On 23/09/15 20:57, Denys Vlasenko wrote:

With this .config: http://busybox.net/~vda/kernel_config,
after uninlining these functions have sizes and callsite counts
as follows:

__OUTPLLP: 61 bytes, 12 callsites
__INPLL:   79 bytes, 150 callsites
__OUTPLL:  82 bytes, 138 callsites
_OUTREGP: 101 bytes, 8 callsites
_radeon_msleep:      66 bytes, 18 callsites
_radeon_fifo_wait:   83 bytes, 24 callsites
_radeon_engine_idle: 92 bytes, 10 callsites
radeon_engine_flush: 105 bytes, 2 callsites
radeon_pll_errata_after_index_slow: 31 bytes, 11 callsites
radeon_pll_errata_after_data_slow:  91 bytes, 9 callsites

radeon_pll_errata_after_FOO functions are split into two parts:
the inlined part which checks corresponding rinfo->errata bit,
and out-of-line part which performs workaround magic per se.

Reduction in code size is about 49,500 bytes:

    text     data      bss       dec     hex filename
85789648 22294616 20627456 128711720 7abfc28 vmlinux.before
85740176 22294680 20627456 128662312 7ab3b28 vmlinux

Thanks, applying for 4.4.

 Tomi