i2c: rzv2m: Constify struct i2c_algorithm

'struct i2c_algorithm' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  11027	    646	     16	  11689	   2da9	drivers/i2c/busses/i2c-rzv2m.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  11107	    566	     16	  11689	   2da9	drivers/i2c/busses/i2c-rzv2m.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Link: https://lore.kernel.org/r/537d93441ced53bffa6553b8ec93d007e64cb9a5.1743258995.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

This commit is contained in:

Christophe JAILLET

2025-05-19 22:23:54 +02:00

committed by

Andi Shyti

parent f4a5f88152

commit 504cb3ce52

1 changed files with 1 additions and 1 deletions

									
										drivers/i2c/busses/i2c-rzv2m.c
									
		+1
		-1
	
												View File
												
				@@ -402,7 +402,7 @@ static const struct i2c_adapter_quirks rzv2m_i2c_quirks = {

					.flags = I2C_AQ_NO_ZERO_LEN,

				};

				static struct i2c_algorithm rzv2m_i2c_algo = {

				static const struct i2c_algorithm rzv2m_i2c_algo = {

					.xfer = rzv2m_i2c_xfer,

					.functionality = rzv2m_i2c_func,

				};