprBase;
 	/* base virtual address of de data port */
-	volatile unsigned char __iomem *dpPortBase;
+	unsigned char __iomem *dpPortBase;
 
 	/* function fointers */
 	void (*de_init)(struct lynx_accel *);

drivers/staging/sm750fb/sm750.h struct lynx_cursor { · line 82

Quoted 5 lines

drivers/staging/sm750fb/sm750.h +1 -1

@@ -79,7 +79,7 @@ struct lynx_cursor {
 	char __iomem *vstart;
 	int offset;
 	/* mmio addr of hw cursor */
-	volatile char __iomem *mmio;
+	char __iomem *mmio;

Have you verified that the code is still working properly? Sometimes this isn't as simple as just deleting the modifier :(

thanks,

greg k-h

Amitoj Kaur Chawla

author

2015-10-25 14:30 UTC #6 lore raw

Re: [Outreachy kernel] [PATCH 3/3] staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

In reply to Greg KH

Quoted 23 lines · Greg KH

Quoted 14 lines · Amitoj Kaur Chawla
Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf
Signed-off-by Amitoj Kaur Chawla <[email protected]>
---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +0 -0
index 6cf9b92..23f1e26 100644
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter) · line 926
Quoted 5 lines
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1
@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
                         (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
                         (long)(req->rq_sent - req->rq_deadline));
              if (svc->srv_ops.so_req_printer == NULL)
-                     seq_printf(s, "\n");
+                     seq_puts(s, "\n");
Shouldn't this really be seq_putc() instead?

Quoted 3 lines

thanks,
greg k-h

's' is not of char type but char *
I build tested this and sent. After your question I had doubts again so I tried seq_putc() but it breaks the build.

Signature · 1 line

Amitoj

Julia Lawall

2015-10-25 14:31 UTC #7 lore raw

Re: [Outreachy kernel] [PATCH 3/3] staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

Quoted 24 lines · Amitoj Kaur Chawla

Quoted 23 lines · Greg KH
Quoted 14 lines · Amitoj Kaur Chawla
Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf
Signed-off-by Amitoj Kaur Chawla <[email protected]>
---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +0 -0
index 6cf9b92..23f1e26 100644
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter) · line 926
Quoted 5 lines
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1
@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
                         (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
                         (long)(req->rq_sent - req->rq_deadline));
              if (svc->srv_ops.so_req_printer == NULL)
-                     seq_printf(s, "\n");
+                     seq_puts(s, "\n");
Shouldn't this really be seq_putc() instead?

Quoted 7 lines

Quoted 3 lines
thanks,
greg k-h
's' is not of char type but char *
I build tested this and sent. After your question I had doubts again so I tried seq_putc() but it breaks the build.

"\n" could be '\n'.

julia

Quoted 11 lines

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Amitoj Kaur Chawla

author

2015-10-26 16:40 UTC #8 lore raw

Re: [Outreachy kernel] [PATCH 3/3] staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

Quoted 30 lines · Julia Lawall

Quoted 28 lines · Amitoj Kaur Chawla
Quoted 26 lines · Greg KH
Quoted 14 lines · Amitoj Kaur Chawla
Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf
Signed-off-by Amitoj Kaur Chawla <[email protected]>
---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +0 -0
index 6cf9b92..23f1e26 100644
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter) · line 926
Quoted 5 lines
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1
@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
                         (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
                         (long)(req->rq_sent - req->rq_deadline));
              if (svc->srv_ops.so_req_printer == NULL)
-                     seq_printf(s, "\n");
+                     seq_puts(s, "\n");
Shouldn't this really be seq_putc() instead?
thanks,
greg k-h

Quoted 8 lines

Quoted 3 lines
's' is not of char type but char *
I build tested this and sent. After your question I had doubts again so I tried seq_putc() but it breaks the build.
"\n" could be '\n'.
julia

So I should write it as seq_puts(s, '\n');?
Should I resend this?

Signature · 1 line

Amitoj

Julia Lawall

2015-10-26 16:47 UTC #9 lore raw

Re: [Outreachy kernel] [PATCH 3/3] staging: lustre: ptlrpc: Replace seq_printf() with seq_puts()

Quoted 35 lines · Amitoj Kaur Chawla

Quoted 34 lines · Julia Lawall
Quoted 31 lines · Amitoj Kaur Chawla
Quoted 23 lines · Greg KH
Quoted 14 lines · Amitoj Kaur Chawla
Replace seq_printf() with seq_puts() since it is more expensive than seq_puts(). Problem found using checkpatch.pl
WARNING: Prefer seq_puts to seq_printf
Signed-off-by Amitoj Kaur Chawla <[email protected]>
---
 drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +0 -0
index 6cf9b92..23f1e26 100644
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter) · line 926
Quoted 5 lines
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +1 -1
@@ -923,7 +923,7 @@ static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
                         (long)(req->rq_sent - req->rq_arrival_time.tv_sec),
                         (long)(req->rq_sent - req->rq_deadline));
              if (svc->srv_ops.so_req_printer == NULL)
-                     seq_printf(s, "\n");
+                     seq_puts(s, "\n");
Shouldn't this really be seq_putc() instead?
Quoted 3 lines
thanks,
greg k-h
's' is not of char type but char *
I build tested this and sent. After your question I had doubts again so I tried seq_putc() but it breaks the build.

Quoted 6 lines

Quoted 4 lines
"\n" could be '\n'.
julia
So I should write it as seq_puts(s, '\n');?

You should use seq_putc.

Quoted 1 line

Should I resend this?

Yes.

julia