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author | Poddar, Siddarth <siddpodd@codeaurora.org> | 2017-10-27 16:05:28 +0530 |
---|---|---|
committer | snandini <snandini@codeaurora.org> | 2017-10-30 07:38:07 -0700 |
commit | 9f7b297a38dd23cd0951862d0d277885b3ee7ca8 (patch) | |
tree | b8fbe8e663b2e204944f04af021056308f043529 /utils | |
parent | e9f0e9c77fd7d1c705605a1c9851bd2697a1f7b6 (diff) | |
download | qca-wfi-host-cmn-9f7b297a38dd23cd0951862d0d277885b3ee7ca8.tar.gz |
qcacmn: Remove code related to mmap functionality for pktlog
Remove the code related to mmap functionality for pktlog
as it is no longer used/required.
Change-Id: Ib031148985055201810a7c32347c2e6efea57f35
CRs-Fixed: 2133878
Diffstat (limited to 'utils')
-rw-r--r-- | utils/pktlog/linux_ac.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/utils/pktlog/linux_ac.c b/utils/pktlog/linux_ac.c index 2854de58b..4d4141b4d 100644 --- a/utils/pktlog/linux_ac.c +++ b/utils/pktlog/linux_ac.c @@ -82,14 +82,12 @@ static int pktlog_attach(struct hif_opaque_softc *sc); static void pktlog_detach(struct ol_txrx_pdev_t *handle); static int pktlog_open(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, loff_t *ppos); static struct file_operations pktlog_fops = { open: pktlog_open, release:pktlog_release, - mmap : pktlog_mmap, read : pktlog_read, }; @@ -1016,106 +1014,6 @@ pktlog_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos) 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 ret; |