[PATCH] drm/amdgpu: fix compiler 'side-effect' check issue for RAS_EVENT_LOG()

[Zhang, Hawking]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Wang, Yang(Kevin) <KevinYang.Wang at amd.com>
Sent: Tuesday, May 14, 2024 08:03
To: amd-gfx at lists.freedesktop.org
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>; Kamal, Asad <Asad.Kamal at amd.com>
Subject: [PATCH] drm/amdgpu: fix compiler 'side-effect' check issue for RAS_EVENT_LOG()

create a new helper function to avoid compiler 'side-effect'
check about RAS_EVENT_LOG() macro.

Signed-off-by: Yang Wang <kevinyang.wang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 18 ++++++++++++++++++  drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 13 ++++++-------
 2 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 1dd13ed3b7b5..c04e6ced1af3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -4504,3 +4504,21 @@ int amdgpu_ras_reserve_page(struct amdgpu_device *adev, uint64_t pfn)

        return ret;
 }
+
+void amdgpu_ras_event_log_print(struct amdgpu_device *adev, u64 event_id,
+                               const char *fmt, ...)
+{
+       struct va_format vaf;
+       va_list args;
+
+       va_start(args, fmt);
+       vaf.fmt = fmt;
+       vaf.va = &args;
+
+       if (amdgpu_ras_event_id_is_valid(adev, event_id))
+               dev_printk(KERN_INFO, adev->dev, "{%llu}%pV", event_id, &vaf);
+       else
+               dev_printk(KERN_INFO, adev->dev, "%pV", &vaf);
+
+       va_end(args);
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index c8980d5f6540..6a8c7b1609df 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -67,13 +67,8 @@ struct amdgpu_iv_entry;
 /* The high three bits indicates socketid */  #define AMDGPU_RAS_GET_FEATURES(val)  ((val) & ~AMDGPU_RAS_FEATURES_SOCKETID_MASK)

-#define RAS_EVENT_LOG(_adev, _id, _fmt, ...)                           \
-do {                                                                   \
-       if (amdgpu_ras_event_id_is_valid((_adev), (_id)))                       \
-           dev_info((_adev)->dev, "{%llu}" _fmt, (_id), ##__VA_ARGS__);        \
-       else                                                            \
-           dev_info((_adev)->dev, _fmt, ##__VA_ARGS__);                        \
-} while (0)
+#define RAS_EVENT_LOG(adev, id, fmt, ...)      \
+       amdgpu_ras_event_log_print((adev), (id), (fmt), ##__VA_ARGS__);

 enum amdgpu_ras_block {
        AMDGPU_RAS_BLOCK__UMC = 0,
@@ -956,4 +951,8 @@ int amdgpu_ras_put_poison_req(struct amdgpu_device *adev,
                enum amdgpu_ras_block block, uint16_t pasid,
                pasid_notify pasid_fn, void *data, uint32_t reset);

+__printf(3, 4)
+void amdgpu_ras_event_log_print(struct amdgpu_device *adev, u64 event_id,
+                               const char *fmt, ...);
+
 #endif
--
2.34.1