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qcacmn: Remove code related to mmap functionality for pktlog

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Remove the code related to mmap functionality for pktlog
as it is no longer used/required.

Change-Id: Ib031148985055201810a7c32347c2e6efea57f35
CRs-Fixed: 2133878
This commit is contained in:
Poddar, Siddarth
2017-10-27 16:05:28 +05:30
committed by snandini
parent e9f0e9c77f
commit 9f7b297a38
1 changed files with 0 additions and 102 deletions
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102
utils/pktlog/linux_ac.c
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@@ -82,14 +82,12 @@ static int pktlog_attach(struct hif_opaque_softc *sc);
static void pktlog_detach(struct ol_txrx_pdev_t *handle); static void pktlog_detach(struct ol_txrx_pdev_t *handle);
static int pktlog_open(struct inode *i, struct file *f); static int pktlog_open(struct inode *i, struct file *f);
static int pktlog_release(struct inode *i, struct file *f); static int pktlog_release(struct inode *i, struct file *f);
static int pktlog_mmap(struct file *f, struct vm_area_struct *vma);
static ssize_t pktlog_read(struct file *file, char *buf, size_t nbytes, static ssize_t pktlog_read(struct file *file, char *buf, size_t nbytes,
loff_t *ppos); loff_t *ppos);
static struct file_operations pktlog_fops = { static struct file_operations pktlog_fops = {
open: pktlog_open, open: pktlog_open,
release:pktlog_release, release:pktlog_release,
mmap : pktlog_mmap,
read : pktlog_read, read : pktlog_read,
}; };
@@ -1016,106 +1014,6 @@ pktlog_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos)
return ret; return ret;
} }
#ifndef VMALLOC_VMADDR
#define VMALLOC_VMADDR(x) ((unsigned long)(x))
#endif
/* vma operations for mapping vmalloced area to user space */
static void pktlog_vopen(struct vm_area_struct *vma)
{
PKTLOG_MOD_INC_USE_COUNT;
}
static void pktlog_vclose(struct vm_area_struct *vma)
{
PKTLOG_MOD_DEC_USE_COUNT;
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
static inline unsigned long pktlog_get_fault_address(struct vm_fault *vmf)
{
return (unsigned long)vmf->virtual_address;
}
#else
static inline unsigned long pktlog_get_fault_address(struct vm_fault *vmf)
{
return vmf->address;
}
#endif /* KERNEL_VERSION(4, 10, 0) */
static int
pktlog_fault_handler(struct vm_area_struct *vma, struct vm_fault *vmf)
{
unsigned long address = pktlog_get_fault_address(vmf);
if (address == 0UL)
return VM_FAULT_NOPAGE;
if (vmf->pgoff > vma->vm_end)
return VM_FAULT_SIGBUS;
get_page(virt_to_page((void *)address));
vmf->page = virt_to_page((void *)address);
return 0;
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
static int pktlog_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
return pktlog_fault_handler(vma, vmf);
}
#else
static int pktlog_fault(struct vm_fault *vmf)
{
return pktlog_fault_handler(vmf->vma, vmf);
}
#endif
static struct vm_operations_struct pktlog_vmops = {
open: pktlog_vopen,
close:pktlog_vclose,
fault:pktlog_fault,
};
static int __pktlog_mmap(struct file *file, struct vm_area_struct *vma)
{
struct ath_pktlog_info *pl_info;
pl_info = (struct ath_pktlog_info *)
PDE_DATA(file->f_path.dentry->d_inode);
if (vma->vm_pgoff != 0) {
/* Entire buffer should be mapped */
return -EINVAL;
}
if (!pl_info->buf) {
printk(PKTLOG_TAG "%s: Log buffer unavailable\n", __func__);
return -ENOMEM;
}
if (cds_is_module_state_transitioning()) {
pr_info("%s: module transition in progress", __func__);
return -EAGAIN;
}
vma->vm_flags |= VM_LOCKED;
vma->vm_ops = &pktlog_vmops;
pktlog_vopen(vma);
return 0;
}
static int pktlog_mmap(struct file *file, struct vm_area_struct *vma)
{
int ret;
cds_ssr_protect(__func__);
ret = __pktlog_mmap(file, vma);
cds_ssr_unprotect(__func__);
return ret;
}
int pktlogmod_init(void *context) int pktlogmod_init(void *context)
{ {
int ret; int ret;