drm/amd/powerplay: suppress compile error around BUG_ON

To suppress the compile error below for "ARCH=arc".
   drivers/gpu/drm/amd/amdgpu/../powerplay/arcturus_ppt.c: In function 'arcturus_fill_eeprom_i2c_req':
>> arch/arc/include/asm/bug.h:22:2: error: implicit declaration of function 'pr_warn'; did you mean 'pci_warn'? [-Werror=implicit-function-declaration]
      22 |  pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
         |  ^~~~~~~
   include/asm-generic/bug.h:62:57: note: in expansion of macro 'BUG'
      62 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
         |                                                         ^~~
   drivers/gpu/drm/amd/amdgpu/../powerplay/arcturus_ppt.c:2157:2: note: in expansion of macro 'BUG_ON'
    2157 |  BUG_ON(numbytes > MAX_SW_I2C_COMMANDS);

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 56dc20a..62bd145 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -1953,8 +1953,6 @@ static void arcturus_fill_eeprom_i2c_req(SwI2cRequest_t  *req, bool write,
 {
        int i;
 
-       BUG_ON(numbytes > MAX_SW_I2C_COMMANDS);
-
        req->I2CcontrollerPort = 0;
        req->I2CSpeed = 2;
        req->SlaveAddress = address;
@@ -1992,6 +1990,12 @@ static int arcturus_i2c_eeprom_read_data(struct i2c_adapter *control,
        struct smu_table_context *smu_table = &adev->smu.smu_table;
        struct smu_table *table = &smu_table->driver_table;
 
+       if (numbytes > MAX_SW_I2C_COMMANDS) {
+               dev_err(adev->dev, "numbytes requested %d is over max allowed %d\n",
+                       numbytes, MAX_SW_I2C_COMMANDS);
+               return -EINVAL;
+       }
+
        memset(&req, 0, sizeof(req));
        arcturus_fill_eeprom_i2c_req(&req, false, address, numbytes, data);
 
@@ -2028,6 +2032,12 @@ static int arcturus_i2c_eeprom_write_data(struct i2c_adapter *control,
        SwI2cRequest_t req;
        struct amdgpu_device *adev = to_amdgpu_device(control);
 
+       if (numbytes > MAX_SW_I2C_COMMANDS) {
+               dev_err(adev->dev, "numbytes requested %d is over max allowed %d\n",
+                       numbytes, MAX_SW_I2C_COMMANDS);
+               return -EINVAL;
+       }
+
        memset(&req, 0, sizeof(req));
        arcturus_fill_eeprom_i2c_req(&req, true, address, numbytes, data);