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86e50ab6f8
Mark get_current() and current_thread_info() functions as always_inline to
fix the following modpost warning:
WARNING: modpost: vmlinux: section mismatch in reference: get_current+0xc (section: .text.unlikely) -> initcall_level_names (section: .init.data)
The warning happens when these functions are called from an __init
function and they don't get inlined (remain in the .text section) while
the value they return points into .init.data section. Assuming
get_current() always returns a valid address, this situation can happen
only during init stage and accessing .init.data from .text section during
that stage should pose no issues.
Link: https://lkml.kernel.org/r/20240704132506.1011978-2-surenb@google.com
Fixes: 22d407b164 ("lib: add allocation tagging support for memory allocation profiling")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Chris Zankel <chris@zankel.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
41 lines
749 B
C
41 lines
749 B
C
/*
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* include/asm-xtensa/current.h
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2005 Tensilica Inc.
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*/
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#ifndef _XTENSA_CURRENT_H
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#define _XTENSA_CURRENT_H
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#include <asm/thread_info.h>
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#ifndef __ASSEMBLY__
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#include <linux/thread_info.h>
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struct task_struct;
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static __always_inline struct task_struct *get_current(void)
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{
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return current_thread_info()->task;
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}
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#define current get_current()
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register unsigned long current_stack_pointer __asm__("a1");
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#else
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#define GET_CURRENT(reg,sp) \
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GET_THREAD_INFO(reg,sp); \
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l32i reg, reg, TI_TASK \
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#endif
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#endif /* XTENSA_CURRENT_H */
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