2011-02-08 22:25:33

by Simon Horman

Subject: [PATCH] [patch v4] tmio_mmc: Improve readability of the output of pr_debug_status()

Reviewed-by: Guennadi Liakhovetski <[email protected]>
Signed-off-by: Simon Horman <[email protected]>

---

v2: As suggested by Guennadi Liakhovetski
* Pass status and i as parameters to STATUS_TO_TEXT
* Pad "|" with spaces to further improve readability

v3: Actually include the v2 changes
* My git-foo bites again

v4: Rebase against 2.6.38-rc4
---
drivers/mmc/host/tmio_mmc.c | 50 +++++++++++++++++++++++-------------------
1 files changed, 27 insertions(+), 23 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index e3c6ef2..a33f718 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -228,36 +228,40 @@ static void tmio_mmc_kunmap_atomic(void *virt, unsigned long *flags)

#ifdef CONFIG_MMC_DEBUG

-#define STATUS_TO_TEXT(a) \
+#define STATUS_TO_TEXT(a, status, i) \
do { \
- if (status & TMIO_STAT_##a) \
+ if (status & TMIO_STAT_##a) { \
+ if (i++) \
+ printk(" | "); \
printk(#a); \
+ } \
} while (0)

void pr_debug_status(u32 status)
{
+ int i = 0;
printk(KERN_DEBUG "status: %08x = ", status);
- STATUS_TO_TEXT(CARD_REMOVE);
- STATUS_TO_TEXT(CARD_INSERT);
- STATUS_TO_TEXT(SIGSTATE);
- STATUS_TO_TEXT(WRPROTECT);
- STATUS_TO_TEXT(CARD_REMOVE_A);
- STATUS_TO_TEXT(CARD_INSERT_A);
- STATUS_TO_TEXT(SIGSTATE_A);
- STATUS_TO_TEXT(CMD_IDX_ERR);
- STATUS_TO_TEXT(STOPBIT_ERR);
- STATUS_TO_TEXT(ILL_FUNC);
- STATUS_TO_TEXT(CMD_BUSY);
- STATUS_TO_TEXT(CMDRESPEND);
- STATUS_TO_TEXT(DATAEND);
- STATUS_TO_TEXT(CRCFAIL);
- STATUS_TO_TEXT(DATATIMEOUT);
- STATUS_TO_TEXT(CMDTIMEOUT);
- STATUS_TO_TEXT(RXOVERFLOW);
- STATUS_TO_TEXT(TXUNDERRUN);
- STATUS_TO_TEXT(RXRDY);
- STATUS_TO_TEXT(TXRQ);
- STATUS_TO_TEXT(ILL_ACCESS);
+ STATUS_TO_TEXT(CARD_REMOVE, status, i);
+ STATUS_TO_TEXT(CARD_INSERT, status, i);
+ STATUS_TO_TEXT(SIGSTATE, status, i);
+ STATUS_TO_TEXT(WRPROTECT, status, i);
+ STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
+ STATUS_TO_TEXT(CARD_INSERT_A, status, i);
+ STATUS_TO_TEXT(SIGSTATE_A, status, i);
+ STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
+ STATUS_TO_TEXT(STOPBIT_ERR, status, i);
+ STATUS_TO_TEXT(ILL_FUNC, status, i);
+ STATUS_TO_TEXT(CMD_BUSY, status, i);
+ STATUS_TO_TEXT(CMDRESPEND, status, i);
+ STATUS_TO_TEXT(DATAEND, status, i);
+ STATUS_TO_TEXT(CRCFAIL, status, i);
+ STATUS_TO_TEXT(DATATIMEOUT, status, i);
+ STATUS_TO_TEXT(CMDTIMEOUT, status, i);
+ STATUS_TO_TEXT(RXOVERFLOW, status, i);
+ STATUS_TO_TEXT(TXUNDERRUN, status, i);
+ STATUS_TO_TEXT(RXRDY, status, i);
+ STATUS_TO_TEXT(TXRQ, status, i);
+ STATUS_TO_TEXT(ILL_ACCESS, status, i);
printk("\n");
}

--
1.7.2.3

2011-02-09 00:55:37

by Chris Ball

Subject: Re: [PATCH] [patch v4] tmio_mmc: Improve readability of the output of pr_debug_status()

Hi Simon,

On Wed, Feb 09, 2011 at 07:25:22AM +0900, Simon Horman wrote:
> Reviewed-by: Guennadi Liakhovetski <[email protected]>
> Signed-off-by: Simon Horman <[email protected]>

Thanks, pushed to mmc-next.

--
Chris Ball <[email protected]> <http://printf.net/>
One Laptop Per Child