[U-Boot] [PATCH V2 1/1] Revert "spi: fsl_qspi: Use GENMASK"

If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Reviewed-by: Fabio Estevam fabio.estevam@freescale.com Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com
--- v2: add sign off/ reviewed by --- drivers/spi/fsl_qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c index ed39114..dd7048a 100644 --- a/drivers/spi/fsl_qspi.c +++ b/drivers/spi/fsl_qspi.c @@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR; #define TX_BUFFER_SIZE 0x40 #endif
-#define OFFSET_BITS_MASK GENMASK(24, 0) +#define OFFSET_BITS_MASK 0x00ffffff
#define FLASH_STATUS_WEL 0x02

On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
Reviewed-by: Fabio Estevam fabio.estevam@freescale.com Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com
v2: add sign off/ reviewed by
drivers/spi/fsl_qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c index ed39114..dd7048a 100644 --- a/drivers/spi/fsl_qspi.c +++ b/drivers/spi/fsl_qspi.c @@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR; #define TX_BUFFER_SIZE 0x40 #endif
-#define OFFSET_BITS_MASK GENMASK(24, 0) +#define OFFSET_BITS_MASK 0x00ffffff
#define FLASH_STATUS_WEL 0x02
-- 2.5.0
thanks!

On Friday, December 11, 2015 at 03:59:14 PM, Jagan Teki wrote:
On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com
wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
I also agree this GENMASK() crap is confusing.
Reviewed-by: Fabio Estevam fabio.estevam@freescale.com Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com
v2: add sign off/ reviewed by
drivers/spi/fsl_qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c index ed39114..dd7048a 100644 --- a/drivers/spi/fsl_qspi.c +++ b/drivers/spi/fsl_qspi.c @@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR;
#define TX_BUFFER_SIZE 0x40 #endif
-#define OFFSET_BITS_MASK GENMASK(24, 0) +#define OFFSET_BITS_MASK 0x00ffffff
#define FLASH_STATUS_WEL 0x02
-- 2.5.0
thanks!
Best regards, Marek Vasut

On Fri, Dec 11, 2015 at 1:24 PM, Marek Vasut marex@denx.de wrote:
On Friday, December 11, 2015 at 03:59:14 PM, Jagan Teki wrote:
On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com
wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
I also agree this GENMASK() crap is confusing.
Agreed. A simple proof that this is confusing is that it broke the fsl_qspi.c driver.

On 11 December 2015 at 20:58, Fabio Estevam festevam@gmail.com wrote:
On Fri, Dec 11, 2015 at 1:24 PM, Marek Vasut marex@denx.de wrote:
On Friday, December 11, 2015 at 03:59:14 PM, Jagan Teki wrote:
On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com
wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
I also agree this GENMASK() crap is confusing.
Agreed. A simple proof that this is confusing is that it broke the fsl_qspi.c driver.
Probably your pointed at wrong h on genmask - but this wasn't be a proof of any global defined macro it's a mistake of using improper h value. If something went wrong with the patch then always ask and fix for proper thing and blaming global macro which used in other files is not a good thing.
thanks!

On Friday, December 11, 2015 at 04:41:50 PM, Jagan Teki wrote:
On 11 December 2015 at 20:58, Fabio Estevam festevam@gmail.com wrote:
On Fri, Dec 11, 2015 at 1:24 PM, Marek Vasut marex@denx.de wrote:
On Friday, December 11, 2015 at 03:59:14 PM, Jagan Teki wrote:
On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com
wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
I also agree this GENMASK() crap is confusing.
Agreed. A simple proof that this is confusing is that it broke the fsl_qspi.c driver.
Probably your pointed at wrong h on genmask - but this wasn't be a proof of any global defined macro it's a mistake of using improper h value.
Sorry, I do not understand this sentence at all.
If something went wrong with the patch then always ask and fix for proper thing and blaming global macro which used in other files is not a good thing.
Usage of the macro itself is so confusing that even the conversion went wrong and introduced bugs. Clearly, using the macro is NOT an improvement. I also vote for the revert.
Best regards, Marek Vasut

Hi Jagan, Marek, Troy,
On 11/12/2015 16:24, Marek Vasut wrote:
On Friday, December 11, 2015 at 03:59:14 PM, Jagan Teki wrote:
On 11 December 2015 at 02:57, Troy Kisky troy.kisky@boundarydevices.com
wrote:
If GENMASK is REALLY desired, it should be GENMASK(23,0) But since GENMASK is obviously more confusing, let's just revert.
This reverts commit bad490a24212c068c5b718b9189f47ea4075d078.
Sorry, just fix genmask why revert? because driver author has no complaint on this, please don't just say simply "more confusing" more over I usually prefer reverting bug fix patches.
I also agree this GENMASK() crap is confusing.
IMHO it is easier for me to check directly the mask, as relying to a macro. But this is only my personal opinion.
On the other side, the GENMASK macro is taken from the kernel and it is used by several SOCs, in U-Boot too. Maybe we like to see directly the mask, but several users like use it and I should accept it. Both solutions (fixing GENMASK or revert it) are fine with me.
Today a new patch was sent :
http://patchwork.ozlabs.org/patch/556361/
same issue, fixing the GENMASK().
Troy's patch was assigned to me, but it belongs to SPI's custodian, so I move it to Jagan.
Best regards, Stefano Babic
Reviewed-by: Fabio Estevam fabio.estevam@freescale.com Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com
v2: add sign off/ reviewed by
drivers/spi/fsl_qspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c index ed39114..dd7048a 100644 --- a/drivers/spi/fsl_qspi.c +++ b/drivers/spi/fsl_qspi.c @@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR;
#define TX_BUFFER_SIZE 0x40 #endif
-#define OFFSET_BITS_MASK GENMASK(24, 0) +#define OFFSET_BITS_MASK 0x00ffffff
#define FLASH_STATUS_WEL 0x02
-- 2.5.0
thanks!
Best regards, Marek Vasut
participants (5)
-
Fabio Estevam
-
Jagan Teki
-
Marek Vasut
-
Stefano Babic
-
Troy Kisky