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X-Received-From: 2a00:1450:4864:20::331 Subject: [Qemu-devel] [PULL v2 22/31] lsi: use ldn_le_p()/stn_le_p() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sven Schnelle Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Sven Schnelle Instead of using the open-coded versions, use the helper already present as this makes the code easier to read and less error-prone. Signed-off-by: Sven Schnelle Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20190305195519.24303-2-svens@stackframe.org> --- hw/scsi/lsi53c895a.c | 24 ++++-------------------- 1 file changed, 4 insertions(+), 20 deletions(-) diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c index bcff859..402b785 100644 --- a/hw/scsi/lsi53c895a.c +++ b/hw/scsi/lsi53c895a.c @@ -289,8 +289,7 @@ typedef struct { uint8_t sbr; uint32_t adder; =20 - /* Script ram is stored as 32-bit words in host byteorder. */ - uint32_t script_ram[2048]; + uint8_t script_ram[2048 * sizeof(uint32_t)]; } LSIState; =20 #define TYPE_LSI53C810 "lsi53c810" @@ -2079,29 +2078,14 @@ static void lsi_ram_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { LSIState *s =3D opaque; - uint32_t newval; - uint32_t mask; - int shift; - - newval =3D s->script_ram[addr >> 2]; - shift =3D (addr & 3) * 8; - mask =3D ((uint64_t)1 << (size * 8)) - 1; - newval &=3D ~(mask << shift); - newval |=3D val << shift; - s->script_ram[addr >> 2] =3D newval; + stn_le_p(s->script_ram + addr, size, val); } =20 static uint64_t lsi_ram_read(void *opaque, hwaddr addr, unsigned size) { LSIState *s =3D opaque; - uint32_t val; - uint32_t mask; - - val =3D s->script_ram[addr >> 2]; - mask =3D ((uint64_t)1 << (size * 8)) - 1; - val >>=3D (addr & 3) * 8; - return val & mask; + return ldn_le_p(s->script_ram + addr, size); } =20 static const MemoryRegionOps lsi_ram_ops =3D { @@ -2244,7 +2228,7 @@ static const VMStateDescription vmstate_lsi_scsi =3D { VMSTATE_BUFFER_UNSAFE(scratch, LSIState, 0, 18 * sizeof(uint32_t)), VMSTATE_UINT8(sbr, LSIState), =20 - VMSTATE_BUFFER_UNSAFE(script_ram, LSIState, 0, 2048 * sizeof(uint3= 2_t)), + VMSTATE_BUFFER_UNSAFE(script_ram, LSIState, 0, 8192), VMSTATE_END_OF_LIST() } }; --=20 1.8.3.1