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author | Joe Perches <joe@perches.com> | 2013-04-16 22:44:07 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-17 10:01:22 -0700 |
commit | 75b9130e8af64c6878a1aa396a8446f3ce2cfb49 (patch) | |
tree | 64337c23d416ce01c1ac2449143c478ad7379704 /drivers/usb | |
parent | 61ac6ac8d662ac7ac67c864954d39d1b19948354 (diff) | |
download | kernel_goldelico_gta04-75b9130e8af64c6878a1aa396a8446f3ce2cfb49.zip kernel_goldelico_gta04-75b9130e8af64c6878a1aa396a8446f3ce2cfb49.tar.gz kernel_goldelico_gta04-75b9130e8af64c6878a1aa396a8446f3ce2cfb49.tar.bz2 |
usb: storage: Add usb_stor_dbg, reduce object size
Reduce the size of the objects by consolidating
the duplicated USB_STORAGE into a single function.
Add function usb_stor_dbg to emit debugging messages.
Always validate the format and arguments.
Reduce the number of uses of CONFIG_USB_STORAGE_DEBUG.
Reduces size of objects ~7KB when CONFIG_USB_STORAGE_DEBUG
is set.
$ size drivers/usb/storage/built-in.o*
text data bss dec hex filename
140133 55296 70312 265741 40e0d drivers/usb/storage/built-in.o.new
147494 55248 70296 273038 42a8e drivers/usb/storage/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/storage/debug.c | 20 | ||||
-rw-r--r-- | drivers/usb/storage/debug.h | 14 | ||||
-rw-r--r-- | drivers/usb/storage/isd200.c | 12 |
3 files changed, 34 insertions, 12 deletions
diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index a2b5526..b428129 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -150,7 +150,7 @@ void usb_stor_show_command(struct scsi_cmnd *srb) default: what = "(unknown command)"; break; } US_DEBUGP("Command %s (%d bytes)\n", what, srb->cmd_len); - US_DEBUGP(""); + US_DEBUGP("bytes: "); for (i = 0; i < srb->cmd_len && i < 16; i++) US_DEBUGPX(" %02x", srb->cmnd[i]); US_DEBUGPX("\n"); @@ -175,3 +175,21 @@ void usb_stor_show_sense( US_DEBUGPX(what, ascq); US_DEBUGPX("\n"); } + +int usb_stor_dbg(const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + int r; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + r = printk(KERN_DEBUG USB_STORAGE "%pV", &vaf); + + va_end(args); + + return r; +} diff --git a/drivers/usb/storage/debug.h b/drivers/usb/storage/debug.h index dbb985d..d4280e1 100644 --- a/drivers/usb/storage/debug.h +++ b/drivers/usb/storage/debug.h @@ -50,12 +50,16 @@ void usb_stor_show_command(struct scsi_cmnd *srb); void usb_stor_show_sense( unsigned char key, unsigned char asc, unsigned char ascq ); -#define US_DEBUGP(x...) printk( KERN_DEBUG USB_STORAGE x ) -#define US_DEBUGPX(x...) printk( x ) -#define US_DEBUG(x) x +__printf(1, 2) int usb_stor_dbg(const char *fmt, ...); + +#define US_DEBUGP(fmt, ...) usb_stor_dbg(fmt, ##__VA_ARGS__) +#define US_DEBUGPX(fmt, ...) printk(fmt, ##__VA_ARGS__) +#define US_DEBUG(x) x #else -#define US_DEBUGP(x...) -#define US_DEBUGPX(x...) +#define US_DEBUGP(fmt, ...) \ + do { if (0) printk(fmt, ##__VA_ARGS__); } while (0) +#define US_DEBUGPX(fmt, ...) \ + do { if (0) printk(fmt, ##__VA_ARGS__); } while (0) #define US_DEBUG(x) #endif diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index 06a3d22..55571ae 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -926,10 +926,6 @@ static int isd200_try_enum(struct us_data *us, unsigned char master_slave, /* loop until we detect !BSY or timeout */ while(1) { -#ifdef CONFIG_USB_STORAGE_DEBUG - char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ? - "Master" : "Slave"; -#endif status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); if ( status != ISD200_GOOD ) @@ -942,9 +938,13 @@ static int isd200_try_enum(struct us_data *us, unsigned char master_slave, if (!detect) { if (regs[ATA_REG_STATUS_OFFSET] & ATA_BUSY) { - US_DEBUGP(" %s status is still BSY, try again...\n",mstr); + US_DEBUGP(" %s status is still BSY, try again...\n", + master_slave == ATA_ADDRESS_DEVHEAD_STD ? + "Master" : "Slave"); } else { - US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr); + US_DEBUGP(" %s status !BSY, continue with next operation\n", + master_slave == ATA_ADDRESS_DEVHEAD_STD ? + "Master" : "Slave"); break; } } |