diff options
| author | Yury Norov (NVIDIA) <yury.norov@gmail.com> | 2025-08-14 22:09:35 +0300 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2026-04-01 06:51:07 +0300 |
| commit | f73338d089deedb4f4f1e49751c30b8b7f595ecd (patch) | |
| tree | 3a467d5a79415afd861a4b3acb2999214dbb66df | |
| parent | cae734710dd156e2fbb4d66cdb22bbd5080beb52 (diff) | |
| download | linux-f73338d089deedb4f4f1e49751c30b8b7f595ecd.tar.xz | |
powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe()
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
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 885392f4cd94..83f75d88e53b 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -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; } |