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    Subject[PATCH] kgdb: clear compilation warning
    Date
    In the function kgdb_arch_set_breakpoint, the variable is only used
    if DEBUG_RODATA is configured. This clears the following compilation
    warning:

    arch/x86/kernel/kgdb.c:749:7: warning: unused variable 'opc'

    Signed-off-by: Thiago Rafael Becker <trbecker@trbecker.org>
    ---
    arch/x86/kernel/kgdb.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
    index 8bfb614..0ea80ef 100644
    --- a/arch/x86/kernel/kgdb.c
    +++ b/arch/x86/kernel/kgdb.c
    @@ -746,7 +746,9 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
    int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
    {
    int err;
    +#ifdef CONFIG_DEBUG_RODATA
    char opc[BREAK_INSTR_SIZE];
    +#endif

    bpt->type = BP_BREAKPOINT;
    err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
    --
    1.7.10.1


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