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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: Markus Armbruster <armbru@redhat.com>, qemu-devel@nongnu.org
Cc: qemu-block@nongnu.org, qemu-arm@nongnu.org,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Peter Xu" <peterx@redhat.com>,
	"David Hildenbrand" <david@redhat.com>
Subject: [RFC PATCH v2 22/22] softmmu/physmem: Clean up local variable shadowing
Date: Mon,  4 Sep 2023 18:12:34 +0200	[thread overview]
Message-ID: <20230904161235.84651-23-philmd@linaro.org> (raw)
In-Reply-To: <20230904161235.84651-1-philmd@linaro.org>

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>
---
RFC: Please double-check how 'offset' is used few lines later.
---
 softmmu/physmem.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 18277ddd67..db5b628a60 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -913,16 +913,16 @@ DirtyBitmapSnapshot *cpu_physical_memory_snapshot_and_clear_dirty
 
         while (page < end) {
             unsigned long idx = page / DIRTY_MEMORY_BLOCK_SIZE;
-            unsigned long offset = page % DIRTY_MEMORY_BLOCK_SIZE;
+            unsigned long ofs = page % DIRTY_MEMORY_BLOCK_SIZE;
             unsigned long num = MIN(end - page,
-                                    DIRTY_MEMORY_BLOCK_SIZE - offset);
+                                    DIRTY_MEMORY_BLOCK_SIZE - ofs);
 
-            assert(QEMU_IS_ALIGNED(offset, (1 << BITS_PER_LEVEL)));
+            assert(QEMU_IS_ALIGNED(ofs, (1 << BITS_PER_LEVEL)));
             assert(QEMU_IS_ALIGNED(num,    (1 << BITS_PER_LEVEL)));
-            offset >>= BITS_PER_LEVEL;
+            ofs >>= BITS_PER_LEVEL;
 
             bitmap_copy_and_clear_atomic(snap->dirty + dest,
-                                         blocks->blocks[idx] + offset,
+                                         blocks->blocks[idx] + ofs,
                                          num);
             page += num;
             dest += num >> BITS_PER_LEVEL;
-- 
2.41.0



  parent reply	other threads:[~2023-09-04 16:15 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-04 16:12 [PATCH v2 00/22] (few more) Steps towards enabling -Wshadow Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 01/22] tcg: Clean up local variable shadowing Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 02/22] target/arm/tcg: " Philippe Mathieu-Daudé
2023-09-08 12:25   ` Peter Maydell
2023-09-04 16:12 ` [PATCH v2 03/22] target/arm/hvf: " Philippe Mathieu-Daudé
2023-09-08 12:26   ` Peter Maydell
2023-09-04 16:12 ` [PATCH v2 04/22] target/mips: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 05/22] target/m68k: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 06/22] target/tricore: " Philippe Mathieu-Daudé
2023-09-05  5:34   ` Bastian Koppelmann
2023-09-04 16:12 ` [PATCH v2 07/22] hw/arm/armv7m: " Philippe Mathieu-Daudé
2023-09-08 12:29   ` Peter Maydell
2023-09-04 16:12 ` [PATCH v2 08/22] hw/arm/virt: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 09/22] hw/arm/allwinner: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 10/22] hw/arm/aspeed: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 11/22] hw/ide/ahci: " Philippe Mathieu-Daudé
2023-09-29  5:07   ` Markus Armbruster
2023-09-04 16:12 ` [PATCH v2 12/22] hw/m68k: " Philippe Mathieu-Daudé
2023-09-26 16:28   ` Thomas Huth
2023-09-04 16:12 ` [PATCH v2 13/22] hw/microblaze: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 14/22] hw/nios2: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 15/22] net/eth: " Philippe Mathieu-Daudé
2023-09-08 13:18   ` Eric Blake
2023-09-10  4:20   ` Akihiko Odaki
2023-09-04 16:12 ` [PATCH v2 16/22] crypto/cipher-gnutls.c: " Philippe Mathieu-Daudé
2023-09-04 16:27   ` Daniel P. Berrangé
2023-09-04 16:29     ` Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 17/22] util/vhost-user-server: " Philippe Mathieu-Daudé
2023-09-22 10:23   ` Michael S. Tsirkin
2023-09-04 16:12 ` [PATCH v2 18/22] semihosting/arm-compat: " Philippe Mathieu-Daudé
2023-09-08 12:36   ` Peter Maydell
2023-10-04  9:41     ` Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 19/22] linux-user/strace: " Philippe Mathieu-Daudé
2023-09-04 16:12 ` [PATCH v2 20/22] sysemu/device_tree: " Philippe Mathieu-Daudé
2023-09-29  4:58   ` Markus Armbruster
2023-09-04 16:12 ` [PATCH v2 21/22] softmmu/memory: " Philippe Mathieu-Daudé
2023-09-05 15:46   ` Peter Xu
2023-09-04 16:12 ` Philippe Mathieu-Daudé [this message]
2023-09-04 16:31   ` [RFC PATCH v2 22/22] softmmu/physmem: " Daniel P. Berrangé
2023-09-05 15:50     ` Peter Xu
2023-09-29  5:13 ` [PATCH v2 00/22] (few more) Steps towards enabling -Wshadow Markus Armbruster
2023-09-29  6:42   ` Markus Armbruster

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