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i40e: make const array patterns static, reduces object code size

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Don't populate const array patterns on the stack, instead make it
static. Makes the object code smaller by over 60 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   1953	    496	      0	   2449	    991	i40e_diag.o

After:
   text	   data	    bss	    dec	    hex	filename
   1798	    584	      0	   2382	    94e	i40e_diag.o

(gcc 6.3.0, x86-64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Colin Ian King 2017-09-22 15:11:38 +01:00 • committed by Jeff Kirsher
parent 2027d4deac
commit b06da8f939
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_diag.c
View file

@ -36,7 +36,9 @@
static i40e_status i40e_diag_reg_pattern_test(struct i40e_hw *hw,
u32 reg, u32 mask)
{
const u32 patterns[] = {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
static const u32 patterns[] = {
0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
};
u32 pat, val, orig_val;
int i;