ath10k-ct: add patch fixing compilation warning for debug level

Add patch fixing compilation warning for debug level read.
Fix compilation warning:
/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-malta_be/ath10k-ct-regular/ath10k-ct-2022-05-13-f808496f/ath10k-5.15/debug.c: In function 'ath10k_read_debug_level': /__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-malta_be/ath10k-ct-regular/ath10k-ct-2022-05-13-f808496f/ath10k-5.15/debug.c:1388:1: error: the frame size of 1440 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
1388 | }
| ^

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

diff --git a/package/kernel/ath10k-ct/patches/203-ath10k-ct-fix-compilation-warning-for-debug-level.patch b/package/kernel/ath10k-ct/patches/203-ath10k-ct-fix-compilation-warning-for-debug-level.patch
new file mode 100644 (file)
index 0000000..6c85492
--- /dev/null
+++ b/package/kernel/ath10k-ct/patches/203-ath10k-ct-fix-compilation-warning-for-debug-level.patch
@@ -0,0 +1,222 @@
+From 3b07c3a6e4adebd0466f5e539f318224db8cfc37 Mon Sep 17 00:00:00 2001
+From: Christian Marangi <ansuelsmth@gmail.com>
+Date: Sat, 6 May 2023 15:29:52 +0200
+Subject: [PATCH] ath10k-ct: fix compilation warning for debug level
+
+Rework read_debug_level function as it does exceed the stack limit for
+some arch.
+Fix compilation error:
+/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-malta_be/ath10k-ct-regular/ath10k-ct-2022-05-13-f808496f/ath10k-5.15/debug.c: In function 'ath10k_read_debug_level':
+/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-malta_be/ath10k-ct-regular/ath10k-ct-2022-05-13-f808496f/ath10k-5.15/debug.c:1388:1: error: the frame size of 1440 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
+ 1388 | }
+      | ^
+
+Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+---
+ ath10k-5.15/debug.c | 85 +++++++++++++++++++++++++--------------------
+ ath10k-5.17/debug.c | 85 +++++++++++++++++++++++++--------------------
+ 2 files changed, 96 insertions(+), 74 deletions(-)
+
+diff --git a/ath10k-5.15/debug.c b/ath10k-5.15/debug.c
+index af84012..d0fa911 100644
+--- a/ath10k-5.15/debug.c
++++ b/ath10k-5.15/debug.c
+@@ -1344,47 +1344,58 @@ static const struct file_operations fops_simulate_fw_crash = {
+       .llseek = default_llseek,
+ };
+ 
++static const char debug_level_buf[] =
++      "To change debug level, set value adding up desired flags:\n"
++      "PCI:                0x1\n"
++      "WMI:                0x2\n"
++      "HTC:                0x4\n"
++      "HTT:                0x8\n"
++      "MAC:               0x10\n"
++      "BOOT:              0x20\n"
++      "PCI-DUMP:          0x40\n"
++      "HTT-DUMP:          0x80\n"
++      "MGMT:             0x100\n"
++      "DATA:             0x200\n"
++      "BMI:              0x400\n"
++      "REGULATORY:       0x800\n"
++      "TESTMODE:        0x1000\n"
++      "WMI-PRINT:       0x2000\n"
++      "PCI-PS:          0x4000\n"
++      "AHB:             0x8000\n"
++      "SDIO:           0x10000\n"
++      "SDIO_DUMP:      0x20000\n"
++      "USB:            0x40000\n"
++      "USB_BULK:       0x80000\n"
++      "SNOC:          0x100000\n"
++      "QMI:           0x200000\n"
++      "BEACONS:      0x8000000\n"
++      "NO-FW-DBGLOG:0x10000000\n"
++      "MAC2:        0x20000000\n"
++      "INFO-AS-DBG: 0x40000000\n"
++      "FW:          0x80000000\n"
++      "ALL:         0xEFFFFFFF\n";
++
++#define READ_DEBUG_LEVEL_SIZE sizeof(debug_level_buf) + 60
++
+ static ssize_t ath10k_read_debug_level(struct file *file,
+                                      char __user *user_buf,
+                                      size_t count, loff_t *ppos)
+ {
+-      int sz;
+-      const char buf[] =
+-              "To change debug level, set value adding up desired flags:\n"
+-              "PCI:                0x1\n"
+-              "WMI:                0x2\n"
+-              "HTC:                0x4\n"
+-              "HTT:                0x8\n"
+-              "MAC:               0x10\n"
+-              "BOOT:              0x20\n"
+-              "PCI-DUMP:          0x40\n"
+-              "HTT-DUMP:          0x80\n"
+-              "MGMT:             0x100\n"
+-              "DATA:             0x200\n"
+-              "BMI:              0x400\n"
+-              "REGULATORY:       0x800\n"
+-              "TESTMODE:        0x1000\n"
+-              "WMI-PRINT:       0x2000\n"
+-              "PCI-PS:          0x4000\n"
+-              "AHB:             0x8000\n"
+-              "SDIO:           0x10000\n"
+-              "SDIO_DUMP:      0x20000\n"
+-              "USB:            0x40000\n"
+-              "USB_BULK:       0x80000\n"
+-              "SNOC:          0x100000\n"
+-              "QMI:           0x200000\n"
+-              "BEACONS:      0x8000000\n"
+-              "NO-FW-DBGLOG:0x10000000\n"
+-              "MAC2:        0x20000000\n"
+-              "INFO-AS-DBG: 0x40000000\n"
+-              "FW:          0x80000000\n"
+-              "ALL:         0xEFFFFFFF\n";
+-      char wbuf[sizeof(buf) + 60];
+-      sz = snprintf(wbuf, sizeof(wbuf), "Current debug level: 0x%x\n\n%s",
+-                    ath10k_debug_mask, buf);
+-      wbuf[sizeof(wbuf) - 1] = 0;
+-
+-      return simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
++      int sz, ret;
++      char *wbuf;
++
++      wbuf = kcalloc(READ_DEBUG_LEVEL_SIZE, sizeof(char), GFP_KERNEL);
++      if (!wbuf)
++              return -ENOMEM;
++
++      sz = snprintf(wbuf, READ_DEBUG_LEVEL_SIZE,
++                    "Current debug level: 0x%x\n\n%s",
++                    ath10k_debug_mask, debug_level_buf);
++
++      ret = simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
++      kfree(wbuf);
++
++      return ret;
+ }
+ 
+ /* Set logging level.
+diff --git a/ath10k-5.17/debug.c b/ath10k-5.17/debug.c
+index af84012..d0fa911 100644
+--- a/ath10k-5.17/debug.c
++++ b/ath10k-5.17/debug.c
+@@ -1344,47 +1344,58 @@ static const struct file_operations fops_simulate_fw_crash = {
+       .llseek = default_llseek,
+ };
+ 
++static const char debug_level_buf[] =
++      "To change debug level, set value adding up desired flags:\n"
++      "PCI:                0x1\n"
++      "WMI:                0x2\n"
++      "HTC:                0x4\n"
++      "HTT:                0x8\n"
++      "MAC:               0x10\n"
++      "BOOT:              0x20\n"
++      "PCI-DUMP:          0x40\n"
++      "HTT-DUMP:          0x80\n"
++      "MGMT:             0x100\n"
++      "DATA:             0x200\n"
++      "BMI:              0x400\n"
++      "REGULATORY:       0x800\n"
++      "TESTMODE:        0x1000\n"
++      "WMI-PRINT:       0x2000\n"
++      "PCI-PS:          0x4000\n"
++      "AHB:             0x8000\n"
++      "SDIO:           0x10000\n"
++      "SDIO_DUMP:      0x20000\n"
++      "USB:            0x40000\n"
++      "USB_BULK:       0x80000\n"
++      "SNOC:          0x100000\n"
++      "QMI:           0x200000\n"
++      "BEACONS:      0x8000000\n"
++      "NO-FW-DBGLOG:0x10000000\n"
++      "MAC2:        0x20000000\n"
++      "INFO-AS-DBG: 0x40000000\n"
++      "FW:          0x80000000\n"
++      "ALL:         0xEFFFFFFF\n";
++
++#define READ_DEBUG_LEVEL_SIZE sizeof(debug_level_buf) + 60
++
+ static ssize_t ath10k_read_debug_level(struct file *file,
+                                      char __user *user_buf,
+                                      size_t count, loff_t *ppos)
+ {
+-      int sz;
+-      const char buf[] =
+-              "To change debug level, set value adding up desired flags:\n"
+-              "PCI:                0x1\n"
+-              "WMI:                0x2\n"
+-              "HTC:                0x4\n"
+-              "HTT:                0x8\n"
+-              "MAC:               0x10\n"
+-              "BOOT:              0x20\n"
+-              "PCI-DUMP:          0x40\n"
+-              "HTT-DUMP:          0x80\n"
+-              "MGMT:             0x100\n"
+-              "DATA:             0x200\n"
+-              "BMI:              0x400\n"
+-              "REGULATORY:       0x800\n"
+-              "TESTMODE:        0x1000\n"
+-              "WMI-PRINT:       0x2000\n"
+-              "PCI-PS:          0x4000\n"
+-              "AHB:             0x8000\n"
+-              "SDIO:           0x10000\n"
+-              "SDIO_DUMP:      0x20000\n"
+-              "USB:            0x40000\n"
+-              "USB_BULK:       0x80000\n"
+-              "SNOC:          0x100000\n"
+-              "QMI:           0x200000\n"
+-              "BEACONS:      0x8000000\n"
+-              "NO-FW-DBGLOG:0x10000000\n"
+-              "MAC2:        0x20000000\n"
+-              "INFO-AS-DBG: 0x40000000\n"
+-              "FW:          0x80000000\n"
+-              "ALL:         0xEFFFFFFF\n";
+-      char wbuf[sizeof(buf) + 60];
+-      sz = snprintf(wbuf, sizeof(wbuf), "Current debug level: 0x%x\n\n%s",
+-                    ath10k_debug_mask, buf);
+-      wbuf[sizeof(wbuf) - 1] = 0;
+-
+-      return simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
++      int sz, ret;
++      char *wbuf;
++
++      wbuf = kcalloc(READ_DEBUG_LEVEL_SIZE, sizeof(char), GFP_KERNEL);
++      if (!wbuf)
++              return -ENOMEM;
++
++      sz = snprintf(wbuf, READ_DEBUG_LEVEL_SIZE,
++                    "Current debug level: 0x%x\n\n%s",
++                    ath10k_debug_mask, debug_level_buf);
++
++      ret = simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
++      kfree(wbuf);
++
++      return ret;
+ }
+ 
+ /* Set logging level.
+-- 
+2.39.2
+