Re: [PATCH EDACv16 1/2] edac: Change internal representation towork with layers

From: Joe Perches
Date: Sun Apr 29 2012 - 12:43:26 EST


On Sun, 2012-04-29 at 13:20 -0300, Mauro Carvalho Chehab wrote:
> The script below is even better. After that, only 113 occurrences of __func__
> is now found at drivers/edac, and some of them are not related to debugf[1-9],
> so they shouldn't be cover on a patch like that.
> I'll do some manual cleanup on it.

Hi Mauro.

Another thing you could do would be to
separate the level from the multiple macros,
use a single macro, and convert the uses.

#define debugf(level, fmt, ...)
and change the uses to
debugf([0-n], "some format", args...)

I believe that's the more predominate
kernel style for debugging macros with
a tested level or mask.

Perhaps also add !CONFIG_EDAC_DEBUG
format/args checking to the debug statements.

Lastly, indenting the messages 2 tabs isn't
really useful, one or two spaces is probably
enough.

I did this a bit ago so it may not apply
after your changes:

commit 42f8f2d6fad6b62ab1d122c68984f4afd8a243f7
Author: Joe Perches <joe@xxxxxxxxxxx>
Date: Sat Apr 28 12:41:46 2012 -0700

edac: Use more normal debugging macro style

Convert macros to a simpler style and enforce appropriate
format checking when not CONFIG_EDAC_DEBUG.

Use fmt and __VA_ARGS__, neaten macros.

Move some string arrays to the debugfx uses and remove the
now unnecessary CONFIG_EDAC_DEBUG variable block definitions.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>

diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index e48ab31..6198181 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -71,29 +71,30 @@ extern const char *edac_mem_types[];
#ifdef CONFIG_EDAC_DEBUG
extern int edac_debug_level;

-#define edac_debug_printk(level, fmt, arg...) \
- do { \
- if (level <= edac_debug_level) \
- edac_printk(KERN_DEBUG, EDAC_DEBUG, \
- "%s: " fmt, __func__, ##arg); \
- } while (0)
-
-#define debugf0( ... ) edac_debug_printk(0, __VA_ARGS__ )
-#define debugf1( ... ) edac_debug_printk(1, __VA_ARGS__ )
-#define debugf2( ... ) edac_debug_printk(2, __VA_ARGS__ )
-#define debugf3( ... ) edac_debug_printk(3, __VA_ARGS__ )
-#define debugf4( ... ) edac_debug_printk(4, __VA_ARGS__ )
+#define edac_debug_printk(level, fmt, ...) \
+do { \
+ if (level <= edac_debug_level) \
+ edac_printk(KERN_DEBUG, EDAC_DEBUG, \
+ "%s: " fmt, __func__, ##__VA_ARGS__); \
+} while (0)

#else /* !CONFIG_EDAC_DEBUG */

-#define debugf0( ... )
-#define debugf1( ... )
-#define debugf2( ... )
-#define debugf3( ... )
-#define debugf4( ... )
+#define edac_debug_printk(level, fmt, ...) \
+do { \
+ if (0) \
+ edac_printk(KERN_DEBUG, EDAC_DEBUG, \
+ "%s: " fmt, __func__, ##__VA_ARGS__); \
+} while (0)

#endif /* !CONFIG_EDAC_DEBUG */

+#define debugf0(fmt, ...) edac_debug_printk(0, fmt, ##__VA_ARGS__)
+#define debugf1(fmt, ...) edac_debug_printk(1, fmt, ##__VA_ARGS__)
+#define debugf2(fmt, ...) edac_debug_printk(2, fmt, ##__VA_ARGS__)
+#define debugf3(fmt, ...) edac_debug_printk(3, fmt, ##__VA_ARGS__)
+#define debugf4(fmt, ...) edac_debug_printk(4, fmt, ##__VA_ARGS__)
+
#define PCI_VEND_DEV(vend, dev) PCI_VENDOR_ID_ ## vend, \
PCI_DEVICE_ID_ ## vend ## _ ## dev

diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index a2680d8..1745a38 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -272,7 +272,7 @@
#define NUM_MTRS 4
#define CHANNELS_PER_BRANCH (2)

-/* Defines to extract the vaious fields from the
+/* Defines to extract the various fields from the
* MTRx - Memory Technology Registers
*/
#define MTR_DIMMS_PRESENT(mtr) ((mtr) & (0x1 << 8))
@@ -286,22 +286,6 @@
#define MTR_DIMM_COLS(mtr) ((mtr) & 0x3)
#define MTR_DIMM_COLS_ADDR_BITS(mtr) (MTR_DIMM_COLS(mtr) + 10)

-#ifdef CONFIG_EDAC_DEBUG
-static char *numrow_toString[] = {
- "8,192 - 13 rows",
- "16,384 - 14 rows",
- "32,768 - 15 rows",
- "reserved"
-};
-
-static char *numcol_toString[] = {
- "1,024 - 10 columns",
- "2,048 - 11 columns",
- "4,096 - 12 columns",
- "reserved"
-};
-#endif
-
/* enables the report of miscellaneous messages as CE errors - default off */
static int misc_messages;

@@ -984,8 +968,16 @@ static void decode_mtr(int slot_row, u16 mtr)
debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr));
debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr));
debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr) ? "double" : "single");
- debugf2("\t\tNUMROW: %s\n", numrow_toString[MTR_DIMM_ROWS(mtr)]);
- debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
+ debugf2("\t\tNUMROW: %s\n",
+ MTR_DIMM_ROWS(mtr) == 0 ? "8,192 - 13 rows" :
+ MTR_DIMM_ROWS(mtr) == 1 ? "16,384 - 14 rows" :
+ MTR_DIMM_ROWS(mtr) == 2 ? "32,768 - 15 rows" :
+ "reserved");
+ debugf2("\t\tNUMCOL: %s\n",
+ MTR_DIMM_COLS(mtr) == 0 ? "1,024 - 10 columns" :
+ MTR_DIMM_COLS(mtr) == 1 ? "2,048 - 11 columns" :
+ MTR_DIMM_COLS(mtr) == 2 ? "4,096 - 12 columns" :
+ "reserved");
}

static void handle_channel(struct i5000_pvt *pvt, int csrow, int channel,
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index 1869a10..4d17641 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -298,24 +298,6 @@ static inline int extract_fbdchan_indx(u32 x)
return (x>>28) & 0x3;
}

-#ifdef CONFIG_EDAC_DEBUG
-/* MTR NUMROW */
-static const char *numrow_toString[] = {
- "8,192 - 13 rows",
- "16,384 - 14 rows",
- "32,768 - 15 rows",
- "65,536 - 16 rows"
-};
-
-/* MTR NUMCOL */
-static const char *numcol_toString[] = {
- "1,024 - 10 columns",
- "2,048 - 11 columns",
- "4,096 - 12 columns",
- "reserved"
-};
-#endif
-
/* Device name and register DID (Device ID) */
struct i5400_dev_info {
const char *ctl_name; /* name for this device */
@@ -909,8 +891,16 @@ static void decode_mtr(int slot_row, u16 mtr)

debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr));
debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr) ? "double" : "single");
- debugf2("\t\tNUMROW: %s\n", numrow_toString[MTR_DIMM_ROWS(mtr)]);
- debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
+ debugf2("\t\tNUMROW: %s\n",
+ MTR_DIMM_ROWS(mtr) == 0 ? "8,192 - 13 rows" :
+ MTR_DIMM_ROWS(mtr) == 1 ? "16,384 - 14 rows" :
+ MTR_DIMM_ROWS(mtr) == 2 ? "32,768 - 15 rows" :
+ "65,536 - 16 rows");
+ debugf2("\t\tNUMCOL: %s\n",
+ MTR_DIMM_COLS(mtr) == 0 ? "1,024 - 10 columns" :
+ MTR_DIMM_COLS(mtr) == 1 ? "2,048 - 11 columns" :
+ MTR_DIMM_COLS(mtr) == 2 ? "4,096 - 12 columns" :
+ "reserved");
}

static void handle_channel(struct i5400_pvt *pvt, int csrow, int channel,
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c
index 3bafa3b..9271da3 100644
--- a/drivers/edac/i7300_edac.c
+++ b/drivers/edac/i7300_edac.c
@@ -182,24 +182,6 @@ static const u16 mtr_regs[MAX_SLOTS] = {
#define MTR_DIMM_COLS(mtr) ((mtr) & 0x3)
#define MTR_DIMM_COLS_ADDR_BITS(mtr) (MTR_DIMM_COLS(mtr) + 10)

-#ifdef CONFIG_EDAC_DEBUG
-/* MTR NUMROW */
-static const char *numrow_toString[] = {
- "8,192 - 13 rows",
- "16,384 - 14 rows",
- "32,768 - 15 rows",
- "65,536 - 16 rows"
-};
-
-/* MTR NUMCOL */
-static const char *numcol_toString[] = {
- "1,024 - 10 columns",
- "2,048 - 11 columns",
- "4,096 - 12 columns",
- "reserved"
-};
-#endif
-
/************************************************
* i7300 Register definitions for error detection
************************************************/
@@ -659,8 +641,16 @@ static int decode_mtr(struct i7300_pvt *pvt,

debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr));
debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANKS(mtr) ? "double" : "single");
- debugf2("\t\tNUMROW: %s\n", numrow_toString[MTR_DIMM_ROWS(mtr)]);
- debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]);
+ debugf2("\t\tNUMROW: %s\n",
+ MTR_DIMM_ROWS(mtr) == 0 ? "8,192 - 13 rows" :
+ MTR_DIMM_ROWS(mtr) == 1 ? "16,384 - 14 rows" :
+ MTR_DIMM_ROWS(mtr) == 2 ? "32,768 - 15 rows" :
+ "65,536 - 16 rows");
+ debugf2("\t\tNUMCOL: %s\n",
+ MTR_DIMM_COLS(mtr) == 0 ? "1,024 - 10 columns" :
+ MTR_DIMM_COLS(mtr) == 1 ? "2,048 - 11 columns" :
+ MTR_DIMM_COLS(mtr) == 2 ? "4,096 - 12 columns" :
+ "reserved");
debugf2("\t\tSIZE: %d MB\n", dinfo->megabytes);

p_csrow->grain = 8;



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