From: Oded Gabbay oded.gabbay@gmail.com
[ Upstream commit f763946aefe67b3ea58696b75a930ba1ed886a83 ]
When shifting a boolean variable by more than 31 bits and putting the result into a u64 variable, we need to cast the boolean into unsigned 64 bits to prevent possible overflow.
Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/habanalabs/gaudi/gaudi.c | 8 +++++--- drivers/misc/habanalabs/goya/goya.c | 8 +++++--- 2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 4009b7df4cafe..2e55890ad6a61 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -6099,7 +6099,7 @@ static bool gaudi_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << + *mask |= ((u64) !is_eng_idle) << (GAUDI_ENGINE_ID_DMA_0 + dma_id); if (s) seq_printf(s, fmt, dma_id, @@ -6122,7 +6122,8 @@ static bool gaudi_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << (GAUDI_ENGINE_ID_TPC_0 + i); + *mask |= ((u64) !is_eng_idle) << + (GAUDI_ENGINE_ID_TPC_0 + i); if (s) seq_printf(s, fmt, i, is_eng_idle ? "Y" : "N", @@ -6150,7 +6151,8 @@ static bool gaudi_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << (GAUDI_ENGINE_ID_MME_0 + i); + *mask |= ((u64) !is_eng_idle) << + (GAUDI_ENGINE_ID_MME_0 + i); if (s) { if (!is_slave) seq_printf(s, fmt, i, diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 33cd2ae653d23..c09742f440f96 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -5166,7 +5166,8 @@ static bool goya_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << (GOYA_ENGINE_ID_DMA_0 + i); + *mask |= ((u64) !is_eng_idle) << + (GOYA_ENGINE_ID_DMA_0 + i); if (s) seq_printf(s, dma_fmt, i, is_eng_idle ? "Y" : "N", qm_glbl_sts0, dma_core_sts0); @@ -5189,7 +5190,8 @@ static bool goya_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << (GOYA_ENGINE_ID_TPC_0 + i); + *mask |= ((u64) !is_eng_idle) << + (GOYA_ENGINE_ID_TPC_0 + i); if (s) seq_printf(s, fmt, i, is_eng_idle ? "Y" : "N", qm_glbl_sts0, cmdq_glbl_sts0, tpc_cfg_sts); @@ -5209,7 +5211,7 @@ static bool goya_is_device_idle(struct hl_device *hdev, u32 *mask, is_idle &= is_eng_idle;
if (mask) - *mask |= !is_eng_idle << GOYA_ENGINE_ID_MME_0; + *mask |= ((u64) !is_eng_idle) << GOYA_ENGINE_ID_MME_0; if (s) { seq_printf(s, fmt, 0, is_eng_idle ? "Y" : "N", qm_glbl_sts0, cmdq_glbl_sts0, mme_arch_sts);