Re: [PATCH v2] scsi: sd: Make protection lookup tables static and relocate functions

From: Bart Van Assche
Date: Tue Jan 08 2019 - 21:42:40 EST


On 1/8/19 7:14 AM, John Garry wrote:
Currently the protection lookup tables in sd_prot_flag_mask() and
sd_prot_op() are declared as non-static. As such, they will be rebuilt
for each respective function call.

Optimise by making them static.

This saves ~100B object code for sd.c:

Before:
text data bss dec hex filename
25403 1024 16 26443 674b drivers/scsi/sd.o

After:
text data bss dec hex filename
25299 1024 16 26339 66e3 drivers/scsi/sd.o

In addition, since those same functions are declared in sd.h, but each are
only referenced in sd.c, relocate them to that same c file.

The inline specifier is dropped also, since gcc should be able to make the
decision to inline.

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>