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-rw-r--r--hw/arm/smmu-common.c3
-rw-r--r--hw/arm/smmuv3.c10
-rw-r--r--hw/sd/sdhci.c15
-rw-r--r--scripts/coccinelle/exec_rw_const.cocci23
4 files changed, 33 insertions, 18 deletions
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 23eb117041..0f2573f004 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -74,8 +74,7 @@ static int get_pte(dma_addr_t baseaddr, uint32_t index, uint64_t *pte,
dma_addr_t addr = baseaddr + index * sizeof(*pte);
/* TODO: guarantee 64-bit single-copy atomicity */
- ret = dma_memory_read(&address_space_memory, addr,
- (uint8_t *)pte, sizeof(*pte));
+ ret = dma_memory_read(&address_space_memory, addr, pte, sizeof(*pte));
if (ret != MEMTX_OK) {
info->type = SMMU_PTW_ERR_WALK_EABT;
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 8b5f157dc7..57a79df55b 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -279,8 +279,7 @@ static int smmu_get_ste(SMMUv3State *s, dma_addr_t addr, STE *buf,
trace_smmuv3_get_ste(addr);
/* TODO: guarantee 64-bit single-copy atomicity */
- ret = dma_memory_read(&address_space_memory, addr,
- (void *)buf, sizeof(*buf));
+ ret = dma_memory_read(&address_space_memory, addr, buf, sizeof(*buf));
if (ret != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR,
"Cannot fetch pte at address=0x%"PRIx64"\n", addr);
@@ -301,8 +300,7 @@ static int smmu_get_cd(SMMUv3State *s, STE *ste, uint32_t ssid,
trace_smmuv3_get_cd(addr);
/* TODO: guarantee 64-bit single-copy atomicity */
- ret = dma_memory_read(&address_space_memory, addr,
- (void *)buf, sizeof(*buf));
+ ret = dma_memory_read(&address_space_memory, addr, buf, sizeof(*buf));
if (ret != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR,
"Cannot fetch pte at address=0x%"PRIx64"\n", addr);
@@ -406,8 +404,8 @@ static int smmu_find_ste(SMMUv3State *s, uint32_t sid, STE *ste,
l2_ste_offset = sid & ((1 << s->sid_split) - 1);
l1ptr = (dma_addr_t)(strtab_base + l1_ste_offset * sizeof(l1std));
/* TODO: guarantee 64-bit single-copy atomicity */
- ret = dma_memory_read(&address_space_memory, l1ptr,
- (uint8_t *)&l1std, sizeof(l1std));
+ ret = dma_memory_read(&address_space_memory, l1ptr, &l1std,
+ sizeof(l1std));
if (ret != MEMTX_OK) {
qemu_log_mask(LOG_GUEST_ERROR,
"Could not read L1PTR at 0X%"PRIx64"\n", l1ptr);
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 69dc3e6b90..de63ffb037 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -701,8 +701,7 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
hwaddr entry_addr = (hwaddr)s->admasysaddr;
switch (SDHC_DMA_TYPE(s->hostctl1)) {
case SDHC_CTRL_ADMA2_32:
- dma_memory_read(s->dma_as, entry_addr, (uint8_t *)&adma2,
- sizeof(adma2));
+ dma_memory_read(s->dma_as, entry_addr, &adma2, sizeof(adma2));
adma2 = le64_to_cpu(adma2);
/* The spec does not specify endianness of descriptor table.
* We currently assume that it is LE.
@@ -713,8 +712,7 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
dscr->incr = 8;
break;
case SDHC_CTRL_ADMA1_32:
- dma_memory_read(s->dma_as, entry_addr, (uint8_t *)&adma1,
- sizeof(adma1));
+ dma_memory_read(s->dma_as, entry_addr, &adma1, sizeof(adma1));
adma1 = le32_to_cpu(adma1);
dscr->addr = (hwaddr)(adma1 & 0xFFFFF000);
dscr->attr = (uint8_t)extract32(adma1, 0, 7);
@@ -726,13 +724,10 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
}
break;
case SDHC_CTRL_ADMA2_64:
- dma_memory_read(s->dma_as, entry_addr,
- (uint8_t *)(&dscr->attr), 1);
- dma_memory_read(s->dma_as, entry_addr + 2,
- (uint8_t *)(&dscr->length), 2);
+ dma_memory_read(s->dma_as, entry_addr, &dscr->attr, 1);
+ dma_memory_read(s->dma_as, entry_addr + 2, &dscr->length, 2);
dscr->length = le16_to_cpu(dscr->length);
- dma_memory_read(s->dma_as, entry_addr + 4,
- (uint8_t *)(&dscr->addr), 8);
+ dma_memory_read(s->dma_as, entry_addr + 4, &dscr->addr, 8);
dscr->addr = le64_to_cpu(dscr->addr);
dscr->attr &= (uint8_t) ~0xC0;
dscr->incr = 12;
diff --git a/scripts/coccinelle/exec_rw_const.cocci b/scripts/coccinelle/exec_rw_const.cocci
new file mode 100644
index 0000000000..7e42682240
--- /dev/null
+++ b/scripts/coccinelle/exec_rw_const.cocci
@@ -0,0 +1,23 @@
+/*
+ Usage:
+
+ spatch \
+ --macro-file scripts/cocci-macro-file.h \
+ --sp-file scripts/coccinelle/exec_rw_const.cocci \
+ --keep-comments \
+ --in-place \
+ --dir .
+*/
+
+// Remove useless cast
+@@
+expression E1, E2, E3, E4;
+type T;
+@@
+(
+- dma_memory_read(E1, E2, (T *)(E3), E4)
++ dma_memory_read(E1, E2, E3, E4)
+|
+- dma_memory_write(E1, E2, (T *)(E3), E4)
++ dma_memory_write(E1, E2, E3, E4)
+)