[PATCH 4/5] scsi: smartpqi: Use vsprintf %phNX extension

From: Joe Perches
Date: Thu Aug 26 2021 - 14:43:22 EST


Reduce object size by using the %phNX extension to format a sysfs output
buffer with identical output.

compiled x86-64 defconfig w/ smartpqi and gcc 10.3.0

$ size drivers/scsi/smartpqi/smartpqi_init.o*
text data bss dec hex filename
69791 2205 48 72044 1196c drivers/scsi/smartpqi/smartpqi_init.o.new
69950 2205 48 72203 11a0b drivers/scsi/smartpqi/smartpqi_init.o.old

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
drivers/scsi/smartpqi/smartpqi_init.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index ecb2af3f43ca3..eb39490b196cc 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6674,13 +6674,7 @@ static ssize_t pqi_unique_id_show(struct device *dev,

spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);

- return scnprintf(buffer, PAGE_SIZE,
- "%02X%02X%02X%02X%02X%02X%02X%02X"
- "%02X%02X%02X%02X%02X%02X%02X%02X\n",
- unique_id[0], unique_id[1], unique_id[2], unique_id[3],
- unique_id[4], unique_id[5], unique_id[6], unique_id[7],
- unique_id[8], unique_id[9], unique_id[10], unique_id[11],
- unique_id[12], unique_id[13], unique_id[14], unique_id[15]);
+ return scnprintf(buffer, PAGE_SIZE, "%16phNX\n", unique_id);
}

static ssize_t pqi_lunid_show(struct device *dev,
--
2.30.0