From: Ruiqiang Hao <ruiqiang....@windriver.com> In commit de8f520a0c92 (driver:mpam: Fix the compilations issues when ACPI is not selected) introduced compiler warning below, add #ifdef statement around variable 'prot' and replace ACPI with CONFIG_ACPI to solve this problem.
drivers/platform/mpam/mpam_devices.c: In function 'mpam_msc_drv_probe': drivers/platform/mpam/mpam_devices.c:1598:18: warning: unused variable 'prot' [-Wunused-variable] 1598 | pgprot_t prot; | ^~~~ Signed-off-by: Ruiqiang Hao <ruiqiang....@windriver.com> --- drivers/platform/mpam/mpam_devices.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/platform/mpam/mpam_devices.c b/drivers/platform/mpam/mpam_devices.c index b3aab46e06a1..3dfa114abea0 100644 --- a/drivers/platform/mpam/mpam_devices.c +++ b/drivers/platform/mpam/mpam_devices.c @@ -1595,7 +1595,9 @@ static void mpam_pcc_rx_callback(struct mbox_client *cl, void *msg) static int mpam_msc_drv_probe(struct platform_device *pdev) { int err; +#ifdef CONFIG_ACPI pgprot_t prot; +#endif void * __iomem io; struct mpam_msc *msc; struct resource *msc_res; @@ -1672,7 +1674,7 @@ static int mpam_msc_drv_probe(struct platform_device *pdev) err = PTR_ERR(msc->pcc_chan); break; } -#ifdef ACPI +#ifdef CONFIG_ACPI prot = __acpi_get_mem_attribute(msc->pcc_chan->shmem_base_addr); io = ioremap_prot(msc->pcc_chan->shmem_base_addr, msc->pcc_chan->shmem_size, pgprot_val(prot)); -- 2.39.2
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