linux-kernel - [PATCH] powerpc/xmon: Fix warning comparing pointer to 0

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Message-ID: <1648086596-26899-1-git-send-email-baihaowen@meizu.com>
Date:   Thu, 24 Mar 2022 09:49:56 +0800
From:   Haowen Bai <baihaowen@...zu.com>
To:     <mpe@...erman.id.au>, <benh@...nel.crashing.org>,
        <paulus@...ba.org>
CC:     <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        "Haowen Bai" <baihaowen@...zu.com>
Subject: [PATCH] powerpc/xmon: Fix warning comparing pointer to 0

Avoid pointer type value compared with 0 to make code clear.

Signed-off-by: Haowen Bai <baihaowen@...zu.com>
---
 arch/powerpc/xmon/spu-dis.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/xmon/spu-dis.c b/arch/powerpc/xmon/spu-dis.c
index 4b0a4e6..6078aa5 100644
--- a/arch/powerpc/xmon/spu-dis.c
+++ b/arch/powerpc/xmon/spu-dis.c
@@ -34,7 +34,7 @@ init_spu_disassemble (void)
       int o = spu_opcodes[i].opcode;
       if (o >= SPU_DISASM_TBL_SIZE)
 	continue; /* abort (); */
-      if (spu_disassemble_table[o] == 0)
+      if (!spu_disassemble_table[o])
 	spu_disassemble_table[o] = &spu_opcodes[i];
     }
 }
@@ -48,30 +48,30 @@ get_index_for_opcode (unsigned int insn)
 
   /* Init the table.  This assumes that element 0/opcode 0 (currently
    * NOP) is always used */
-  if (spu_disassemble_table[0] == 0)
+  if (!spu_disassemble_table[0])
     init_spu_disassemble ();
 
-  if ((index = spu_disassemble_table[opcode & 0x780]) != 0
+  if ((index = spu_disassemble_table[opcode & 0x780]) != NULL
       && index->insn_type == RRR)
     return index;
 
-  if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0
+  if ((index = spu_disassemble_table[opcode & 0x7f0]) != NULL
       && (index->insn_type == RI18 || index->insn_type == LBT))
     return index;
 
-  if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0
+  if ((index = spu_disassemble_table[opcode & 0x7f8]) != NULL
       && index->insn_type == RI10)
     return index;
 
-  if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0
+  if ((index = spu_disassemble_table[opcode & 0x7fc]) != NULL
       && (index->insn_type == RI16))
     return index;
 
-  if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0
+  if ((index = spu_disassemble_table[opcode & 0x7fe]) != NULL
       && (index->insn_type == RI8))
     return index;
 
-  if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0)
+  if ((index = spu_disassemble_table[opcode & 0x7ff]) != NULL)
     return index;
 
   return NULL;
@@ -89,7 +89,7 @@ print_insn_spu (unsigned long insn, unsigned long memaddr)
 
   index = get_index_for_opcode (insn);
 
-  if (index == 0)
+  if (!index)
     {
       printf(".long 0x%lx", insn);
     }
-- 
2.7.4