MIPS: Loongson64: Remove a "set but not used" variable

This fix build warning:

   arch/mips/loongson64/env.c: In function 'prom_init_env':
>> arch/mips/loongson64/env.c:50:14: warning: variable 'device' set but not used [-Wunused-but-set-variable]
      50 |  u16 vendor, device;
         |              ^~~~~~
   {standard input}: Assembler messages:
   {standard input}:788: Error: found '(', expected: ')'
   {standard input}:788: Error: found '(', expected: ')'
   {standard input}:788: Error: non-constant expression in ".if" statement
   {standard input}:788: Error: junk at end of line, first unrecognized character is `('
   {standard input}:801: Error: found '(', expected: ')'
   {standard input}:801: Error: found '(', expected: ')'
   {standard input}:801: Error: non-constant expression in ".if" statement
   {standard input}:801: Error: junk at end of line, first unrecognized character is `('

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c
index c8bb75d58f17aff14eea233fc3218d0a17337b92..c961e2999f15ac83fa0eed2541564799813a94f2 100644 (file)
--- a/arch/mips/loongson64/env.c
+++ b/arch/mips/loongson64/env.c
@@ -62,7 +62,7 @@ void __init prom_lefi_init_env(void)
        struct efi_cpuinfo_loongson *ecpu;
        struct irq_source_routing_table *eirq_source;
        u32 id;
-       u16 vendor, device;
+       u16 vendor;
 
        /* firmware arguments are initialized in head.S */
        boot_p = (struct boot_params *)fw_arg2;
@@ -166,7 +166,6 @@ void __init prom_lefi_init_env(void)
        /* Read the ID of PCI host bridge to detect bridge type */
        id = readl(HOST_BRIDGE_CONFIG_ADDR);
        vendor = id & 0xffff;
-       device = (id >> 16) & 0xffff;
 
        switch (vendor) {
        case PCI_VENDOR_ID_LOONGSON: