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powerpc: Use NULL instead of 0 for null pointers 

Sparse reports several uses of 0 for pointer arguments and comparisons.
Replace with NULL to better convey the intent. Remove entirely if a
comparison to follow the kernel style of implicit boolean conversions.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231011053711.93427-5-bgray@linux.ibm.com
This commit is contained in:
Benjamin Gray 2023-10-11 16:37:03 +11:00 committed by Michael Ellerman
parent 340a60e372
commit ddfb7d9db8
6 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kernel/setup_64.c
View File

@ -364,7 +364,7 @@ void __init early_setup(unsigned long dt_ptr)
*/
initialise_paca(&boot_paca, 0);
fixup_boot_paca(&boot_paca);
WARN_ON(local_paca != 0);
WARN_ON(local_paca);
setup_paca(&boot_paca); /* install the paca into registers */
/* -------- printk is now safe to use ------- */

2
arch/powerpc/kvm/book3s_xive_native.c
View File

@ -567,7 +567,7 @@ static int kvmppc_xive_native_set_queue_config(struct kvmppc_xive *xive,
u8 priority;
struct kvm_ppc_xive_eq kvm_eq;
int rc;
__be32 *qaddr = 0;
__be32 *qaddr = NULL;
struct page *page;
struct xive_q *q;
gfn_t gfn;

4
arch/powerpc/net/bpf_jit_comp.c
View File

@ -146,9 +146,9 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
* update ctgtx.idx as it pretends to output instructions, then we can
* calculate total size from idx.
*/
bpf_jit_build_prologue(0, &cgctx);
bpf_jit_build_prologue(NULL, &cgctx);
addrs[fp->len] = cgctx.idx * 4;
bpf_jit_build_epilogue(0, &cgctx);
bpf_jit_build_epilogue(NULL, &cgctx);
fixup_len = fp->aux->num_exentries * BPF_FIXUP_LEN * 4;
extable_len = fp->aux->num_exentries * sizeof(struct exception_table_entry);

2
arch/powerpc/perf/imc-pmu.c
View File

@ -544,7 +544,7 @@ static int nest_imc_event_init(struct perf_event *event)
break;
}
pcni++;
} while (pcni->vbase != 0);
} while (pcni->vbase);
if (!flag)
return -ENODEV;

2
arch/powerpc/platforms/4xx/soc.c
View File

@ -112,7 +112,7 @@ static int __init ppc4xx_l2c_probe(void)
}
/* Install error handler */
if (request_irq(irq, l2c_error_handler, 0, "L2C", 0) < 0) {
if (request_irq(irq, l2c_error_handler, 0, "L2C", NULL) < 0) {
printk(KERN_ERR "Cannot install L2C error handler"
", cache is not enabled\n");
of_node_put(np);

8
arch/powerpc/platforms/pseries/lpar.c
View File

@ -192,9 +192,9 @@ static void free_dtl_buffers(unsigned long *time_limit)
continue;
kmem_cache_free(dtl_cache, pp->dispatch_log);
pp->dtl_ridx = 0;
pp->dispatch_log = 0;
pp->dispatch_log_end = 0;
pp->dtl_curr = 0;
pp->dispatch_log = NULL;
pp->dispatch_log_end = NULL;
pp->dtl_curr = NULL;
if (time_limit && time_after(jiffies, *time_limit)) {
cond_resched();
@ -223,7 +223,7 @@ static void destroy_cpu_associativity(void)
{
kfree(vcpu_associativity);
kfree(pcpu_associativity);
vcpu_associativity = pcpu_associativity = 0;
vcpu_associativity = pcpu_associativity = NULL;
}
static __be32 *__get_cpu_associativity(int cpu, __be32 *cpu_assoc, int flag)