serial: max310x: remove holes in struct max310x_devtype
Running pahole shows that there are some holes within the max310x_devtype structure. Remove holes and optimize alignment by reorganizing structure members. This can also lead to data structure size reduction for some CPUs. On 64-bit CPU (arm64): Before: /* size: 40, cachelines: 1, members: 6 */ /* sum members: 34, holes: 2, sum holes: 6 */ /* last cacheline: 40 bytes */ After: /* size: 40, cachelines: 1, members: 6 */ /* padding: 6 */ /* last cacheline: 40 bytes */ On 32-bit CPU (i386): Before: /* size: 32, cachelines: 1, members: 6 */ /* sum members: 26, holes: 2, sum holes: 6 */ /* last cacheline: 32 bytes */ After: /* size: 24, cachelines: 1, members: 8 */ /* padding: 2 */ /* last cacheline: 24 bytes */ Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20240118152213.2644269-7-hugo@hugovil.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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