x86/speculation: Clean up spectre_v2_parse_cmdline()
Remove the unnecessary 'else' statement in spectre_v2_parse_cmdline() to save an indentation level. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Casey Schaufler <casey.schaufler@intel.com> Cc: Asit Mallick <asit.k.mallick@intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Jon Masters <jcm@redhat.com> Cc: Waiman Long <longman9394@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Dave Stewart <david.c.stewart@intel.com> Cc: Kees Cook <keescook@chromium.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20181125185003.688010903@linutronix.de
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arch/x86/kernel/cpu
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@ -276,22 +276,21 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
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if (cmdline_find_option_bool(boot_command_line, "nospectre_v2"))
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return SPECTRE_V2_CMD_NONE;
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else {
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ret = cmdline_find_option(boot_command_line, "spectre_v2", arg, sizeof(arg));
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if (ret < 0)
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return SPECTRE_V2_CMD_AUTO;
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for (i = 0; i < ARRAY_SIZE(mitigation_options); i++) {
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if (!match_option(arg, ret, mitigation_options[i].option))
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continue;
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cmd = mitigation_options[i].cmd;
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break;
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}
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ret = cmdline_find_option(boot_command_line, "spectre_v2", arg, sizeof(arg));
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if (ret < 0)
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return SPECTRE_V2_CMD_AUTO;
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if (i >= ARRAY_SIZE(mitigation_options)) {
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pr_err("unknown option (%s). Switching to AUTO select\n", arg);
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return SPECTRE_V2_CMD_AUTO;
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}
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for (i = 0; i < ARRAY_SIZE(mitigation_options); i++) {
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if (!match_option(arg, ret, mitigation_options[i].option))
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continue;
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cmd = mitigation_options[i].cmd;
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break;
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}
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if (i >= ARRAY_SIZE(mitigation_options)) {
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pr_err("unknown option (%s). Switching to AUTO select\n", arg);
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return SPECTRE_V2_CMD_AUTO;
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}
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if ((cmd == SPECTRE_V2_CMD_RETPOLINE ||
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