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iwlwifi: mvm: remove d3_sram debugfs file 

This debugfs file is really old, and cannot work properly since
the unified image support. Rather than trying to make it work,
which is difficult now due to multiple images (LMAC/UMAC etc.)
just remove it - we no longer need it since we properly do a FW
coredump even in D3 cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Johannes Berg 2019-05-29 16:39:49 +03:00 committed by Kalle Valo
parent 685c9b7750
commit 23f57bfac7
4 changed files with 0 additions and 84 deletions
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22
drivers/net/wireless/intel/iwlwifi/mvm/d3.c
View File

@ -1972,26 +1972,6 @@ static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
}
}
static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
{
#ifdef CONFIG_IWLWIFI_DEBUGFS
const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
if (!mvm->store_d3_resume_sram)
return;
if (!mvm->d3_resume_sram) {
mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
if (!mvm->d3_resume_sram)
return;
}
iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
#endif
}
static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
@ -2054,8 +2034,6 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
}
iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
/* query SRAM first in case we want event logging */
iwl_mvm_read_d3_sram(mvm);
if (iwl_mvm_check_rt_status(mvm, vif)) {
set_bit(STATUS_FW_ERROR, &mvm->trans->status);

57
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
View File

@ -1557,59 +1557,6 @@ static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
}
#endif
#ifdef CONFIG_PM_SLEEP
static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
int store;
if (sscanf(buf, "%d", &store) != 1)
return -EINVAL;
mvm->store_d3_resume_sram = store;
return count;
}
static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
const struct fw_img *img;
int ofs, len, pos = 0;
size_t bufsz, ret;
char *buf;
u8 *ptr = mvm->d3_resume_sram;
img = &mvm->fw->img[IWL_UCODE_WOWLAN];
len = img->sec[IWL_UCODE_SECTION_DATA].len;
bufsz = len * 4 + 256;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
mvm->store_d3_resume_sram ? "en" : "dis");
if (ptr) {
for (ofs = 0; ofs < len; ofs += 16) {
pos += scnprintf(buf + pos, bufsz - pos,
"0x%.4x %16ph\n", ofs, ptr + ofs);
}
} else {
pos += scnprintf(buf + pos, bufsz - pos,
"(no data captured)\n");
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
#endif
#define PRINT_MVM_REF(ref) do { \
if (mvm->refs[ref]) \
pos += scnprintf(buf + pos, bufsz - pos, \
@ -1940,9 +1887,6 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
#endif
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
#endif
#ifdef CONFIG_ACPI
MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
#endif
@ -2159,7 +2103,6 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
#endif
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, 0600);
MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, 0400);
debugfs_create_bool("d3_wake_sysassert", 0600, mvm->debugfs_dir,
&mvm->d3_wake_sysassert);

2
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -1039,8 +1039,6 @@ struct iwl_mvm {
#ifdef CONFIG_IWLWIFI_DEBUGFS
bool d3_wake_sysassert;
bool d3_test_active;
bool store_d3_resume_sram;
void *d3_resume_sram;
u32 d3_test_pme_ptr;
struct ieee80211_vif *keep_vif;
u32 last_netdetect_scans; /* no. of scans in the last net-detect wake */

3
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -918,9 +918,6 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
kfree(mvm->error_recovery_buf);
mvm->error_recovery_buf = NULL;
#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
kfree(mvm->d3_resume_sram);
#endif
iwl_trans_op_mode_leave(mvm->trans);
iwl_phy_db_free(mvm->phy_db);