Local variables shadowing other local variables or parameters make the
code needlessly hard to understand.  Bugs love to hide in such code.
Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
on polling error".

This patch removes the local variable shadowing. Tested by adding:

    --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'

To configure

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230925043023.71448-5-alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Local variables shadowing other local variables or parameters make the
code needlessly hard to understand.  Bugs love to hide in such code.
Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
on polling error".

This patch removes the local variable shadowing. Tested by adding:

    --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'

To configure

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230925043023.71448-4-alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Local variables shadowing other local variables or parameters make the
code needlessly hard to understand.  Bugs love to hide in such code.
Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
on polling error".

This patch removes the local variable shadowing. Tested by adding:

    --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'

To configure

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230925043023.71448-3-alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Local variables shadowing other local variables or parameters make the
code needlessly hard to understand.  Bugs love to hide in such code.
Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
on polling error".

This patch removes the local variable shadowing. Tested by adding:

    --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'

To configure

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230925043023.71448-2-alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Address all compiler complaints from -Wshadow in qemu-nbd.  Several
instances of 'int ret' became shadows when commit 4fbec260 added 'ret'
at a higher scope in main.  More interesting was the 'void *ret'
capturing the result of a pthread; where we were conceptually doing
'(void*)(intptr_t)EXIT_FAILURE != NULL' which just feels wrong (even
though it happens to compile correctly), so it was worth a better
cleanup.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20230922205019.2755352-2-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

This is confusing as one 'action' variable is used for storing
a SCMP_ enum value, while the other 'action' variable is used
for storing a SECCOMP_ enum value.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20230922160644.438631-3-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Both instances of 'ret' are used to store a gnutls API return code.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20230922160644.438631-2-berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

This patch fixes the warning of shadowed local variable:

../hw/i386/intel_iommu.c: In function ‘vtd_address_space_unmap’:
../hw/i386/intel_iommu.c:3773:18: warning: declaration of ‘size’ shadows a previous local [-Wshadow=compatible-local]
 3773 |         uint64_t size = mask + 1;
      |                  ^~~~
../hw/i386/intel_iommu.c:3747:12: note: shadowed declaration is here
 3747 |     hwaddr size, remain;
      |            ^~~~

Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-ID: <20230922160410.138786-1-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

commit 8137355e ("aspeed/timer: Fix behaviour running Linux")
introduced a MAX() expression to calculate the next timer deadline :

    return calculate_time(t, MAX(MAX(t->match[0], t->match[1]), 0));

The second MAX() is not necessary since the compared values are an
unsigned and 0. Simply remove it and fix warning :

  ../hw/timer/aspeed_timer.c: In function ‘calculate_next’:
  ../include/qemu/osdep.h:396:31: warning: declaration of ‘_a’ shadows a previous local [-Wshadow=compatible-local]
    396 |         typeof(1 ? (a) : (b)) _a = (a), _b = (b);       \
        |                               ^~
  ../hw/timer/aspeed_timer.c:170:12: note: in expansion of macro ‘MAX’
    170 |     next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0);
        |            ^~~
  ../hw/timer/aspeed_timer.c:170:16: note: in expansion of macro ‘MAX’
    170 |     next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0);
        |                ^~~
  /home/legoater/work/qemu/qemu-aspeed.git/include/qemu/osdep.h:396:31: note: shadowed declaration is here
    396 |         typeof(1 ? (a) : (b)) _a = (a), _b = (b);       \
        |                               ^~
  ../hw/timer/aspeed_timer.c:170:12: note: in expansion of macro ‘MAX’
    170 |     next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0);
        |            ^~~

Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230922155924.1172019-5-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

to fix warning :

  ../hw/i3c/aspeed_i3c.c: In function ‘aspeed_i3c_realize’:
  ../hw/i3c/aspeed_i3c.c:1959:17: warning: declaration of ‘dev’ shadows a parameter [-Wshadow=local]
   1959 |         Object *dev = OBJECT(&s->devices[i]);
        |                 ^~~
  ../hw/i3c/aspeed_i3c.c:1942:45: note: shadowed declaration is here
   1942 | static void aspeed_i3c_realize(DeviceState *dev, Error **errp)
        |                                ~~~~~~~~~~~~~^~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230922155924.1172019-4-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Remove superfluous local 'irq' variables and use the one define at the
top of the routine. This fixes warnings in aspeed_soc_ast2600_realize()
such as :

  ../hw/arm/aspeed_ast2600.c: In function ‘aspeed_soc_ast2600_realize’:
  ../hw/arm/aspeed_ast2600.c:420:18: warning: declaration of ‘irq’ shadows a previous local [-Wshadow=compatible-local]
    420 |         qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
        |                  ^~~
  ../hw/arm/aspeed_ast2600.c:312:14: note: shadowed declaration is here
    312 |     qemu_irq irq;
        |              ^~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230922155924.1172019-3-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Remove superfluous local 'data' variable and use the one define at the
top of the routine. This fixes :

  ../hw/i2c/aspeed_i2c.c: In function ‘aspeed_i2c_bus_recv’:
  ../hw/i2c/aspeed_i2c.c:315:17: warning: declaration of ‘data’ shadows a previous local [-Wshadow=compatible-local]
    315 |         uint8_t data;
        |                 ^~~~
  ../hw/i2c/aspeed_i2c.c:288:13: note: shadowed declaration is here
    288 |     uint8_t data;
        |             ^~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230922155924.1172019-2-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

The STE_CTXPTR() and STE_S2TTB() macros both extract two halves
of an address from fields in the STE and combine them into a
single value to return. The current code for this uses a GCC
statement expression. There are two problems with this:

(1) The type chosen for the variable in the statement expr
is 'unsigned long', which might not be 64 bits

(2) the name chosen for the variable causes -Wshadow warnings
because it's the same as a variable in use at the callsite:

In file included from ../../hw/arm/smmuv3.c:34:
../../hw/arm/smmuv3.c: In function ‘smmu_get_cd’:
../../hw/arm/smmuv3-internal.h:538:23: warning: declaration of ‘addr’ shadows a previous local [-Wshadow=compatible-local]
  538 |         unsigned long addr;                                     \
      |                       ^~~~
../../hw/arm/smmuv3.c:339:23: note: in expansion of macro ‘STE_CTXPTR’
  339 |     dma_addr_t addr = STE_CTXPTR(ste);
      |                       ^~~~~~~~~~
../../hw/arm/smmuv3.c:339:16: note: shadowed declaration is here
  339 |     dma_addr_t addr = STE_CTXPTR(ste);
      |                ^~~~

Sidestep both of these problems by just using a single
expression rather than a statement expr.

For CMD_ADDR, we got the type of the variable right but still
run into -Wshadow problems:

In file included from ../../hw/arm/smmuv3.c:34:
../../hw/arm/smmuv3.c: In function ‘smmuv3_range_inval’:
../../hw/arm/smmuv3-internal.h:334:22: warning: declaration of ‘addr’ shadows a previous local [-Wshadow=compatible-local]
  334 |             uint64_t addr = high << 32 | (low << 12);         \
      |                      ^~~~
../../hw/arm/smmuv3.c:1104:28: note: in expansion of macro ‘CMD_ADDR’
 1104 |     dma_addr_t end, addr = CMD_ADDR(cmd);
      |                            ^~~~~~~~
../../hw/arm/smmuv3.c:1104:21: note: shadowed declaration is here
 1104 |     dma_addr_t end, addr = CMD_ADDR(cmd);
      |                     ^~~~

so convert it too.

CD_TTB has neither problem, but it is the only other macro in
the file that uses this pattern, so we convert it also for
consistency's sake.

We use extract64() rather than extract32() to avoid having
to explicitly cast the result to uint64_t.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230922152944.3583438-5-peter.maydell@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Avoid shadowing a variable in smmuv3_notify_iova():

../../hw/arm/smmuv3.c: In function ‘smmuv3_notify_iova’:
../../hw/arm/smmuv3.c:1043:23: warning: declaration of ‘event’ shadows a previous local [-Wshadow=local]
 1043 |         SMMUEventInfo event = {.inval_ste_allowed = true};
      |                       ^~~~~
../../hw/arm/smmuv3.c:1038:19: note: shadowed declaration is here
 1038 |     IOMMUTLBEvent event;
      |                   ^~~~~

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230922152944.3583438-4-peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Avoid shadowing a local variable in arm_sysctl_write():

../../hw/misc/arm_sysctl.c: In function ‘arm_sysctl_write’:
../../hw/misc/arm_sysctl.c:537:26: warning: declaration of ‘val’ shadows a parameter [-Wshadow=local]
  537 |                 uint32_t val;
      |                          ^~~
../../hw/misc/arm_sysctl.c:388:39: note: shadowed declaration is here
  388 |                              uint64_t val, unsigned size)
      |                              ~~~~~~~~~^~~

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230922152944.3583438-3-peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Avoid shadowing a local variable in do_process_its_cmd():

../../hw/intc/arm_gicv3_its.c:548:17: warning: declaration of ‘ite’ shadows a previous local [-Wshadow=compatible-local]
  548 |         ITEntry ite = {};
      |                 ^~~
../../hw/intc/arm_gicv3_its.c:518:13: note: shadowed declaration is here
  518 |     ITEntry ite;
      |             ^~~

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230922152944.3583438-2-peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Code changes in acpi that addresses all compiler complaints coming from enabling
-Wshadow flags. Enabling -Wshadow catches cases of local variables shadowing
other local variables or parameters. These makes the code confusing and/or adds
bugs that are difficult to catch.  See also

    Subject: Help wanted for enabling -Wshadow=local
    Message-Id: <87r0mqlf9x.fsf@pond.sub.org>
    https://lore.kernel.org/qemu-devel/87r0mqlf9x.fsf@pond.sub.org



The code is tested to build with and without the flag turned on.

CC: Markus Armbruster <armbru@redhat.com>
CC: Philippe Mathieu-Daude <philmd@linaro.org>
CC: mst@redhat.com
CC: imammedo@redhat.com
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Message-ID: <20230922124203.127110-1-anisinha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fixes build with -Wshadow=local

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-ID: <20230922105742.81317-1-berto@igalia.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Rename 'name' variable to avoid this warning :

  ../hw/ppc/spapr_drc.c: In function ‘prop_get_fdt’:
  ../hw/ppc/spapr_drc.c:344:21: warning: declaration of ‘name’ shadows a parameter [-Wshadow=compatible-local]
    344 |         const char *name = NULL;
        |                     ^~~~
  ../hw/ppc/spapr_drc.c:325:63: note: shadowed declaration is here
    325 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name,
        |                                                   ~~~~~~~~~~~~^~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-9-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Rename SysBusDevice variable to avoid this warning :

  ../hw/ppc/spapr_pci.c: In function ‘spapr_phb_realize’:
  ../hw/ppc/spapr_pci.c:1872:24: warning: declaration of ‘s’ shadows a previous local [-Wshadow=local]
   1872 |         SpaprPhbState *s;
        |                        ^
  ../hw/ppc/spapr_pci.c:1829:19: note: shadowed declaration is here
   1829 |     SysBusDevice *s = SYS_BUS_DEVICE(dev);
        |                   ^

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-8-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Remove extra 'drc_index' variable to avoid this warning :

  ../hw/ppc/spapr_drc.c: In function ‘rtas_ibm_configure_connector’:
  ../hw/ppc/spapr_drc.c:1240:26: warning: declaration of ‘drc_index’ shadows a previous local [-Wshadow=compatible-local]
   1240 |                 uint32_t drc_index = spapr_drc_index(drc);
        |                          ^~~~~~~~~
  ../hw/ppc/spapr_drc.c:1155:14: note: shadowed declaration is here
   1155 |     uint32_t drc_index;
        |              ^~~~~~~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-7-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Rename PCIDevice variable to avoid this warning :

  ../hw/ppc/spapr.c: In function ‘spapr_get_fw_dev_path’:
  ../hw/ppc/spapr.c:3217:20: warning: declaration of ‘pcidev’ shadows a previous local [-Wshadow=compatible-local]
   3217 |         PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE);
        |                    ^~~~~~
  ../hw/ppc/spapr.c:3147:16: note: shadowed declaration is here
   3147 |     PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE);
        |                ^~~~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-6-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Remove extra 'i' variable to fix this warning :

  ../hw/ppc/spapr.c: In function ‘spapr_init_cpus’:
  ../hw/ppc/spapr.c:2668:13: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
   2668 |         int i;
        |             ^
  ../hw/ppc/spapr.c:2645:9: note: shadowed declaration is here
   2645 |     int i;
        |         ^

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-5-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Introduce a helper routine defining one CPU device node to fix this
warning :

  ../hw/ppc/spapr.c: In function ‘spapr_dt_cpus’:
  ../hw/ppc/spapr.c:812:19: warning: declaration of ‘cs’ shadows a previous local [-Wshadow=compatible-local]
    812 |         CPUState *cs = rev[i];
        |                   ^~
  ../hw/ppc/spapr.c:786:15: note: shadowed declaration is here
    786 |     CPUState *cs;
        |               ^~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-4-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

to fix :

  ../hw/ppc/pnv_psi.c: In function ‘pnv_psi_p9_mmio_write’:
  ../hw/ppc/pnv_psi.c:741:24: warning: declaration of ‘addr’ shadows a parameter [-Wshadow=compatible-local]
    741 |                 hwaddr addr = val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K);
        |                        ^~~~
  ../hw/ppc/pnv_psi.c:702:56: note: shadowed declaration is here
    702 | static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
        |                                                 ~~~~~~~^~~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-3-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

this fixes numerous warnings of this type :

  In file included from ../hw/ppc/spapr_pci.c:43:
  ../hw/ppc/spapr_pci.c: In function ‘spapr_dt_phb’:
  ../include/hw/ppc/fdt.h:18:13: warning: declaration of ‘ret’ shadows a previous local [-Wshadow=compatible-local]
     18 |         int ret = (exp);                                           \
        |             ^~~
  ../hw/ppc/spapr_pci.c:2355:5: note: in expansion of macro ‘_FDT’
   2355 |     _FDT(bus_off = fdt_add_subnode(fdt, 0, phb->dtbusname));
        |     ^~~~
  ../hw/ppc/spapr_pci.c:2311:24: note: shadowed declaration is here
   2311 |     int bus_off, i, j, ret;
        |                        ^~~

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-2-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/intc/openpic.c: In function ‘openpic_gbl_write’:
  hw/intc/openpic.c:614:17: warning: declaration of ‘idx’ shadows a previous local [-Wshadow=compatible-local]
    614 |             int idx;
        |                 ^~~
  hw/intc/openpic.c:568:9: note: shadowed declaration is here
    568 |     int idx;
        |         ^~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904162824.85385-3-philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/core/machine.c: In function ‘machine_initfn’:
  hw/core/machine.c:1081:17: warning: declaration of ‘obj’ shadows a parameter [-Wshadow=compatible-local]
   1081 |         Object *obj = OBJECT(ms);
        |                 ^~~
  hw/core/machine.c:1065:36: note: shadowed declaration is here
   1065 | static void machine_initfn(Object *obj)
        |                            ~~~~~~~~^~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904162824.85385-2-philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  softmmu/physmem.c: In function ‘cpu_physical_memory_snapshot_and_clear_dirty’:
  softmmu/physmem.c:916:27: warning: declaration of ‘offset’ shadows a parameter [-Wshadow=compatible-local]
    916 |             unsigned long offset = page % DIRTY_MEMORY_BLOCK_SIZE;
        |                           ^~~~~~
  softmmu/physmem.c:892:31: note: shadowed declaration is here
    892 |     (MemoryRegion *mr, hwaddr offset, hwaddr length, unsigned client)
        |                        ~~~~~~~^~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-23-philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  softmmu/memory.c: In function ‘mtree_print_mr’:
  softmmu/memory.c:3236:27: warning: declaration of ‘ml’ shadows a previous local [-Wshadow=compatible-local]
   3236 |         MemoryRegionList *ml;
        |                           ^~
  softmmu/memory.c:3213:32: note: shadowed declaration is here
   3213 |     MemoryRegionList *new_ml, *ml, *next_ml;
        |                                ^~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-22-philmd@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/mips/boston.c:472:5: error: declaration shadows a local variable [-Werror,-Wshadow]
    qemu_fdt_setprop_cells(fdt, name, "reg", reg_base, reg_size);
    ^
  include/sysemu/device_tree.h:129:13: note: expanded from macro 'qemu_fdt_setprop_cells'
        int i;
            ^
  hw/mips/boston.c:461:9: note: previous declaration is here
    int i;
        ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-21-philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  linux-user/strace.c: In function ‘print_sockaddr’:
  linux-user/strace.c:370:17: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
    370 |             int i;
        |                 ^
  linux-user/strace.c:361:9: note: shadowed declaration is here
    361 |     int i;
        |         ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-20-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  util/vhost-user-server.c: In function ‘set_watch’:
  util/vhost-user-server.c:274:20: warning: declaration of ‘vu_fd_watch’ shadows a previous local [-Wshadow=compatible-local]
    274 |         VuFdWatch *vu_fd_watch = g_new0(VuFdWatch, 1);
        |                    ^~~~~~~~~~~
  util/vhost-user-server.c:271:16: note: shadowed declaration is here
    271 |     VuFdWatch *vu_fd_watch = find_vu_fd_watch(server, fd);
        |                ^~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-18-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  In file included from crypto/cipher.c:140:
  crypto/cipher-gnutls.c.inc: In function ‘qcrypto_gnutls_cipher_encrypt’:
  crypto/cipher-gnutls.c.inc:116:17: warning: declaration of ‘err’ shadows a previous local [-Wshadow=compatible-local]
    116 |             int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL);
        |                 ^~~
  crypto/cipher-gnutls.c.inc:94:9: note: shadowed declaration is here
     94 |     int err;
        |         ^~~
       ---

  crypto/cipher-gnutls.c.inc: In function ‘qcrypto_gnutls_cipher_decrypt’:
  crypto/cipher-gnutls.c.inc:177:17: warning: declaration of ‘err’ shadows a previous local [-Wshadow=compatible-local]
    177 |             int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL);
        |                 ^~~
  crypto/cipher-gnutls.c.inc:154:9: note: shadowed declaration is here
    154 |     int err;
        |         ^~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-17-philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  net/eth.c:435:20: error: declaration shadows a local variable [-Werror,-Wshadow]
            size_t input_size = iov_size(pkt, pkt_frags);
                   ^
  net/eth.c:413:16: note: previous declaration is here
        size_t input_size = iov_size(pkt, pkt_frags);
               ^

Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-16-philmd@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/nios2/10m50_devboard.c: In function ‘nios2_10m50_ghrd_init’:
  hw/nios2/10m50_devboard.c:101:22: warning: declaration of ‘dev’ shadows a previous local [-Wshadow=compatible-local]
    101 |         DeviceState *dev = qdev_new(TYPE_NIOS2_VIC);
        |                      ^~~
  hw/nios2/10m50_devboard.c:60:18: note: shadowed declaration is here
     60 |     DeviceState *dev;
        |                  ^~~

  hw/nios2/10m50_devboard.c:110:18: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
    110 |         for (int i = 0; i < 32; i++) {
        |                  ^
  hw/nios2/10m50_devboard.c:67:9: note: shadowed declaration is here
     67 |     int i;
        |         ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-15-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/microblaze/petalogix_ml605_mmu.c: In function ‘petalogix_ml605_init’:
  hw/microblaze/petalogix_ml605_mmu.c:186:24: warning: declaration of ‘dinfo’ shadows a previous local [-Wshadow=compatible-local]
    186 |             DriveInfo *dinfo = drive_get(IF_MTD, 0, i);
        |                        ^~~~~
  hw/microblaze/petalogix_ml605_mmu.c:78:16: note: shadowed declaration is here
     78 |     DriveInfo *dinfo;
        |                ^~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-14-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/m68k/virt.c:263:13: error: declaration shadows a local variable [-Werror,-Wshadow]
            BOOTINFOSTR(param_ptr, BI_COMMAND_LINE,
            ^
  hw/m68k/bootinfo.h:47:13: note: expanded from macro 'BOOTINFOSTR'
        int i; \
            ^
  hw/m68k/virt.c:130:9: note: previous declaration is here
    int i;
        ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-13-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/arm/allwinner-r40.c:412:14: error: declaration shadows a local variable [-Werror,-Wshadow]
    for (int i = 0; i < AW_R40_NUM_MMCS; i++) {
             ^
  hw/arm/allwinner-r40.c:299:14: note: previous declaration is here
    unsigned i;
             ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230904161235.84651-10-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

Fix:

  hw/arm/virt.c:821:22: error: declaration shadows a local variable [-Werror,-Wshadow]
            qemu_irq irq = qdev_get_gpio_in(vms->gic,
                     ^
  hw/arm/virt.c:803:13: note: previous declaration is here
        int irq;
            ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20230904161235.84651-9-philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>