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powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe()

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Use the dedicated bitmap_alloc() in pnv_ioda_pick_m64_pe() and drop
some housekeeping code.

Because pe_alloc is local, annotate it with __free() and get rid of
the explicit kfree() calls.

Suggested-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250814190936.381346-2-yury.norov@gmail.com
This commit is contained in:
Yury Norov (NVIDIA)
2025-08-14 15:09:35 -04:00
committed by Madhavan Srinivasan
parent cae734710d
commit f73338d089
1 changed files with 2 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/powerpc/platforms/powernv/pci-ioda.c
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@@ -292,18 +292,16 @@ static void pnv_ioda_reserve_m64_pe(struct pci_bus *bus,
static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
{
unsigned long *pe_alloc __free(bitmap) = NULL;
struct pnv_phb *phb = pci_bus_to_pnvhb(bus);
struct pnv_ioda_pe *master_pe, *pe;
unsigned long size, *pe_alloc;
int i;
/* Root bus shouldn't use M64 */
if (pci_is_root_bus(bus))
return NULL;
/* Allocate bitmap */
size = ALIGN(phb->ioda.total_pe_num / 8, sizeof(unsigned long));
pe_alloc = kzalloc(size, GFP_KERNEL);
pe_alloc = bitmap_zalloc(phb->ioda.total_pe_num, GFP_KERNEL);
if (!pe_alloc) {
pr_warn("%s: Out of memory !\n",
__func__);
@@ -319,7 +317,6 @@ static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
* pick M64 dependent PE#.
*/
if (bitmap_empty(pe_alloc, phb->ioda.total_pe_num)) {
kfree(pe_alloc);
return NULL;
}
@@ -345,7 +342,6 @@ static struct pnv_ioda_pe *pnv_ioda_pick_m64_pe(struct pci_bus *bus, bool all)
}
}
kfree(pe_alloc);
return master_pe;
}