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[209.51.188.17]) by mx.google.com with ESMTPS id f46si1630352ede.78.2019.07.03.02.18.56 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 03 Jul 2019 02:18:56 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from localhost ([::1]:34020 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hibPj-0002uV-Be for patch@linaro.org; Wed, 03 Jul 2019 05:18:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55045) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hib2F-0003gb-Nr for qemu-devel@nongnu.org; Wed, 03 Jul 2019 04:54:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hib2D-0003QN-Ve for qemu-devel@nongnu.org; Wed, 03 Jul 2019 04:54:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56038) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hib2A-00036K-6M; Wed, 03 Jul 2019 04:54:34 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C1CF558569; Wed, 3 Jul 2019 08:54:22 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-96.ams2.redhat.com [10.36.116.96]) by smtp.corp.redhat.com (Postfix) with ESMTP id 797E9891D6; Wed, 3 Jul 2019 08:54:17 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 80EC41750B; Wed, 3 Jul 2019 10:54:16 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 3 Jul 2019 10:54:15 +0200 Message-Id: <20190703085416.21837-4-kraxel@redhat.com> In-Reply-To: <20190703085416.21837-1-kraxel@redhat.com> References: <20190703085416.21837-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 03 Jul 2019 08:54:27 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 3/4] hw/i2c/bitbang_i2c: Use in-place rather than malloc'd bitbang_i2c_interface struct X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , "Michael S. Tsirkin" , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Gerd Hoffmann , David Gibson Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Peter Maydell Currently the bitbang_i2c_init() function allocates a bitbang_i2c_interface struct which it returns. This is unfortunate because it means that if the function is used from a DeviceState init method then the memory will be leaked by an "init then delete" cycle, as used by the qmp/hmp commands that list device properties. Since three out of four of the uses of this function are in device init methods, switch the function to do an in-place initialization of a struct that can be embedded in the device state struct of the caller. This fixes LeakSanitizer leak warnings that have appeared in the patchew configuration (which only tries to run the sanitizers for the x86_64-softmmu target) now that we use the bitbang-i2c code in an x86-64 config. Signed-off-by: Peter Maydell Reviewed-by: BALATON Zoltan Tested-by: BALATON Zoltan Acked-by: David Gibson Reviewed-by: Philippe Mathieu-Daudé Message-id: 20190702163844.20458-1-peter.maydell@linaro.org Signed-off-by: Gerd Hoffmann --- hw/display/ati_int.h | 2 +- include/hw/i2c/bitbang_i2c.h | 38 ++++++++++++++++++++++++++++- include/hw/i2c/ppc4xx_i2c.h | 2 +- hw/display/ati.c | 7 +++--- hw/i2c/bitbang_i2c.c | 47 +++--------------------------------- hw/i2c/ppc4xx_i2c.c | 6 ++--- hw/i2c/versatile_i2c.c | 8 +++--- 7 files changed, 53 insertions(+), 57 deletions(-) -- 2.18.1 diff --git a/hw/display/ati_int.h b/hw/display/ati_int.h index 9b67d0022ad9..31a1927b3ecb 100644 --- a/hw/display/ati_int.h +++ b/hw/display/ati_int.h @@ -88,7 +88,7 @@ typedef struct ATIVGAState { uint16_t cursor_size; uint32_t cursor_offset; QEMUCursor *cursor; - bitbang_i2c_interface *bbi2c; + bitbang_i2c_interface bbi2c; MemoryRegion io; MemoryRegion mm; ATIVGARegs regs; diff --git a/include/hw/i2c/bitbang_i2c.h b/include/hw/i2c/bitbang_i2c.h index 3a7126d5dee8..92334e9016a8 100644 --- a/include/hw/i2c/bitbang_i2c.h +++ b/include/hw/i2c/bitbang_i2c.h @@ -8,7 +8,43 @@ typedef struct bitbang_i2c_interface bitbang_i2c_interface; #define BITBANG_I2C_SDA 0 #define BITBANG_I2C_SCL 1 -bitbang_i2c_interface *bitbang_i2c_init(I2CBus *bus); +typedef enum bitbang_i2c_state { + STOPPED = 0, + SENDING_BIT7, + SENDING_BIT6, + SENDING_BIT5, + SENDING_BIT4, + SENDING_BIT3, + SENDING_BIT2, + SENDING_BIT1, + SENDING_BIT0, + WAITING_FOR_ACK, + RECEIVING_BIT7, + RECEIVING_BIT6, + RECEIVING_BIT5, + RECEIVING_BIT4, + RECEIVING_BIT3, + RECEIVING_BIT2, + RECEIVING_BIT1, + RECEIVING_BIT0, + SENDING_ACK, + SENT_NACK +} bitbang_i2c_state; + +struct bitbang_i2c_interface { + I2CBus *bus; + bitbang_i2c_state state; + int last_data; + int last_clock; + int device_out; + uint8_t buffer; + int current_addr; +}; + +/** + * bitbang_i2c_init: in-place initialize the bitbang_i2c_interface struct + */ +void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus *bus); int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level); #endif diff --git a/include/hw/i2c/ppc4xx_i2c.h b/include/hw/i2c/ppc4xx_i2c.h index 8437bf070b8b..f6f837fbec00 100644 --- a/include/hw/i2c/ppc4xx_i2c.h +++ b/include/hw/i2c/ppc4xx_i2c.h @@ -41,7 +41,7 @@ typedef struct PPC4xxI2CState { I2CBus *bus; qemu_irq irq; MemoryRegion iomem; - bitbang_i2c_interface *bitbang; + bitbang_i2c_interface bitbang; int mdidx; uint8_t mdata[4]; uint8_t lmadr; diff --git a/hw/display/ati.c b/hw/display/ati.c index 0cb117384839..c1d9d1518f4a 100644 --- a/hw/display/ati.c +++ b/hw/display/ati.c @@ -538,7 +538,7 @@ static void ati_mm_write(void *opaque, hwaddr addr, break; case GPIO_DVI_DDC: if (s->dev_id != PCI_DEVICE_ID_ATI_RAGE128_PF) { - s->regs.gpio_dvi_ddc = ati_i2c(s->bbi2c, data, 0); + s->regs.gpio_dvi_ddc = ati_i2c(&s->bbi2c, data, 0); } break; case GPIO_MONID ... GPIO_MONID + 3: @@ -554,7 +554,7 @@ static void ati_mm_write(void *opaque, hwaddr addr, */ if ((s->regs.gpio_monid & BIT(25)) && addr <= GPIO_MONID + 2 && addr + size > GPIO_MONID + 2) { - s->regs.gpio_monid = ati_i2c(s->bbi2c, s->regs.gpio_monid, 1); + s->regs.gpio_monid = ati_i2c(&s->bbi2c, s->regs.gpio_monid, 1); } } break; @@ -856,7 +856,7 @@ static void ati_vga_realize(PCIDevice *dev, Error **errp) /* ddc, edid */ I2CBus *i2cbus = i2c_init_bus(DEVICE(s), "ati-vga.ddc"); - s->bbi2c = bitbang_i2c_init(i2cbus); + bitbang_i2c_init(&s->bbi2c, i2cbus); I2CSlave *i2cddc = I2C_SLAVE(qdev_create(BUS(i2cbus), TYPE_I2CDDC)); i2c_set_slave_address(i2cddc, 0x50); @@ -885,7 +885,6 @@ static void ati_vga_exit(PCIDevice *dev) ATIVGAState *s = ATI_VGA(dev); graphic_console_close(s->vga.con); - g_free(s->bbi2c); } static Property ati_vga_properties[] = { diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index 3cb0509b0200..60c7a9be0bca 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -25,39 +25,6 @@ do { printf("bitbang_i2c: " fmt , ## __VA_ARGS__); } while (0) #define DPRINTF(fmt, ...) do {} while(0) #endif -typedef enum bitbang_i2c_state { - STOPPED = 0, - SENDING_BIT7, - SENDING_BIT6, - SENDING_BIT5, - SENDING_BIT4, - SENDING_BIT3, - SENDING_BIT2, - SENDING_BIT1, - SENDING_BIT0, - WAITING_FOR_ACK, - RECEIVING_BIT7, - RECEIVING_BIT6, - RECEIVING_BIT5, - RECEIVING_BIT4, - RECEIVING_BIT3, - RECEIVING_BIT2, - RECEIVING_BIT1, - RECEIVING_BIT0, - SENDING_ACK, - SENT_NACK -} bitbang_i2c_state; - -struct bitbang_i2c_interface { - I2CBus *bus; - bitbang_i2c_state state; - int last_data; - int last_clock; - int device_out; - uint8_t buffer; - int current_addr; -}; - static void bitbang_i2c_enter_stop(bitbang_i2c_interface *i2c) { DPRINTF("STOP\n"); @@ -184,18 +151,12 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level) abort(); } -bitbang_i2c_interface *bitbang_i2c_init(I2CBus *bus) +void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus *bus) { - bitbang_i2c_interface *s; - - s = g_malloc0(sizeof(bitbang_i2c_interface)); - s->bus = bus; s->last_data = 1; s->last_clock = 1; s->device_out = 1; - - return s; } /* GPIO interface. */ @@ -207,7 +168,7 @@ typedef struct GPIOI2CState { SysBusDevice parent_obj; MemoryRegion dummy_iomem; - bitbang_i2c_interface *bitbang; + bitbang_i2c_interface bitbang; int last_level; qemu_irq out; } GPIOI2CState; @@ -216,7 +177,7 @@ static void bitbang_i2c_gpio_set(void *opaque, int irq, int level) { GPIOI2CState *s = opaque; - level = bitbang_i2c_set(s->bitbang, irq, level); + level = bitbang_i2c_set(&s->bitbang, irq, level); if (level != s->last_level) { s->last_level = level; qemu_set_irq(s->out, level); @@ -234,7 +195,7 @@ static void gpio_i2c_init(Object *obj) sysbus_init_mmio(sbd, &s->dummy_iomem); bus = i2c_init_bus(dev, "i2c"); - s->bitbang = bitbang_i2c_init(bus); + bitbang_i2c_init(&s->bitbang, bus); qdev_init_gpio_in(dev, bitbang_i2c_gpio_set, 2); qdev_init_gpio_out(dev, &s->out, 1); diff --git a/hw/i2c/ppc4xx_i2c.c b/hw/i2c/ppc4xx_i2c.c index 5fb4f86c38f1..462729db4ea7 100644 --- a/hw/i2c/ppc4xx_i2c.c +++ b/hw/i2c/ppc4xx_i2c.c @@ -311,9 +311,9 @@ static void ppc4xx_i2c_writeb(void *opaque, hwaddr addr, uint64_t value, case IIC_DIRECTCNTL: i2c->directcntl = value & (IIC_DIRECTCNTL_SDAC & IIC_DIRECTCNTL_SCLC); i2c->directcntl |= (value & IIC_DIRECTCNTL_SCLC ? 1 : 0); - bitbang_i2c_set(i2c->bitbang, BITBANG_I2C_SCL, + bitbang_i2c_set(&i2c->bitbang, BITBANG_I2C_SCL, i2c->directcntl & IIC_DIRECTCNTL_MSCL); - i2c->directcntl |= bitbang_i2c_set(i2c->bitbang, BITBANG_I2C_SDA, + i2c->directcntl |= bitbang_i2c_set(&i2c->bitbang, BITBANG_I2C_SDA, (value & IIC_DIRECTCNTL_SDAC) != 0) << 1; break; default: @@ -347,7 +347,7 @@ static void ppc4xx_i2c_init(Object *o) sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem); sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq); s->bus = i2c_init_bus(DEVICE(s), "i2c"); - s->bitbang = bitbang_i2c_init(s->bus); + bitbang_i2c_init(&s->bitbang, s->bus); } static void ppc4xx_i2c_class_init(ObjectClass *klass, void *data) diff --git a/hw/i2c/versatile_i2c.c b/hw/i2c/versatile_i2c.c index 24b6e36b6d52..1ac2a6f59a0a 100644 --- a/hw/i2c/versatile_i2c.c +++ b/hw/i2c/versatile_i2c.c @@ -35,7 +35,7 @@ typedef struct VersatileI2CState { SysBusDevice parent_obj; MemoryRegion iomem; - bitbang_i2c_interface *bitbang; + bitbang_i2c_interface bitbang; int out; int in; } VersatileI2CState; @@ -70,8 +70,8 @@ static void versatile_i2c_write(void *opaque, hwaddr offset, qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%x\n", __func__, (int)offset); } - bitbang_i2c_set(s->bitbang, BITBANG_I2C_SCL, (s->out & 1) != 0); - s->in = bitbang_i2c_set(s->bitbang, BITBANG_I2C_SDA, (s->out & 2) != 0); + bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SCL, (s->out & 1) != 0); + s->in = bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SDA, (s->out & 2) != 0); } static const MemoryRegionOps versatile_i2c_ops = { @@ -88,7 +88,7 @@ static void versatile_i2c_init(Object *obj) I2CBus *bus; bus = i2c_init_bus(dev, "i2c"); - s->bitbang = bitbang_i2c_init(bus); + bitbang_i2c_init(&s->bitbang, bus); memory_region_init_io(&s->iomem, obj, &versatile_i2c_ops, s, "versatile_i2c", 0x1000); sysbus_init_mmio(sbd, &s->iomem);