Replace the deprecated pci_alloc_msix_exact() with
pci_alloc_irq_vectors().

Avoid the container_of usage in the interrupt handler
by simply passing the required struct as data to the interrupt
handler.

Signed-off-by: Jan Glauber <[email protected]>
---
 drivers/edac/thunderx_edac.c | 91 ++++++++++++++------------------------------
 1 file changed, 28 insertions(+), 63 deletions(-)

diff --git a/drivers/edac/thunderx_edac.c b/drivers/edac/thunderx_edac.c
index 86d585c..da12804 100644
--- a/drivers/edac/thunderx_edac.c
+++ b/drivers/edac/thunderx_edac.c
@@ -183,7 +183,6 @@ struct lmc_err_ctx {
 struct thunderx_lmc {
        void __iomem *regs;
        struct pci_dev *pdev;
-       struct msix_entry msix_ent;
 
        atomic_t ecc_int;
 
@@ -738,18 +737,17 @@ static int thunderx_lmc_probe(struct pci_dev *pdev,
        mci->scrub_mode = SCRUB_NONE;
 
        lmc->pdev = pdev;
-       lmc->msix_ent.entry = 0;
 
        lmc->ring_head = 0;
        lmc->ring_tail = 0;
 
-       ret = pci_enable_msix_exact(pdev, &lmc->msix_ent, 1);
-       if (ret) {
+       ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
+       if (ret < 0) {
                dev_err(&pdev->dev, "Cannot enable interrupt: %d\n", ret);
                goto err_free;
        }
 
-       ret = devm_request_threaded_irq(&pdev->dev, lmc->msix_ent.vector,
+       ret = devm_request_threaded_irq(&pdev->dev, pci_irq_vector(pdev, 0),
                                        thunderx_lmc_err_isr,
                                        thunderx_lmc_threaded_isr, 0,
                                        "[EDAC] ThunderX LMC", mci);
@@ -1079,7 +1077,6 @@ struct thunderx_ocx {
        struct edac_device_ctl_info *edac_dev;
 
        struct dentry *debugfs;
-       struct msix_entry msix_ent[OCX_INTS];
 
        struct ocx_com_err_ctx com_err_ctx[RING_ENTRIES];
        struct ocx_link_err_ctx link_err_ctx[RING_ENTRIES];
@@ -1095,12 +1092,9 @@ struct thunderx_ocx {
 #define OCX_OTHER_SIZE         (50 * ARRAY_SIZE(ocx_com_link_errors))
 
 /* This handler is threaded */
-static irqreturn_t thunderx_ocx_com_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_ocx_com_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_ocx *ocx = container_of(msix, struct thunderx_ocx,
-                                               msix_ent[msix->entry]);
-
+       struct thunderx_ocx *ocx = (struct thunderx_ocx *) dev_id;
        int lane;
        unsigned long head = ring_pos(ocx->com_ring_head,
                                      ARRAY_SIZE(ocx->com_err_ctx));
@@ -1124,12 +1118,9 @@ static irqreturn_t thunderx_ocx_com_isr(int irq, void 
*irq_id)
        return IRQ_WAKE_THREAD;
 }
 
-static irqreturn_t thunderx_ocx_com_threaded_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_ocx_com_threaded_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_ocx *ocx = container_of(msix, struct thunderx_ocx,
-                                               msix_ent[msix->entry]);
-
+       struct thunderx_ocx *ocx = (struct thunderx_ocx *) dev_id;
        irqreturn_t ret = IRQ_NONE;
 
        unsigned long tail;
@@ -1188,16 +1179,14 @@ static irqreturn_t thunderx_ocx_com_threaded_isr(int 
irq, void *irq_id)
        return ret;
 }
 
-static irqreturn_t thunderx_ocx_lnk_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_ocx_lnk_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_ocx *ocx = container_of(msix, struct thunderx_ocx,
-                                               msix_ent[msix->entry]);
+       struct thunderx_ocx *ocx = (struct thunderx_ocx *) dev_id;
        unsigned long head = ring_pos(ocx->link_ring_head,
                                      ARRAY_SIZE(ocx->link_err_ctx));
        struct ocx_link_err_ctx *ctx = &ocx->link_err_ctx[head];
 
-       ctx->link = msix->entry;
+       ctx->link = irq - pci_irq_vector(ocx->pdev, 0);
        ctx->reg_com_link_int = readq(ocx->regs + OCX_COM_LINKX_INT(ctx->link));
 
        writeq(ctx->reg_com_link_int, ocx->regs + OCX_COM_LINKX_INT(ctx->link));
@@ -1207,11 +1196,9 @@ static irqreturn_t thunderx_ocx_lnk_isr(int irq, void 
*irq_id)
        return IRQ_WAKE_THREAD;
 }
 
-static irqreturn_t thunderx_ocx_lnk_threaded_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_ocx_lnk_threaded_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_ocx *ocx = container_of(msix, struct thunderx_ocx,
-                                               msix_ent[msix->entry]);
+       struct thunderx_ocx *ocx = (struct thunderx_ocx *) dev_id;
        irqreturn_t ret = IRQ_NONE;
        unsigned long tail;
        struct ocx_link_err_ctx *ctx;
@@ -1410,20 +1397,15 @@ static int thunderx_ocx_probe(struct pci_dev *pdev,
 
        ocx->pdev = pdev;
 
-       for (i = 0; i < OCX_INTS; i++) {
-               ocx->msix_ent[i].entry = i;
-               ocx->msix_ent[i].vector = 0;
-       }
-
-       ret = pci_enable_msix_exact(pdev, ocx->msix_ent, OCX_INTS);
-       if (ret) {
+       ret = pci_alloc_irq_vectors(pdev, 1, OCX_INTS, PCI_IRQ_MSIX);
+       if (ret < 0) {
                dev_err(&pdev->dev, "Cannot enable interrupt: %d\n", ret);
                goto err_free;
        }
 
        for (i = 0; i < OCX_INTS; i++) {
                ret = devm_request_threaded_irq(&pdev->dev,
-                                               ocx->msix_ent[i].vector,
+                                               pci_irq_vector(pdev, i),
                                                (i == 3) ?
                                                 thunderx_ocx_com_isr :
                                                 thunderx_ocx_lnk_isr,
@@ -1431,7 +1413,7 @@ static int thunderx_ocx_probe(struct pci_dev *pdev,
                                                 thunderx_ocx_com_threaded_isr :
                                                 thunderx_ocx_lnk_threaded_isr,
                                                0, "[EDAC] ThunderX OCX",
-                                               &ocx->msix_ent[i]);
+                                               ocx);
                if (ret)
                        goto err_free;
        }
@@ -1773,19 +1755,14 @@ struct thunderx_l2c {
 
        int index;
 
-       struct msix_entry msix_ent;
-
        struct l2c_err_ctx err_ctx[RING_ENTRIES];
        unsigned long ring_head;
        unsigned long ring_tail;
 };
 
-static irqreturn_t thunderx_l2c_tad_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_l2c_tad_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_l2c *tad = container_of(msix, struct thunderx_l2c,
-                                               msix_ent);
-
+       struct thunderx_l2c *tad = (struct thunderx_l2c *) dev_id;
        unsigned long head = ring_pos(tad->ring_head, ARRAY_SIZE(tad->err_ctx));
        struct l2c_err_ctx *ctx = &tad->err_ctx[head];
 
@@ -1812,12 +1789,9 @@ static irqreturn_t thunderx_l2c_tad_isr(int irq, void 
*irq_id)
        return IRQ_WAKE_THREAD;
 }
 
-static irqreturn_t thunderx_l2c_cbc_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_l2c_cbc_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_l2c *cbc = container_of(msix, struct thunderx_l2c,
-                                               msix_ent);
-
+       struct thunderx_l2c *cbc = (struct thunderx_l2c *) dev_id;
        unsigned long head = ring_pos(cbc->ring_head, ARRAY_SIZE(cbc->err_ctx));
        struct l2c_err_ctx *ctx = &cbc->err_ctx[head];
 
@@ -1841,12 +1815,9 @@ static irqreturn_t thunderx_l2c_cbc_isr(int irq, void 
*irq_id)
        return IRQ_WAKE_THREAD;
 }
 
-static irqreturn_t thunderx_l2c_mci_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_l2c_mci_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_l2c *mci = container_of(msix, struct thunderx_l2c,
-                                               msix_ent);
-
+       struct thunderx_l2c *mci = (struct thunderx_l2c *) dev_id;
        unsigned long head = ring_pos(mci->ring_head, ARRAY_SIZE(mci->err_ctx));
        struct l2c_err_ctx *ctx = &mci->err_ctx[head];
 
@@ -1862,12 +1833,9 @@ static irqreturn_t thunderx_l2c_mci_isr(int irq, void 
*irq_id)
        return IRQ_WAKE_THREAD;
 }
 
-static irqreturn_t thunderx_l2c_threaded_isr(int irq, void *irq_id)
+static irqreturn_t thunderx_l2c_threaded_isr(int irq, void *dev_id)
 {
-       struct msix_entry *msix = irq_id;
-       struct thunderx_l2c *l2c = container_of(msix, struct thunderx_l2c,
-                                               msix_ent);
-
+       struct thunderx_l2c *l2c = (struct thunderx_l2c *) dev_id;
        unsigned long tail = ring_pos(l2c->ring_tail, ARRAY_SIZE(l2c->err_ctx));
        struct l2c_err_ctx *ctx = &l2c->err_ctx[tail];
        irqreturn_t ret = IRQ_NONE;
@@ -2049,20 +2017,17 @@ static int thunderx_l2c_probe(struct pci_dev *pdev,
        l2c->ring_head = 0;
        l2c->ring_tail = 0;
 
-       l2c->msix_ent.entry = 0;
-       l2c->msix_ent.vector = 0;
-
-       ret = pci_enable_msix_exact(pdev, &l2c->msix_ent, 1);
-       if (ret) {
+       ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
+       if (ret < 0) {
                dev_err(&pdev->dev, "Cannot enable interrupt: %d\n", ret);
                goto err_free;
        }
 
-       ret = devm_request_threaded_irq(&pdev->dev, l2c->msix_ent.vector,
+       ret = devm_request_threaded_irq(&pdev->dev, pci_irq_vector(pdev, 0),
                                        thunderx_l2c_isr,
                                        thunderx_l2c_threaded_isr,
                                        0, "[EDAC] ThunderX L2C",
-                                       &l2c->msix_ent);
+                                       l2c);
        if (ret)
                goto err_free;
 
-- 
1.9.1

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