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* [PATCH] hw: Use QEMU_IS_ALIGNED() on parallel flash block size
@ 2020-05-11 20:52 Philippe Mathieu-Daudé
  2020-05-12 14:54 ` Alistair Francis
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Philippe Mathieu-Daudé @ 2020-05-11 20:52 UTC (permalink / raw)
  To: qemu-devel
  Cc: Kevin Wolf, Peter Maydell, Radoslaw Biernacki, qemu-riscv,
	qemu-block, Sagar Karandikar, Michael S. Tsirkin,
	Bastian Koppelmann, Eduardo Habkost, Max Reitz, qemu-arm,
	Alistair Francis, Paolo Bonzini, Palmer Dabbelt, Leif Lindholm,
	Philippe Mathieu-Daudé, Richard Henderson

Use the QEMU_IS_ALIGNED() macro to verify the flash block size
is properly aligned. It is quicker to process when reviewing.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/arm/sbsa-ref.c       | 2 +-
 hw/arm/virt.c           | 2 +-
 hw/block/pflash_cfi01.c | 2 +-
 hw/block/pflash_cfi02.c | 2 +-
 hw/i386/pc_sysfw.c      | 2 +-
 hw/riscv/virt.c         | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index 8409ba853d..b379e4a76a 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -241,7 +241,7 @@ static void sbsa_flash_map1(PFlashCFI01 *flash,
 {
     DeviceState *dev = DEVICE(flash);
 
-    assert(size % SBSA_FLASH_SECTOR_SIZE == 0);
+    assert(QEMU_IS_ALIGNED(size, SBSA_FLASH_SECTOR_SIZE));
     assert(size / SBSA_FLASH_SECTOR_SIZE <= UINT32_MAX);
     qdev_prop_set_uint32(dev, "num-blocks", size / SBSA_FLASH_SECTOR_SIZE);
     qdev_init_nofail(dev);
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 634db0cfe9..0a99fddb3d 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -978,7 +978,7 @@ static void virt_flash_map1(PFlashCFI01 *flash,
 {
     DeviceState *dev = DEVICE(flash);
 
-    assert(size % VIRT_FLASH_SECTOR_SIZE == 0);
+    assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE));
     assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX);
     qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE);
     qdev_init_nofail(dev);
diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index f586bac269..11922c0f96 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -964,7 +964,7 @@ PFlashCFI01 *pflash_cfi01_register(hwaddr base,
     if (blk) {
         qdev_prop_set_drive(dev, "drive", blk, &error_abort);
     }
-    assert(size % sector_len == 0);
+    assert(QEMU_IS_ALIGNED(size, sector_len));
     qdev_prop_set_uint32(dev, "num-blocks", size / sector_len);
     qdev_prop_set_uint64(dev, "sector-length", sector_len);
     qdev_prop_set_uint8(dev, "width", bank_width);
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index c6b6f2d082..895f7daee3 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -1003,7 +1003,7 @@ PFlashCFI02 *pflash_cfi02_register(hwaddr base,
     if (blk) {
         qdev_prop_set_drive(dev, "drive", blk, &error_abort);
     }
-    assert(size % sector_len == 0);
+    assert(QEMU_IS_ALIGNED(size, sector_len));
     qdev_prop_set_uint32(dev, "num-blocks", size / sector_len);
     qdev_prop_set_uint32(dev, "sector-length", sector_len);
     qdev_prop_set_uint8(dev, "width", width);
diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
index f5f3f466b0..fad41f0e73 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -168,7 +168,7 @@ static void pc_system_flash_map(PCMachineState *pcms,
                          blk_name(blk), strerror(-size));
             exit(1);
         }
-        if (size == 0 || size % FLASH_SECTOR_SIZE != 0) {
+        if (size == 0 || !QEMU_IS_ALIGNED(size, FLASH_SECTOR_SIZE)) {
             error_report("system firmware block device %s has invalid size "
                          "%" PRId64,
                          blk_name(blk), size);
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index daae3ebdbb..71481d59c2 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -112,7 +112,7 @@ static void virt_flash_map1(PFlashCFI01 *flash,
 {
     DeviceState *dev = DEVICE(flash);
 
-    assert(size % VIRT_FLASH_SECTOR_SIZE == 0);
+    assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE));
     assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX);
     qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE);
     qdev_init_nofail(dev);
-- 
2.21.3



^ permalink raw reply related	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-05-18 13:48 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2020-05-11 20:52 [PATCH] hw: Use QEMU_IS_ALIGNED() on parallel flash block size Philippe Mathieu-Daudé
2020-05-12 14:54 ` Alistair Francis
2020-05-18 12:42 ` Peter Maydell
2020-05-18 12:49 ` Paolo Bonzini
2020-05-18 13:46 ` Kevin Wolf

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