Merge tag 'i3c/for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "Mostly non urgent fixes and a few improvements (including runtime pm
  suport) to the Silvaco driver"

* tag 'i3c/for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: dw: check return of dw_i3c_master_get_free_pos()
  i3c: master: mipi-i3c-hci: correct the config reference for endianness
  i3c: master: svc: enable the interrupt in the enable ibi function
  i3c: master: svc: add the missing module device table
  i3c: master: svc: add runtime pm support
  i3c: master: svc: set ODSTOP to let I2C device see the STOP signal
  i3c: master: svc: add support for slave to stop returning data
  i3c: master: svc: separate err, fifo and disable interrupt of reset function
  i3c: master: svc: fix atomic issue
  i3c: master: svc: move module reset behind clk enable
  i3c/master/mipi-i3c-hci: Fix a potentially infinite loop in 'hci_dat_v1_get_index()'
  i3c: fix incorrect address slot lookup on 64-bit
  i3c/master/mipi-i3c-hci: Prefer kcalloc over open coded arithmetic
  i3c/master/mipi-i3c-hci: Prefer struct_size over open coded arithmetic

Author: torvalds

drivers/i3c/master.c

@@ -343,7 +343,8 @@ struct bus_type i3c_bus_type = {
 static enum i3c_addr_slot_status
 i3c_bus_get_addr_slot_status(struct i3c_bus *bus, u16 addr)
 {
-	int status, bitpos = addr * 2;
+	unsigned long status;
+	int bitpos = addr * 2;
 
 	if (addr > I2C_MAX_ADDR)
 		return I3C_ADDR_SLOT_RSVD;

drivers/i3c/master/dw-i3c-master.c

@@ -793,6 +793,10 @@ static int dw_i3c_master_daa(struct i3c_master_controller *m)
 		return -ENOMEM;
 
 	pos = dw_i3c_master_get_free_pos(master);
+	if (pos < 0) {
+		dw_i3c_master_free_xfer(xfer);
+		return pos;
+	}
 	cmd = &xfer->cmds[0];
 	cmd->cmd_hi = 0x1;
 	cmd->cmd_lo = COMMAND_PORT_DEV_COUNT(master->maxdevs - pos) |

drivers/i3c/master/mipi-i3c-hci/core.c

@@ -662,7 +662,7 @@ static int i3c_hci_init(struct i3c_hci *hci)
 
 	/* Make sure our data ordering fits the host's */
 	regval = reg_read(HC_CONTROL);
-	if (IS_ENABLED(CONFIG_BIG_ENDIAN)) {
+	if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) {
 		if (!(regval & HC_CONTROL_DATA_BIG_ENDIAN)) {
 			regval |= HC_CONTROL_DATA_BIG_ENDIAN;
 			reg_write(HC_CONTROL, regval);

drivers/i3c/master/mipi-i3c-hci/dat_v1.c

@@ -160,9 +160,7 @@ static int hci_dat_v1_get_index(struct i3c_hci *hci, u8 dev_addr)
 	unsigned int dat_idx;
 	u32 dat_w0;
 
-	for (dat_idx = find_first_bit(hci->DAT_data, hci->DAT_entries);
-	     dat_idx < hci->DAT_entries;
-	     dat_idx = find_next_bit(hci->DAT_data, hci->DAT_entries, dat_idx)) {
+	for_each_set_bit(dat_idx, hci->DAT_data, hci->DAT_entries) {
 		dat_w0 = dat_w0_read(dat_idx);
 		if (FIELD_GET(DAT_0_DYNAMIC_ADDRESS, dat_w0) == dev_addr)
 			return dat_idx;

drivers/i3c/master/mipi-i3c-hci/dma.c

@@ -223,7 +223,7 @@ static int hci_dma_init(struct i3c_hci *hci)
 	}
 	if (nr_rings > XFER_RINGS)
 		nr_rings = XFER_RINGS;
-	rings = kzalloc(sizeof(*rings) + nr_rings * sizeof(*rh), GFP_KERNEL);
+	rings = kzalloc(struct_size(rings, headers, nr_rings), GFP_KERNEL);
 	if (!rings)
 		return -ENOMEM;
 	hci->io_data = rings;

drivers/i3c/master/mipi-i3c-hci/hci.h

@@ -98,7 +98,7 @@ struct hci_xfer {
 
 static inline struct hci_xfer *hci_alloc_xfer(unsigned int n)
 {
-	return kzalloc(sizeof(struct hci_xfer) * n, GFP_KERNEL);
+	return kcalloc(n, sizeof(struct hci_xfer), GFP_KERNEL);
 }
 
 static inline void hci_free_xfer(struct hci_xfer *xfer, unsigned int n)