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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef DIV_ROUND_UP #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) #endif #define SIZEOF_MCOUNT_LOC_ENTRY 8 #define SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE 24 #define FTRACE_HOTPATCH_TRAMPOLINES_SIZE(n) \ DIV_ROUND_UP(SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE * (n), \ SIZEOF_MCOUNT_LOC_ENTRY) #ifdef CONFIG_FUNCTION_TRACER #define FTRACE_HOTPATCH_TRAMPOLINES_TEXT \ . = ALIGN(8); \ __ftrace_hotpatch_trampolines_start = .; \ . = . + FTRACE_HOTPATCH_TRAMPOLINES_SIZE(__stop_mcount_loc - \ __start_mcount_loc); \ __ftrace_hotpatch_trampolines_end = .; #else #define FTRACE_HOTPATCH_TRAMPOLINES_TEXT #endif