NXP/FSL SoC driver updates for v5.8

DPAA2 DPIO driver
 - Prefer the CPU affined DPIO
 
 QUICC Engine drivers
 - Replace one-element array and use struct_size() helper
 
 Cleanups in various drivers
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Merge tag 'soc-fsl-next-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.8

DPAA2 DPIO driver
- Prefer the CPU affined DPIO

QUICC Engine drivers
- Replace one-element array and use struct_size() helper

Cleanups in various drivers

* tag 'soc-fsl-next-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: dpio: Remove unused inline function qbman_write_eqcr_am_rt_register
  soc: fsl: qe: clean up an indentation issue
  soc: fsl: dpio: Prefer the CPU affine DPIO
  soc: fsl: qbman: Remove unused inline function qm_eqcr_get_ci_stashing
  soc: fsl: qe: Replace one-element array and use struct_size() helper
  treewide: Replace zero-length array with flexible-array

Link: https://lore.kernel.org/r/20200527215740.9279-1-leoyang.li@nxp.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

drivers/soc/fsl/dpio/dpio-service.c

@@ -58,7 +58,7 @@ static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
 	 * If cpu == -1, choose the current cpu, with no guarantees about
 	 * potentially being migrated away.
 	 */
-	if (unlikely(cpu < 0))
+	if (cpu < 0)
 		cpu = smp_processor_id();
 
 	/* If a specific cpu was requested, pick it up immediately */
@@ -70,6 +70,10 @@ static inline struct dpaa2_io *service_select(struct dpaa2_io *d)
 	if (d)
 		return d;
 
+	d = service_select_by_cpu(d, -1);
+	if (d)
+		return d;
+
 	spin_lock(&dpio_list_lock);
 	d = list_entry(dpio_list.next, struct dpaa2_io, node);
 	list_del(&d->node);

drivers/soc/fsl/dpio/qbman-portal.c

@@ -572,18 +572,6 @@ void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
 #define EQAR_VB(eqar)      ((eqar) & 0x80)
 #define EQAR_SUCCESS(eqar) ((eqar) & 0x100)
 
-static inline void qbman_write_eqcr_am_rt_register(struct qbman_swp *p,
-						   u8 idx)
-{
-	if (idx < 16)
-		qbman_write_register(p, QBMAN_CINH_SWP_EQCR_AM_RT + idx * 4,
-				     QMAN_RT_MODE);
-	else
-		qbman_write_register(p, QBMAN_CINH_SWP_EQCR_AM_RT2 +
-				     (idx - 16) * 4,
-				     QMAN_RT_MODE);
-}
-
 #define QB_RT_BIT ((u32)0x100)
 /**
  * qbman_swp_enqueue_direct() - Issue an enqueue command

drivers/soc/fsl/qbman/qman.c

@@ -449,11 +449,6 @@ static inline int qm_eqcr_init(struct qm_portal *portal,
 	return 0;
 }
 
-static inline unsigned int qm_eqcr_get_ci_stashing(struct qm_portal *portal)
-{
-	return (qm_in(portal, QM_REG_CFG) >> 28) & 0x7;
-}
-
 static inline void qm_eqcr_finish(struct qm_portal *portal)
 {
 	struct qm_eqcr *eqcr = &portal->eqcr;

drivers/soc/fsl/qe/qe.c

@@ -448,7 +448,7 @@ int qe_upload_firmware(const struct qe_firmware *firmware)
 	unsigned int i;
 	unsigned int j;
 	u32 crc;
-	size_t calc_size = sizeof(struct qe_firmware);
+	size_t calc_size;
 	size_t length;
 	const struct qe_header *hdr;
 
@@ -480,7 +480,7 @@ int qe_upload_firmware(const struct qe_firmware *firmware)
 	}
 
 	/* Validate the length and check if there's a CRC */
-	calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
+	calc_size = struct_size(firmware, microcode, firmware->count);
 
 	for (i = 0; i < firmware->count; i++)
 		/*

drivers/soc/fsl/qe/ucc.c

@@ -519,7 +519,7 @@ int ucc_set_tdm_rxtx_clk(u32 tdm_num, enum qe_clock clock,
 	int clock_bits;
 	u32 shift;
 	struct qe_mux __iomem *qe_mux_reg;
-	 __be32 __iomem *cmxs1cr;
+	__be32 __iomem *cmxs1cr;
 
 	qe_mux_reg = &qe_immr->qmx;
 

include/linux/fsl/bestcomm/bestcomm.h

@@ -27,7 +27,7 @@
  */
 struct bcom_bd {
 	u32	status;
-	u32	data[0];	/* variable payload size */
+	u32	data[];	/* variable payload size */
 };
 
 /* ======================================================================== */

include/soc/fsl/qe/qe.h

@@ -307,7 +307,7 @@ struct qe_firmware {
 		u8 revision;		/* The microcode version revision */
 		u8 padding;		/* Reserved, for alignment */
 		u8 reserved[4];		/* Reserved, for future expansion */
-	} __attribute__ ((packed)) microcode[1];
+	} __packed microcode[];
 	/* All microcode binaries should be located here */
 	/* CRC32 should be located here, after the microcode binaries */
 } __attribute__ ((packed));