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PCI: endpoint: pci-epf-vntb: Fix sparse build warning for epf_db

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Use epf_db[i] dereference instead of readl() because epf_db is
in memory allocated by dma_alloc_coherent(), not I/O.

Remove useless/duplicated readl() in the process.

Link: https://lore.kernel.org/r/20221102141014.1025893-7-Frank.Li@nxp.com
Signed-off-by: Frank Li <frank.li@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
This commit is contained in:
Frank Li
2022-11-02 10:10:13 -04:00
committed by Lorenzo Pieralisi
parent 2b35c88655
commit 01dcec6d57
1 changed files with 4 additions and 6 deletions
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10
drivers/pci/endpoint/functions/pci-epf-vntb.c
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@@ -136,7 +136,7 @@ struct epf_ntb {
struct epf_ntb_ctrl *reg;
void __iomem *epf_db;
u32 *epf_db;
phys_addr_t vpci_mw_phy[MAX_MW];
void __iomem *vpci_mw_addr[MAX_MW];
@@ -257,12 +257,10 @@ static void epf_ntb_cmd_handler(struct work_struct *work)
ntb = container_of(work, struct epf_ntb, cmd_handler.work);
for (i = 1; i < ntb->db_count; i++) {
if (readl(ntb->epf_db + i * sizeof(u32))) {
if (readl(ntb->epf_db + i * sizeof(u32)))
ntb->db |= 1 << (i - 1);
if (ntb->epf_db[i]) {
ntb->db |= 1 << (i - 1);
ntb_db_event(&ntb->ntb, i);
writel(0, ntb->epf_db + i * sizeof(u32));
ntb->epf_db[i] = 0;
}
}