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Re: [Qemu-devel] [PATCH] exec: Fix prototype of phys_mem_set_alloc and r
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] exec: Fix prototype of phys_mem_set_alloc and related functions |
Date: |
Mon, 14 Oct 2013 17:32:25 +0300 |
On Sun, Sep 29, 2013 at 08:56:45PM +0200, Stefan Weil wrote:
> phys_mem_alloc and its assigned values qemu_anon_ram_alloc and
> legacy_s390_alloc must have identical argument lists.
>
> legacy_s390_alloc uses the size parameter to call mmap, so size_t is
> good enough for all of them.
>
> This patch fixes compiler errors on i686 Linux hosts:
>
> CC alpha-softmmu/exec.o
> exec.c:752:51: error:
> initialization from incompatible pointer type [-Werror]
> exec.c: In function 'qemu_ram_alloc_from_ptr':
> exec.c:1139:32: error:
> comparison of distinct pointer types lacks a cast [-Werror]
> exec.c: In function 'qemu_ram_remap':
> exec.c:1283:21: error:
> comparison of distinct pointer types lacks a cast [-Werror]
>
> Signed-off-by: Stefan Weil <address@hidden>
Fixes build on 32 build boxes.
Reviewed-by: Michael S. Tsirkin <address@hidden>
Tested-by: Michael S. Tsirkin <address@hidden>
Anthony could you apply this quickly?
Broken builds are annoying ...
> ---
> exec.c | 4 ++--
> include/exec/exec-all.h | 2 +-
> target-s390x/kvm.c | 4 ++--
> 3 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 26681ce..1a08115 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -749,14 +749,14 @@ static int subpage_register (subpage_t *mmio, uint32_t
> start, uint32_t end,
> uint16_t section);
> static subpage_t *subpage_init(AddressSpace *as, hwaddr base);
>
> -static void *(*phys_mem_alloc)(ram_addr_t size) = qemu_anon_ram_alloc;
> +static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc;
>
> /*
> * Set a custom physical guest memory alloator.
> * Accelerators with unusual needs may need this. Hopefully, we can
> * get rid of it eventually.
> */
> -void phys_mem_set_alloc(void *(*alloc)(ram_addr_t))
> +void phys_mem_set_alloc(void *(*alloc)(size_t))
> {
> phys_mem_alloc = alloc;
> }
> diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
> index 77242e2..50ecfd4 100644
> --- a/include/exec/exec-all.h
> +++ b/include/exec/exec-all.h
> @@ -368,7 +368,7 @@ static inline uintptr_t tcg_getra_ext(uintptr_t ra)
>
> #if !defined(CONFIG_USER_ONLY)
>
> -void phys_mem_set_alloc(void *(*alloc)(ram_addr_t));
> +void phys_mem_set_alloc(void *(*alloc)(size_t));
>
> struct MemoryRegion *iotlb_to_region(hwaddr index);
> bool io_mem_read(struct MemoryRegion *mr, hwaddr addr,
> diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
> index 4923e0a..d229bdf 100644
> --- a/target-s390x/kvm.c
> +++ b/target-s390x/kvm.c
> @@ -93,7 +93,7 @@ const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
>
> static int cap_sync_regs;
>
> -static void *legacy_s390_alloc(ram_addr_t size);
> +static void *legacy_s390_alloc(size_t size);
>
> int kvm_arch_init(KVMState *s)
> {
> @@ -325,7 +325,7 @@ int kvm_s390_get_registers_partial(CPUState *cs)
> * to grow. We also have to use MAP parameters that avoid
> * read-only mapping of guest pages.
> */
> -static void *legacy_s390_alloc(ram_addr_t size)
> +static void *legacy_s390_alloc(size_t size)
> {
> void *mem;
>
> --
> 1.7.10.4
>
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