tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git  
master
head:   a2f5ea9e314ba6778f885c805c921e9362ec0420
commit: 57d3b816718c1cf832e2929a754da3564c6127cc firmware: qcom_scm: Remove 
thin wrappers
compiler: aarch64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

>> drivers/firmware/qcom_scm.c:181:12: warning: Redundant condition: cpus. 
>> '!cpus || (cpus && cpumask_empty(cpus))' is equivalent to '!cpus || 
>> cpumask_empty(cpus)' [redundantCondition]
    if (!cpus || (cpus && cpumask_empty(cpus)))
              ^

vim +181 drivers/firmware/qcom_scm.c

65f0c90b7d4685 Elliot Berman 2020-01-07  164  int 
qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
2ce76a6ad32fa0 Lina Iyer     2015-03-02  165  {
57d3b816718c1c Elliot Berman 2020-01-07  166    int flags = 0;
57d3b816718c1c Elliot Berman 2020-01-07  167    int cpu;
57d3b816718c1c Elliot Berman 2020-01-07  168    int scm_cb_flags[] = {
57d3b816718c1c Elliot Berman 2020-01-07  169            
QCOM_SCM_FLAG_COLDBOOT_CPU0,
57d3b816718c1c Elliot Berman 2020-01-07  170            
QCOM_SCM_FLAG_COLDBOOT_CPU1,
57d3b816718c1c Elliot Berman 2020-01-07  171            
QCOM_SCM_FLAG_COLDBOOT_CPU2,
57d3b816718c1c Elliot Berman 2020-01-07  172            
QCOM_SCM_FLAG_COLDBOOT_CPU3,
57d3b816718c1c Elliot Berman 2020-01-07  173    };
57d3b816718c1c Elliot Berman 2020-01-07  174    struct qcom_scm_desc desc = {
57d3b816718c1c Elliot Berman 2020-01-07  175            .svc = 
QCOM_SCM_SVC_BOOT,
57d3b816718c1c Elliot Berman 2020-01-07  176            .cmd = 
QCOM_SCM_BOOT_SET_ADDR,
57d3b816718c1c Elliot Berman 2020-01-07  177            .arginfo = 
QCOM_SCM_ARGS(2),
57d3b816718c1c Elliot Berman 2020-01-07  178            .owner = 
ARM_SMCCC_OWNER_SIP,
57d3b816718c1c Elliot Berman 2020-01-07  179    };
57d3b816718c1c Elliot Berman 2020-01-07  180  
57d3b816718c1c Elliot Berman 2020-01-07 @181    if (!cpus || (cpus && 
cpumask_empty(cpus)))
                                                    
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This could be written as:  if (!cpus || cpumask_empty(cpus))

57d3b816718c1c Elliot Berman 2020-01-07  182            return -EINVAL;
57d3b816718c1c Elliot Berman 2020-01-07  183  
57d3b816718c1c Elliot Berman 2020-01-07  184    for_each_cpu(cpu, cpus) {
57d3b816718c1c Elliot Berman 2020-01-07  185            if (cpu < 
ARRAY_SIZE(scm_cb_flags))
57d3b816718c1c Elliot Berman 2020-01-07  186                    flags |= 
scm_cb_flags[cpu];
57d3b816718c1c Elliot Berman 2020-01-07  187            else
57d3b816718c1c Elliot Berman 2020-01-07  188                    
set_cpu_present(cpu, false);
57d3b816718c1c Elliot Berman 2020-01-07  189    }
57d3b816718c1c Elliot Berman 2020-01-07  190  
57d3b816718c1c Elliot Berman 2020-01-07  191    desc.args[0] = flags;
57d3b816718c1c Elliot Berman 2020-01-07  192    desc.args[1] = 
virt_to_phys(entry);
57d3b816718c1c Elliot Berman 2020-01-07  193  
57d3b816718c1c Elliot Berman 2020-01-07  194    return 
qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL);
2ce76a6ad32fa0 Lina Iyer     2015-03-02  195  }

---
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