nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
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Updated from Linux LTS 3.10.20 to 3.10.21

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Nathan
2025-04-07 09:52:38 -05:00
parent d67348cc45
commit 8de512f759
67 changed files with 803 additions and 353 deletions
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14
arch/x86/kernel/ftrace.c
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@@ -248,6 +248,15 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
return ret;
}
static int is_ftrace_caller(unsigned long ip)
{
if (ip == (unsigned long)(&ftrace_call) ||
ip == (unsigned long)(&ftrace_regs_call))
return 1;
return 0;
}
/*
* A breakpoint was added to the code address we are about to
* modify, and this is the handle that will just skip over it.
@@ -257,10 +266,13 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
*/
int ftrace_int3_handler(struct pt_regs *regs)
{
unsigned long ip;
if (WARN_ON_ONCE(!regs))
return 0;
if (!ftrace_location(regs->ip - 1))
ip = regs->ip - 1;
if (!ftrace_location(ip) && !is_ftrace_caller(ip))
return 0;
regs->ip += MCOUNT_INSN_SIZE - 1;