From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Daniel P. Berrangé" <berrange@redhat.com>,
qemu-block@nongnu.org,
"Richard Henderson" <richard.henderson@linaro.org>,
"Greg Kurz" <groug@kaod.org>,
qemu-ppc@nongnu.org, "Gerd Hoffmann" <kraxel@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Cédric Le Goater" <clg@kaod.org>
Subject: [PATCH 10/23] hw/ppc/pnv: Avoid dynamic stack allocation
Date: Wed, 5 May 2021 23:10:34 +0200 [thread overview]
Message-ID: <20210505211047.1496765-11-philmd@redhat.com> (raw)
In-Reply-To: <20210505211047.1496765-1-philmd@redhat.com>
Use autofree heap allocation instead of variable-length
array on the stack.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/ppc/pnv.c | 4 ++--
hw/ppc/spapr.c | 8 ++++----
hw/ppc/spapr_pci_nvlink2.c | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 77af846cdfe..f6e3d37b751 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -141,7 +141,7 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
int smt_threads = CPU_CORE(pc)->nr_threads;
CPUPPCState *env = &cpu->env;
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
- uint32_t servers_prop[smt_threads];
+ g_autofree uint32_t *servers_prop = g_new(uint32_t, smt_threads);
int i;
uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
0xffffffff, 0xffffffff};
@@ -244,7 +244,7 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
servers_prop[i] = cpu_to_be32(pc->pir + i);
}
_FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
- servers_prop, sizeof(servers_prop))));
+ servers_prop, sizeof(*servers_prop) * smt_threads)));
}
static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t pir,
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 529ff056dd2..31c2c0d97bf 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -176,8 +176,8 @@ static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
int smt_threads)
{
int i, ret = 0;
- uint32_t servers_prop[smt_threads];
- uint32_t gservers_prop[smt_threads * 2];
+ g_autofree uint32_t *servers_prop = g_new(uint32_t, smt_threads);
+ g_autofree uint32_t *gservers_prop = g_new(uint32_t, smt_threads * 2);
int index = spapr_get_vcpu_id(cpu);
if (cpu->compat_pvr) {
@@ -195,12 +195,12 @@ static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
gservers_prop[i*2 + 1] = 0;
}
ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
- servers_prop, sizeof(servers_prop));
+ servers_prop, sizeof(*servers_prop) * smt_threads);
if (ret < 0) {
return ret;
}
ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-gserver#s",
- gservers_prop, sizeof(gservers_prop));
+ gservers_prop, sizeof(*gservers_prop) * smt_threads * 2);
return ret;
}
diff --git a/hw/ppc/spapr_pci_nvlink2.c b/hw/ppc/spapr_pci_nvlink2.c
index 8ef9b40a18d..bb61adb114c 100644
--- a/hw/ppc/spapr_pci_nvlink2.c
+++ b/hw/ppc/spapr_pci_nvlink2.c
@@ -401,7 +401,7 @@ void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void *fdt, int offset,
continue;
}
if (dev == nvslot->gpdev) {
- uint32_t npus[nvslot->linknum];
+ g_autofree uint32_t *npus = g_new(uint32_t, nvslot->linknum);
for (j = 0; j < nvslot->linknum; ++j) {
PCIDevice *npdev = nvslot->links[j].npdev;
--
2.26.3
next prev parent reply other threads:[~2021-05-05 21:23 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-05 21:10 [PATCH 00/23] misc: Remove variable-length arrays on the stack Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 01/23] block/vpc: Avoid dynamic stack allocation Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 02/23] chardev/baum: Replace magic values by X_MAX / Y_MAX definitions Philippe Mathieu-Daudé
2021-05-05 21:12 ` Samuel Thibault
2021-05-05 21:24 ` Marc-André Lureau
2021-05-05 21:10 ` [PATCH 03/23] chardev/baum: Use definitions to avoid dynamic stack allocation Philippe Mathieu-Daudé
2021-05-05 21:14 ` Samuel Thibault
2021-05-05 21:27 ` Marc-André Lureau
2021-05-05 21:39 ` Samuel Thibault
2021-05-05 21:10 ` [PATCH 04/23] chardev/baum: Avoid " Philippe Mathieu-Daudé
2021-05-05 21:15 ` Samuel Thibault
2021-05-05 21:29 ` Marc-André Lureau
2021-05-05 21:10 ` [PATCH 05/23] io/channel-websock: Replace strlen(const_str) by sizeof(const_str) - 1 Philippe Mathieu-Daudé
2021-05-06 8:36 ` Daniel P. Berrangé
2021-05-05 21:10 ` [PATCH 06/23] hw/block/dataplane/virtio-blk: Avoid dynamic stack allocation Philippe Mathieu-Daudé
2021-05-06 8:53 ` Stefan Hajnoczi
2021-05-06 9:01 ` Philippe Mathieu-Daudé
2021-05-06 14:47 ` Stefan Hajnoczi
2021-05-06 15:19 ` Philippe Mathieu-Daudé
2021-05-10 9:09 ` Stefan Hajnoczi
2021-05-05 21:10 ` [PATCH 07/23] hw/block/nvme: Use definition to avoid " Philippe Mathieu-Daudé
2021-05-05 21:22 ` Keith Busch
2021-05-05 22:07 ` Philippe Mathieu-Daudé
2021-05-05 23:09 ` Eric Blake
2021-05-06 0:14 ` Warner Losh
2021-05-06 2:15 ` Keith Busch
2021-05-06 6:42 ` Philippe Mathieu-Daudé
2021-05-07 16:22 ` Richard Henderson
2021-05-06 6:27 ` Klaus Jensen
2021-05-07 15:59 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 08/23] hw/block/nvme: Avoid " Philippe Mathieu-Daudé
2021-05-06 6:43 ` Klaus Jensen
2021-05-05 21:10 ` [PATCH 09/23] hw/net/e1000e_core: Use definition to avoid " Philippe Mathieu-Daudé
2021-05-06 3:35 ` Jason Wang
2021-05-07 16:29 ` Richard Henderson
2021-05-05 21:10 ` Philippe Mathieu-Daudé [this message]
2021-05-06 2:12 ` [PATCH 10/23] hw/ppc/pnv: Avoid " David Gibson
2021-05-05 21:10 ` [PATCH 11/23] hw/intc/xics: " Philippe Mathieu-Daudé
2021-05-06 2:13 ` David Gibson
2021-05-06 8:22 ` Greg Kurz
2021-05-06 13:52 ` Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 12/23] hw/i386/multiboot: " Philippe Mathieu-Daudé
2021-05-07 16:27 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 13/23] hw/usb/hcd-xhci: " Philippe Mathieu-Daudé
2021-05-07 16:34 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 14/23] hw/usb/hcd-ohci: Use definition to avoid " Philippe Mathieu-Daudé
2021-05-07 16:39 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 15/23] net: Avoid " Philippe Mathieu-Daudé
2021-05-06 2:15 ` David Gibson
2021-05-06 7:09 ` Jason Wang
2021-05-05 21:10 ` [PATCH 16/23] ui/curses: " Philippe Mathieu-Daudé
2021-05-07 16:42 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 17/23] ui/spice-display: " Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 18/23] ui/vnc-enc-hextile: Use definitions to avoid " Philippe Mathieu-Daudé
2021-05-07 16:46 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 19/23] ui/vnc-enc-tight: Avoid " Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 20/23] util/iov: " Philippe Mathieu-Daudé
2021-05-05 21:10 ` [PATCH 21/23] target/ppc/kvm: " Philippe Mathieu-Daudé
2021-05-06 2:16 ` David Gibson
2021-05-05 21:10 ` [PATCH 22/23] tests/unit/test-vmstate: " Philippe Mathieu-Daudé
2021-05-07 16:52 ` Richard Henderson
2021-05-05 21:10 ` [PATCH 23/23] configure: Prohibit variable-length allocations by using -Wvla CPPFLAG Philippe Mathieu-Daudé
2021-05-07 16:56 ` Richard Henderson
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