[PATCH 0/2] OMAP: TWL: sparse fixes

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Revision v1 of 4 in this series.

8 messages, 2 authors, 2011-01-05 · open the first message on its own page

[PATCH 0/2] OMAP: TWL: sparse fixes

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-03 18:58:28

Source:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
branch: omap-for-linus

Doing a rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/
resulted in the following sparse warnings:
http://pastebin.mozilla.org/907954

This series fixes the twl warnings
Nishanth Menon (2):
  OMAP2+: TWL: make conversion routines static
  OMAP2+: TWL: include pm header for init protos

 arch/arm/mach-omap2/omap_twl.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

Regards,
Nishanth Menon

[PATCH 1/2] OMAP2+: TWL: make conversion routines static

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-03 18:58:29

The uv_to_vsel, vsel_to_uv functions don't need to be exposed to the
world as they are used as function pointers. make them static.

Fixes sparse warnings:
arch/arm/mach-omap2/omap_twl.c:63:15: warning: symbol 'twl4030_vsel_to_uv' was not declared. Should it be static?
arch/arm/mach-omap2/omap_twl.c:68:4: warning: symbol 'twl4030_uv_to_vsel' was not declared. Should it be static?
arch/arm/mach-omap2/omap_twl.c:73:15: warning: symbol 'twl6030_vsel_to_uv' was not declared. Should it be static?
arch/arm/mach-omap2/omap_twl.c:105:4: warning: symbol 'twl6030_uv_to_vsel' was not declared. Should it be static?

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/mach-omap2/omap_twl.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 15f8c6c..65ab4e3 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -60,17 +60,17 @@ static u8 smps_offset;
 
 #define REG_SMPS_OFFSET         0xE0
 
-unsigned long twl4030_vsel_to_uv(const u8 vsel)
+static unsigned long twl4030_vsel_to_uv(const u8 vsel)
 {
 	return (((vsel * 125) + 6000)) * 100;
 }
 
-u8 twl4030_uv_to_vsel(unsigned long uv)
+static u8 twl4030_uv_to_vsel(unsigned long uv)
 {
 	return DIV_ROUND_UP(uv - 600000, 12500);
 }
 
-unsigned long twl6030_vsel_to_uv(const u8 vsel)
+static unsigned long twl6030_vsel_to_uv(const u8 vsel)
 {
 	/*
 	 * In TWL6030 depending on the value of SMPS_OFFSET
@@ -102,7 +102,7 @@ unsigned long twl6030_vsel_to_uv(const u8 vsel)
 		return ((((vsel - 1) * 125) + 6000)) * 100;
 }
 
-u8 twl6030_uv_to_vsel(unsigned long uv)
+static u8 twl6030_uv_to_vsel(unsigned long uv)
 {
 	/*
 	 * In TWL6030 depending on the value of SMPS_OFFSET
-- 
1.6.3.3

[PATCH 2/2] OMAP2+: TWL: include pm header for init protos

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-03 18:58:30

twl_init functions are declared in pm.h and used in pm.c
pm.h header defining the protos need to be included to
ensure that omap_twl.c has consistent function definition.
This fixes sparse warning:
arch/arm/mach-omap2/omap_twl.c:237:12: warning: symbol 'omap4_twl_init' was not declared. Should it be static?
arch/arm/mach-omap2/omap_twl.c:256:12: warning: symbol 'omap3_twl_init' was not declared. Should it be static?

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/mach-omap2/omap_twl.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 65ab4e3..00e1d2b 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -20,6 +20,8 @@
 
 #include <plat/voltage.h>
 
+#include "pm.h"
+
 #define OMAP3_SRI2C_SLAVE_ADDR		0x12
 #define OMAP3_VDD_MPU_SR_CONTROL_REG	0x00
 #define OMAP3_VDD_CORE_SR_CONTROL_REG	0x01
-- 
1.6.3.3

[PATCH 0/2] OMAP: TWL: sparse fixes

From: Russell King - ARM Linux <hidden>
Date: 2011-01-03 22:36:56

On Mon, Jan 03, 2011 at 12:58:28PM -0600, Nishanth Menon wrote:
Source:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
branch: omap-for-linus

Doing a rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/
resulted in the following sparse warnings:
http://pastebin.mozilla.org/907954
FYI, you may like to try:

make C=2 arch/arm/mach-omap2/

instead of the two-step process:
| Do a kernel make with "make C=1" to run sparse on all the C files that get
| recompiled, or use "make C=2" to run sparse on the files whether they need to
| be recompiled or not.  The latter is a fast way to check the whole tree if you
| have already built it.

[PATCH 0/2] OMAP: TWL: sparse fixes

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-03 22:39:59

Russell King - ARM Linux had written, on 01/03/2011 04:36 PM, the following:
On Mon, Jan 03, 2011 at 12:58:28PM -0600, Nishanth Menon wrote:
quoted
Source:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
branch: omap-for-linus

Doing a rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/
resulted in the following sparse warnings:
http://pastebin.mozilla.org/907954
FYI, you may like to try:

make C=2 arch/arm/mach-omap2/

instead of the two-step process:
| Do a kernel make with "make C=1" to run sparse on all the C files that get
| recompiled, or use "make C=2" to run sparse on the files whether they need to
| be recompiled or not.  The latter is a fast way to check the whole tree if you
| have already built it.
Gee thanks. /me should update my old bash aliases :D

-- 
Regards,
Nishanth Menon

[PATCH 0/2] OMAP: TWL: sparse fixes

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-04 20:37:23

Nishanth Menon had written, on 01/03/2011 04:39 PM, the following:
Russell King - ARM Linux had written, on 01/03/2011 04:36 PM, the 
following:
quoted
On Mon, Jan 03, 2011 at 12:58:28PM -0600, Nishanth Menon wrote:
quoted
Source:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
branch: omap-for-linus

Doing a rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/
resulted in the following sparse warnings:
http://pastebin.mozilla.org/907954
FYI, you may like to try:

make C=2 arch/arm/mach-omap2/

instead of the two-step process:
| Do a kernel make with "make C=1" to run sparse on all the C files 
that get
| recompiled, or use "make C=2" to run sparse on the files whether 
they need to
| be recompiled or not.  The latter is a fast way to check the whole 
tree if you
| have already built it.
Gee thanks. /me should update my old bash aliases :D
hmm.. minor nit (with codesourcery 2010.09-50 - 4.5.1):
rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/ 2>Kerr;make C=2 
arch/arm/mach-omap2/ 2>Kerr1;diff Kerr Kerr1
[..]
1,4d0
< arch/arm/mach-omap2/mux.c: In function 'omap_mux_get_by_name':
< arch/arm/mach-omap2/mux.c:163:17: warning: 'found_mode' may be used 
uninitialized in this function
< arch/arm/mach-omap2/clkt_clksel.c: In function 'omap2_clksel_set_parent':
< arch/arm/mach-omap2/clkt_clksel.c:100:35: warning: 'max_clkr' may be 
used uninitialized in this function

Kinda interesting to note that C=2 does'nt list all potential gcc 
warnings :( if one wanted a collated list of all warnings, rm .../*.o 
helps I guess.

-- 
Regards,
Nishanth Menon

[PATCH 0/2] OMAP: TWL: sparse fixes

From: Russell King - ARM Linux <hidden>
Date: 2011-01-05 00:25:49

On Tue, Jan 04, 2011 at 02:37:23PM -0600, Nishanth Menon wrote:
hmm.. minor nit (with codesourcery 2010.09-50 - 4.5.1):
rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/ 2>Kerr;make C=2  
arch/arm/mach-omap2/ 2>Kerr1;diff Kerr Kerr1
[..]
1,4d0
< arch/arm/mach-omap2/mux.c: In function 'omap_mux_get_by_name':
< arch/arm/mach-omap2/mux.c:163:17: warning: 'found_mode' may be used  
uninitialized in this function
< arch/arm/mach-omap2/clkt_clksel.c: In function 'omap2_clksel_set_parent':
< arch/arm/mach-omap2/clkt_clksel.c:100:35: warning: 'max_clkr' may be  
used uninitialized in this function

Kinda interesting to note that C=2 does'nt list all potential gcc  
warnings :( if one wanted a collated list of all warnings, rm .../*.o  
helps I guess.
C=2 only runs sparse - so if you're committing patches to fix sparse
warnings, that's what you should be interested in.

I'd suggest that fixing sparse warnings and GCC warnings in a single
patch is probably not the best thing to do - GCC warnings are less
subjective than sparse warnings.

[PATCH 0/2] OMAP: TWL: sparse fixes

From: nm@ti.com (Nishanth Menon)
Date: 2011-01-05 13:32:58

Russell King - ARM Linux wrote, on 01/04/2011 06:25 PM:
On Tue, Jan 04, 2011 at 02:37:23PM -0600, Nishanth Menon wrote:
quoted
hmm.. minor nit (with codesourcery 2010.09-50 - 4.5.1):
rm arch/arm/mach-omap2/*.o;make C=1 arch/arm/mach-omap2/ 2>Kerr;make C=2
arch/arm/mach-omap2/ 2>Kerr1;diff Kerr Kerr1
[..]
1,4d0
<  arch/arm/mach-omap2/mux.c: In function 'omap_mux_get_by_name':
<  arch/arm/mach-omap2/mux.c:163:17: warning: 'found_mode' may be used
uninitialized in this function
<  arch/arm/mach-omap2/clkt_clksel.c: In function 'omap2_clksel_set_parent':
<  arch/arm/mach-omap2/clkt_clksel.c:100:35: warning: 'max_clkr' may be
used uninitialized in this function

Kinda interesting to note that C=2 does'nt list all potential gcc
warnings :( if one wanted a collated list of all warnings, rm .../*.o
helps I guess.
C=2 only runs sparse - so if you're committing patches to fix sparse
warnings, that's what you should be interested in.

I'd suggest that fixing sparse warnings and GCC warnings in a single
patch is probably not the best thing to do - GCC warnings are less
subjective than sparse warnings.
I agree.

-- 
Regards,
Nishanth Menon
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